CN116261035A

CN116261035A - Iris diaphragm optical lens and camera module

Info

Publication number: CN116261035A
Application number: CN202111492200.XA
Authority: CN
Inventors: 曹前进; 鲁晓峰; 洪超; 黄桢; 袁栋立; 白华; 许源霄
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-06-13
Also published as: CN118613760A; WO2023103435A1

Abstract

The application discloses an iris diaphragm optical lens and a camera module. Wherein, iris diaphragm optical lens includes: an iris device including a blade configured to rotate to form an incident hole having an adjustable aperture, the iris device further having a light passing hole located at an image side of the incident hole; and an optical lens having one end extending from an image side of the light passing hole into the light passing hole, the optical lens having a diaphragm bearing portion on a peripheral side thereof, the diaphragm device bearing against the diaphragm bearing portion. The iris diaphragm optical lens is applied to the camera shooting module, the camera shooting module can adjust the light incoming quantity according to the external light condition in the shooting process, and good imaging effects can be obtained in different shooting environments. The nested installation of the iris diaphragm device and the optical lens is beneficial to reducing the overall height of the iris diaphragm optical lens on one hand, and the upper end of the optical lens is protected by the iris diaphragm device on the other hand.

Description

Iris diaphragm optical lens and camera module

Technical Field

The application relates to the technical field of optical imaging, in particular to an iris diaphragm optical lens and an imaging module.

Background

With the development of man-machine interaction technology, a camera module for performing face recognition or picture shooting becomes an indispensable electronic accessory of a mobile terminal. Under the general condition, the imaging environment of the camera module is complex, if the outdoor light rays of the weather are sufficient, the light ray information of the shot object obtained when the camera module shoots is more, and the imaging quality of the picture is improved; and at night or in overcast and rainy days that light is not enough, the light information that the module of making a video recording obtained for the light of shot object obtains the information inadequately, and the corresponding decline of the image quality of picture. In order to effectively improve the imaging quality of the camera module in different shooting environments, namely, the camera module cannot be excessively exposed under the condition of bright light, imaging can be clear under the condition of insufficient light, and a variable aperture device can be added in the camera module to adjust the light inlet quantity of a lens, but the volume of the camera module can be obviously increased by directly applying the conventional variable aperture device to the lens, so that the camera module does not accord with the development trend of miniaturization of the current camera module.

Disclosure of Invention

An object of the present application is to provide a compact iris diaphragm optical lens.

Another object of the present invention is to provide an image capturing module with a small size and a variable aperture function.

To achieve the above object, the present application provides an iris diaphragm optical lens, comprising:

an iris diaphragm device including a blade configured to rotate to form an incident hole having an adjustable aperture, the iris diaphragm device further having a light passing hole located on an image side of the incident hole; and

and one end of the optical lens extends into the light through hole from the image side of the light through hole, the periphery side of the optical lens is provided with a diaphragm bearing part, and the iris diaphragm device is supported by the diaphragm bearing part.

Further, the optical lens comprises a lens barrel and a plurality of lenses arranged in the lens barrel, the lens barrel comprises a first lens barrel part close to an image side and a second lens barrel part close to an object side, the outer diameter of the first lens barrel part is larger than that of the second lens barrel part, and the second lens barrel part wholly or partially extends into the light transmission hole.

Further, the first barrel portion and the second barrel portion are of an integral structure; alternatively, the first barrel portion and the second barrel portion are of a split structure.

Further, the bottom surface of the iris device is supported against the diaphragm supporting portion, and/or the inner wall of the light passing hole of the iris device is supported against the diaphragm supporting portion. .

Further, glue is arranged between the iris diaphragm device and the diaphragm bearing part for bonding.

Further, the iris diaphragm optical lens further includes a second optical lens disposed on an object side of the iris diaphragm device.

Further, the iris diaphragm device comprises a fixing portion and a driving mechanism arranged on the fixing portion, the light transmission hole is formed in the middle of the fixing portion, the blades are movably arranged on the fixing portion, and the driving mechanism is configured to drive the blades to rotate so as to adjust the aperture of the incident hole.

Further, the fixed part comprises an installation shell and a circuit board, a light passing hole is formed in the middle of the installation shell, the circuit board and the driving mechanism avoid the light passing hole to be arranged on the installation shell, the blades are movably arranged on the installation shell, so that the incident holes formed by the blades are opposite to the light passing hole, and the blades, the driving mechanism and the circuit board are sequentially arranged along the direction of an optical axis.

Further, the driving mechanism comprises a driving piece, a driving magnet and a driving coil, wherein the driving piece, the driving magnet and the driving coil are sequentially arranged along the direction of an optical axis, the driving piece is movably arranged between the mounting shell and the blade and is configured to drive the blade to rotate when moving, the driving piece is in a circular ring shape, the driving magnet is arranged on the bottom surface of the driving piece, the driving coil and the driving magnet are oppositely arranged on the mounting shell or the circuit board, and the driving coil is in conductive connection with the circuit board.

Further, the iris diaphragm device includes a plurality of the blades, one end of each of the blades is rotatably connected to the mounting housing, and the other end extends above the light passing hole, so that the plurality of blades in combination define the incident hole, and each of the blades is connected to the driving member such that the driving member rotates to rotate each of the blades to adjust the aperture of the incident hole.

Further, the blade is provided with a positioning hole, the mounting shell is provided with a positioning column matched with the positioning hole, the positioning column is used as a shaft when the blade rotates, the blade is further provided with a movable hole, the driving piece is provided with a limiting column in sliding fit with the movable hole, the movable hole is provided with a stroke space for the sliding of the limiting column, and the limiting column moves in the movable hole and drives the blade to rotate when the driving piece rotates.

Further, the circuit board and the driving piece are respectively located at two sides of the installation shell, a coil through hole for accommodating the driving coil is formed in the bottom surface of the installation shell, the driving coil is arranged on the circuit board and extends into the coil through hole from the circuit board, so that the driving coil is opposite to the driving magnet arranged on the bottom surface of the driving piece, a mounting groove is formed in the bottom surface of the driving piece, and the driving magnet is embedded into the mounting groove.

Further, the circuit board is a flexible printed circuit board, the fixing portion further includes a mounting plate that is provided on a side of the mounting housing on which the circuit board is mounted, and holds the circuit board between the mounting plate and the mounting housing.

Further, the fixing portion further comprises a locking piece, the locking piece is arranged on the mounting shell in a mode that the light transmission hole is avoided, and the blade is kept between the locking piece and the mounting shell.

Further, the iris diaphragm optical lens further comprises a second optical lens, the second optical lens is arranged on the locking piece, a locking piece light-passing hole is formed in the middle of the locking piece, the second optical lens is opposite to the locking piece light-passing hole, and the bottom of the second optical lens extends to the image side and enters the locking piece light-passing hole.

Further, the bottom surface of the driving member has a first member, the mounting housing has the second member opposite to the first member, the driving member and the mounting housing are contacted in the optical axis direction by the first member and the second member, and the first member and the second member are used for reducing friction force when the driving member is displaced.

Further, the iris diaphragm device further comprises a position detection unit for detecting the position of the driving member, the position detection unit comprises a position detection magnet arranged on the driving member and a position detection sensor arranged opposite to the position detection magnet, the mounting housing is provided with a sensor through hole, the position detection sensor is arranged on the circuit board and extends into the sensor through hole, the bottom surface of the driving member is provided with a position detection groove, and the position detection magnet is embedded into the position detection groove.

The application also provides a camera module, including iris diaphragm optical lens, motor structure and sensitization subassembly, the middle part of motor structure has a camera lens installation cavity, optical lens sets up in the camera lens installation cavity, motor structure is used for the drive optical lens displacement, sensitization subassembly sets up optical lens's image side is used for imaging.

Further, the bottom surface of the iris device is opposite to the upper end surface of the motor structure, the motor structure comprises a motor movable part and a motor fixed part, the optical lens is connected with the motor movable part, the iris device further comprises a driving mechanism and a circuit board for controlling the driving mechanism, and the circuit board of the iris device is electrically connected with a circuit of the motor movable part.

Further, the photosensitive assembly comprises a photosensitive chip, a second circuit board electrically connected with the photosensitive chip, a color filter arranged between the photosensitive chip and the optical lens, and a color filter bracket for supporting the color filter, and is manufactured by adopting a molding process.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The iris diaphragm optical lens is applied to the camera module, so that the camera module can adjust the light incoming quantity according to the external light condition in the shooting process, and a better imaging effect can be obtained in different shooting environments;

(2) The nested installation of the iris diaphragm device and the optical lens is beneficial to reducing the overall height of the iris diaphragm optical lens on one hand, and the upper end of the optical lens is protected by the iris diaphragm device on the other hand.

(3) In the camera module provided by the application, the iris device is connected with the motor movable part, and the circuit design inside the module can be optimized while the circuit of the iris device is conducted.

The above and other advantages of the present application will be described in detail in the detailed description.

Drawings

FIG. 1 is a schematic diagram of one embodiment of a variable aperture optical lens of the present application;

FIG. 2 is an exploded view of one embodiment of a variable aperture optical lens of the present application;

FIG. 3 is a cross-sectional view of one embodiment of a variable aperture optical lens of the present application;

FIG. 4 is an enlarged partial view of FIG. 3;

FIG. 5 is a simplified schematic diagram of one embodiment of a variable aperture optical lens of the present application;

FIG. 6 is a schematic diagram of another embodiment of a variable aperture optical lens of the present application;

FIG. 7 is an exploded view of another embodiment of a variable aperture optical lens of the present application;

FIG. 8 is a cross-sectional view of another embodiment of a variable aperture optical lens of the present application;

FIG. 9 is a schematic diagram of one embodiment of a camera module of the present application;

FIG. 10 is an exploded view of one embodiment of a camera module of the present application;

FIG. 11 is a schematic view of one embodiment of a variable aperture device of the present application;

FIG. 12 is an exploded view of one embodiment of the iris diaphragm device of the present application;

FIG. 13 is an exploded view of one embodiment of the iris diaphragm device of the present application;

FIG. 14 is a top view of one embodiment of an iris diaphragm device of the present application;

FIG. 15 is a schematic view in section A-A of FIG. 14;

FIG. 16 is a schematic view in section B-B of FIG. 14;

FIG. 17 is a bottom view of one embodiment of an iris diaphragm device of the present application;

FIG. 18 is a schematic view in section C-C of FIG. 17;

FIG. 19 is a schematic view of an embodiment of the iris diaphragm device of the application, wherein the locking tab is not shown;

FIG. 20 is a schematic view of an embodiment of the iris diaphragm device of the application, wherein the locking tabs, blades are not shown;

FIG. 21 is a schematic view of an embodiment of the iris diaphragm device of the application, wherein the locking tabs, blades and drivers are not shown;

FIG. 22 is a schematic view of one embodiment of a driving member of the iris apparatus of the application;

FIG. 23 is a schematic view of another embodiment of the iris diaphragm device of the present application;

FIG. 24 is an exploded schematic view of another embodiment of the iris diaphragm device of the present application;

in the figure: 100. a variable aperture device; 1. a fixing part; 11. a mounting shell; 110. a light-transmitting hole; 111. a coil through hole; 112. a second component; 113. positioning columns; 114. a capacitor through hole; 115. a sensor through hole; 116. a first convex portion; 117. a relief opening; 118. a positioning block; 119. a lens bearing part; 12. a circuit board; 121. a capacitor; 13. a mounting plate; 131. a mounting plate subsection; 14. locking attachment pieces; 141. avoidance holes; 142. a positioning groove; 151. a positioning piece; 152. a circuit board positioning through hole; 153. a mounting plate positioning through hole; 2. a driving mechanism; 21. a driving member; 211. a first component; 212. balancing weight; 213. a limit column; 214. a mounting groove; 215. an enlarged end; 216. a balancing weight groove; 217. a position detection groove; 218. a second convex portion; 22. a driving coil; 23. a driving magnet; 3. a blade; 30. an entry hole; 31. positioning holes; 32. a movable hole; 4. a position detection unit; 41. a position detecting magnet; 42. a position detection sensor; 500. an optical lens; 501. a first barrel section; 502. a second barrel section; 503. an aperture bearing part; 600. a second optical lens; 601. a third barrel; 602. a second lens connection part; 700. a motor structure; 701. a lens mounting cavity; 800. and a photosensitive assembly.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

The axial direction as used herein refers to the direction of the optical axis, and the radial direction refers to the direction perpendicular to the optical axis. The object side refers to a side of the lens or the camera module, which is close to the shooting object, and the image side refers to a side of the lens or the camera module, which is close to the photosensitive chip.

As shown in fig. 1 and 6, the iris diaphragm optical lens of the present application includes an iris diaphragm device 100 and an optical lens 500, where the iris diaphragm device 100 is used to adjust the light incoming amount of the optical lens 500, and the lens of the present application is applied in a camera module, so that the camera module can adjust the light incoming amount according to the external light condition during the shooting process, and can obtain better imaging effects in different shooting environments.

As shown in fig. 2 and 7, the variable aperture device 100 includes a blade 3, and the blade 3 is configured to rotate to form an entrance aperture 30 with an adjustable aperture. As shown in fig. 3 and 8, the iris apparatus 100 has a light-passing hole 110, and the light-passing hole 110 is located on the image side of the entrance hole 30 such that when the aperture of the entrance hole 30 is changed, the amount of light entering the light-passing hole 110 is changed accordingly. One end of the optical lens 500 extends from the image side of the light passing hole 110 into the light passing hole 110, that is, the diaphragm device 100 is nested with the upper end of the optical lens 500, so that when the light entering amount of the light passing hole 110 changes, the light entering amount of the optical lens 500 changes accordingly. Fig. 5 is a simplified schematic diagram of one embodiment of an iris-diaphragm optical lens of the present application, showing one end of the optical lens 500 nested within the light-passing aperture 110 of the iris-diaphragm device 100. The iris diaphragm device 100 and the optical lens 500 are nested and installed to realize the light quantity adjustment, so that the overall height of the iris diaphragm optical lens can be reduced, and the upper end of the optical lens 500 is protected by the iris diaphragm device 100.

It will be appreciated by those skilled in the art that the maximum aperture of the entrance aperture 30 is equal to or smaller than the aperture of the light passing aperture 110, so that the luminous flux of the lens is determined by the aperture of the entrance aperture 30.

As shown in fig. 3-5, the optical lens 500 includes a barrel and several lenses disposed within the barrel. The lens barrel includes a first barrel portion 501 near the image side and a second barrel portion 502 near the object side. The first barrel part 501 may be connected to a motor structure of the image capturing module, so that the optical lens 500 may be driven to displace by the motor structure. The second barrel portion 502 extends wholly or partially into the light passing hole 110. It should be noted that, the first lens barrel portion 501 and the second lens barrel portion 502 are respectively provided with a plurality of lenses, and the lens closest to the object side in the second lens barrel portion 502 may be completely located in the second lens barrel portion 502 or may protrude from the end surface of the second lens barrel portion 502, so long as the end surface of the lens is ensured not to interfere with the blade 3.

In some embodiments, the outer diameter of the second barrel portion 502 is smaller than the outer diameter of the first barrel portion 501, i.e., the barrel of the optical lens 500 is in a shape with a small top and a large bottom. In these embodiments, the iris apparatus 100 can be disposed with the full use of the space at the periphery of the second barrel portion 502, which is advantageous in reducing the radial size of the iris optical lens.

The first barrel portion 501 and the second barrel portion 502 may be of an integral structure, as shown in fig. 8, that is, an optical lens 500 is an integral optical lens; the first barrel portion 501 and the second barrel portion 502 may also be of a split structure, as shown in fig. 3, that is, the optical lens 500 is a split type optical lens.

In the embodiment shown in fig. 3, the first barrel portion 501 and the second barrel portion 502 are in a split structure, the second barrel portion 502 is carried on an upper end surface of the first barrel portion 501, and the second barrel portion 502 and the first barrel portion 501 can be adhered by glue. Further, the second barrel portion 502 and the first barrel portion 501 may also be nested to reduce the axial height of the barrel, i.e., the upper end of the first barrel portion 501 extends into the second barrel portion 502.

In some embodiments, as shown in fig. 11-13, the iris apparatus 100 includes a fixing portion 1 and a driving mechanism 2, a light-passing hole 110 is formed in the middle of the fixing portion 1, and a blade 3 is movably disposed on the fixing portion 1, so that an incident hole 30 formed by the blade 3 is located on an object side of the light-passing hole 110. The driving mechanism 2 is configured to drive the blade 3 to rotate to adjust the aperture of the inlet hole 30. The fixing portion 1 forms a space around the circumference of the light passing hole 110 in which the driving mechanism 2 is mounted.

Further, the fixing part 1 comprises a mounting shell 11 and a circuit board 12, a light-passing hole 110 is formed in the middle of the mounting shell 11, and the circuit board 12 and the driving mechanism 2 are arranged on the mounting shell 1 so as to avoid the light-passing hole 110; the blade 3 is movably disposed on the mounting housing 11 such that the incident hole 30 formed by the blade 3 is opposite to the light passing hole 110; the blades 3, the driving mechanism 2, and the circuit board 12 are disposed in the mounting housing 11 in this order along the optical axis direction, so that the axial space of the mounting housing 11 can be fully utilized to dispose each component, and the excessive radial dimension of the iris diaphragm device 100 can be avoided. The circuit board 12 is connected with the driving mechanism 2 to control the driving mechanism 2 to operate.

The bottom surface of the mounting case 11 opposite to the wiring board 12 has a receiving hole for receiving the component on the wiring board 12, so that the component which protrudes from the wiring board 12 and occupies a large space is received in the receiving hole on the mounting case 11, so that the wiring board 12 is closely fitted to the mounting case 11, which is advantageous in reducing the axial dimension of the iris diaphragm device 100. In addition, the components on the circuit board 12 are accommodated in the accommodating holes on the mounting housing 11, so that a certain protection effect can be provided for the components, and the stability of the whole structure can be improved.

According to actual demand, the accommodation hole of this application can be the through-hole that both ends run through, also can be the non-hole that runs through. The receiving hole in the present application may be, but is not limited to: a coil through hole for accommodating the driving coil, a through hole for accommodating the position detection sensor, and a capacitor through hole for accommodating the capacitor.

Further, the driving mechanism 2 includes a driving member 21, a driving coil 22, and a driving magnet 23, which are sequentially disposed in the optical axis direction. The driving piece 21 is movably arranged between the mounting shell 11 and the blade 3 and is configured to drive the blade 3 to rotate when moving; a driving magnet 23 is provided on the bottom surface of the driving member 21, and a driving coil 22 is provided on the mounting housing 11 or the circuit board 12, so that the driving member 21 is displaced to rotate the blade 3 by the interaction of the driving coil 22 and the driving magnet 23. The drive coil 22 is electrically connected to the wiring board 12 such that power can be supplied to the drive coil 22 through the wiring board 12.

In some embodiments, the wiring board 12 and the driving member 21 are disposed on both sides of the mounting housing 11 in the optical axis direction, respectively, the mounting housing 11 has a coil through hole 111 on the bottom surface for accommodating the driving coil 22, and the driving coil 22 is disposed on the wiring board 12 and extends from the wiring board 12 into the coil through hole 111 such that the driving coil 22 is opposed to the driving magnet 23 disposed on the bottom surface of the driving member 21. The driving coil 22 is disposed in the coil through hole 111, so that the size of the iris diaphragm device 100 can be reduced while saving the internal space, and the driving coil 22 can be protected and positioned.

Further, the driving coil 22 is provided at a position of the wiring board 12 near the edge, and the side face of the coil through hole 111 communicates with the outside. Since the iris apparatus 100 of the present application is small in overall size, in order to simplify the structure of the installation housing 11, the side surface of the coil through hole 111 may be set to an open structure, which may also reduce the overall weight of the installation housing 11.

Further, the driving member 21 has a mounting groove 214 on a bottom surface opposite to the driving coil 22, and the driving magnet 23 is fitted into the mounting groove 214. The driving magnet 23 is inserted into the mounting groove 214, so that the space of the driving member 21 is fully utilized, the volume of the iris device 100 is further reduced, the structural compactness of the iris device 100 is improved, and the mounting stability of the driving magnet 23 is also improved. The driving magnet 23 and the driving member 21 may be integrally formed, or the driving magnet 23 may be mounted in a mounting groove 214 reserved in the driving member 21 through a subsequent assembly process.

In some embodiments, the driving member 21 has a circular ring shape, and the driving member 21 is movably disposed on the mounting housing 11.

In some embodiments, the driver 21 is provided with a section of the driver magnet 23 that extends radially outward to form an enlarged end 215 to provide sufficient space to embed the driver magnet 23. Further, in view of saving the internal space, the mounting housing 11 forms a relief opening 117 opposite to the enlarged end 215, and the width of the relief opening 117 is larger than the width of the enlarged end 215, so that the enlarged end 215 can rotate in the relief opening 117 when the driving member 21 rotates. The provision of the relief opening 117 is advantageous in reducing the size of the iris apparatus 100, avoiding interference with the mounting housing 11 when the driving member 21 rotates, and in addition, limiting the rotation angle of the driving member 21.

Further, there are a plurality of blades 3, one end of each blade 3 is rotatably connected to the mounting housing 11, and the other end extends above the light passing hole 110, so that the plurality of blades 3 in combination define an incident hole 30 with an adjustable aperture, and each blade 3 is connected to the driving member 21 such that the driving member 21 rotates to rotate each blade 3 to adjust the aperture of the incident hole 30.

Further, the vane 3 has a positioning hole 31, and the mounting housing 11 has a positioning post 113 that mates with the positioning hole 31, and the vane 3 rotates around the positioning post 113. That is, the vane 3 and the mounting housing 11 are rotatably connected through the positioning hole 31 and the positioning post 113. The blade 3 is also provided with a movable hole 32, the driving piece 21 is provided with a limit column 213 which is in sliding fit with the movable hole 32, the movable hole 32 is provided with a travel space for the limit column 213 to slide, and when the driving piece 21 rotates, the limit column 213 moves in the movable hole 32 and drives the blade 3 to rotate. It should be noted that the stroke space of the movable hole 32 may limit the rotation angle of the blade 3, so as to ensure that the blade 3 rotates between a preset angle range.

In some embodiments, as shown in fig. 21, the positioning posts 113 are located at the edge of the mounting housing 11 near the outside.

In other embodiments, as shown in FIG. 23, the positioning posts 113 are located on the edge of the mounting housing 11 near the light passing aperture 110.

The position that reference column 113 set up is different for spacing post 213 also is different in the setting position on driving piece 21, and then makes the shape of blade 3 also different, and the shape of blade 3 can influence the adjustable scope of entrance hole 30 aperture, in practical application, can select the blade 3 of different shapes according to actual demand, cooperates reference column 113 and the rotation of spacing post 213 realization blade 3 that sets up in different positions simultaneously.

Further, the positioning holes 31 are circumferentially provided at equal intervals on the mounting housing 11, the stopper posts 213 are circumferentially provided at equal intervals on the driver 21, and the blades 3 are rotationally symmetrically provided.

Further, the iris apparatus 100 includes an even number of blades 3, each blade 3 being alternately disposed up and down along the circumference, and an incident hole 30 having an adjustable aperture being formed in the middle of each blade 3. When the aperture of the inlet hole 30 is increased from small to large, the upper and lower blades 3 are gradually laminated. In a specific embodiment, the iris diaphragm device 100 includes six blades 3.

Further, a first protrusion 116 and a second protrusion 218 are respectively provided near the positioning post 113 and the limiting post 213, which are engaged with the upper blade 3, and the first protrusion 116 and the second protrusion 218 are used for holding the upper blade 3 above the lower blade 3, so as to reduce friction between the upper and lower blades 3 when the blades 3 rotate.

In some embodiments, the circuit board 12 is a flexible printed circuit board (FPC flexible board), and by fitting the bottom surface of the mounting housing 11, the flatness of the circuit board 12 can be ensured. Further, the circuit board 12 may be adhesively fixed to the bottom surface of the mounting case 11 to increase the flatness of the circuit board 12.

In some embodiments, the fixing portion 1 further includes a mounting plate 13, the mounting plate 13 being provided on a side of the mounting housing 11 where the wiring board 12 is mounted, and holding the wiring board 12 between the mounting plate 13 and the mounting housing 11. The mounting board 13 serves to protect the wiring board 12 and also to increase the flatness of the wiring board 12. The wiring board 12 and the mounting board 13 may be bonded and fixed.

In one embodiment, the mounting plate 13 is a metal material that is adapted to be attracted to a magnet such that the mounting plate 13 interacts with the magnet on the driver 21 to facilitate retention of the driver 21 to the mounting housing 11 to improve the structural stability of the iris apparatus 100. In some embodiments, when balls are provided between the driver 21 and the mounting housing 11 to reduce friction, the interaction force between the mounting plate 13 and the driver 21 also helps to trap the balls between the driver 21 and the mounting housing 11. It should be noted that the interaction between the mounting plate 13 and the magnets on the driving member 21 is in the axial direction, and the rotation direction of the driving member 21 is perpendicular to the axial direction, so that the interaction between the mounting plate 13 and the magnets on the driving member 21 does not affect the rotation of the driving member 21.

Further, in order to avoid that the rotation of the driving element 21 is affected by too much force between the mounting plate 13 and the magnet on the driving element 21, the mounting plate 13 is in a hollow structure, and the interaction between the mounting plate 13 and the magnet on the driving element 21 is reduced by reducing the amount of metal material on the mounting plate 13.

Further, the mounting board 13 is in a split structure, that is, the mounting board 13 includes a plurality of mounting board subsections 131 separated from each other, and each mounting board subsection 131 is arranged at one side of the circuit board 12 at intervals, so that the flatness of each area of the circuit board 12 can be ensured, and the size of the mounting board 13 can be reduced.

Further, as shown in fig. 13, the positioning member 151 is disposed on the bottom surface of the mounting housing 11, and the circuit board positioning through hole 152 and the mounting board positioning through hole 153 are disposed at the positions corresponding to the circuit board 12 and the mounting board 13, respectively, so that the mounting position of the circuit board 12 can be positioned by the cooperation of the circuit board positioning through hole 152 and the positioning member 151, and the mounting position of the mounting board 13 can be positioned by the cooperation of the mounting board positioning through hole 153 and the positioning member 151, so that the assembly process is more convenient.

In some embodiments, the fixing portion 1 further includes a locking piece 14, and the locking piece 14 is disposed on the mounting housing 11 so as to avoid the light-transmitting hole 110, and holds the blade 3 between the locking piece 14 and the mounting housing 11. The provision of the locking piece 14 contributes to an improvement in the overall stability of the iris apparatus 100, and also protects the internal components. Further, a black object is provided on the object side surface of the locking piece 14 for preventing reflection of light. Further, the mounting case 11 has a positioning block 118 on a surface opposite to the locking piece 14, the locking piece 14 is formed with a positioning groove 142 at a position corresponding to the positioning block 118, and the locking piece 14 is held at a preset position of the mounting case 11 by cooperation of the positioning block 118 and the positioning groove 142.

Further, the locking piece 14 is provided with a avoiding hole 141 for preventing interference with the positioning post 113 and the limiting post 213. In order to make the structure of the iris apparatus 100 as compact as possible, it is necessary to reduce the gap between the lock tab 14 and the blade 3, and in order to improve the mounting stability of the blade 3 and the positioning posts 113 and the stopper posts 213, the heights of the positioning posts 113 and the stopper posts 213 should not be too low, and in view of the above, the lock tab 14 is provided with the avoiding hole, so that the heights of the positioning posts 113 and the stopper posts 213 may exceed the blade 3, and the overall thickness of the iris apparatus 100 may be prevented from being increased.

The circuit board 12, the mounting plate 13, and the locking piece 14 may be of a circular ring configuration so as to be integrally provided on the mounting housing 11 around the light passing hole 110, and the aperture of the center of the circular ring is preferably not smaller than the maximum aperture of the incident hole 30, so that the light flux is determined by the aperture of the incident hole 30. The circuit board 12, the mounting plate 13 and the locking tab 14 may also be designed as separate parts, so that they are arranged on the mounting housing 11 in circumferential sections.

In some embodiments, the bottom surface of the driving member 21 has a first part 211, the mounting housing 11 has a second part 112 opposite to the first part 211, and the driving member 21 and the mounting housing 11 are contacted in the optical axis direction by the first part 211 and the second part 112. When the driving member 21 rotates relative to the mounting housing 11, the friction force between the driving member 21 and the mounting housing 11 increases the requirement for driving force, and by reducing the contact area between the driving member 21 and the mounting housing 11, the friction force between the driving member 21 and the mounting housing 11 in this embodiment can be reduced when the driving member 21 moves relative to the mounting housing 11 due to the contact between the first member 211 and the second member 112.

Further, the first member 211 and the second member 112 are a boss and a chute, respectively, in which the boss slides when the driving member 21 rotates relative to the mounting housing 11. The design of boss and spout can ensure not increasing under the condition of whole thickness, reduces the area of contact between driving piece 21 and the installation casing 11, has realized the make full use of inner space, moreover through the cooperation of boss and spout, also can carry out spacing to the displacement of driving piece 21 to ensure that driving piece 21 rotates along predetermineeing the direction in predetermineeing the angle range.

In some embodiments, the first component 211 is a boss and the second component 112 is a chute; in other embodiments, the first member 211 is a chute and the second member 112 is a boss. In the embodiment shown in fig. 15, the first part 211 is a boss, the second part 112 is a chute, and the end of the first part 211 facing the second part 112 is tapered to further reduce the friction between the first part 211 and the second part 112.

In some variant embodiments, the first part 211 and the second part 112 are respectively a ball and a ball groove, in which the ball is adapted to roll, the ball groove being able to limit the displacement of the ball, so as to ensure that the driving member 21 rotates in a preset direction within a preset angular range.

Further, the first member 211 and the second member 112 are at least two pairs and are equally spaced along the circumference of the light passing hole 110 to ensure the stability of the support.

In some embodiments, the iris apparatus 100 further includes a position detecting unit 4 for detecting a rotational position of the driving member 21, the position detecting unit 4 includes a position detecting magnet 41 disposed on the driving member 21 and a position detecting sensor 42 disposed opposite to the position detecting magnet 41, when the driving member 21 rotates, a relative position between the position detecting magnet 41 and the position detecting sensor 42 changes, and a position of the driving member 21 can be determined according to a magnetic field strength of the position detecting magnet 41 detected by the position detecting sensor 42, and then a current of the driving coil 22 is adjusted to move the driving member 21 to a desired position.

Further, the position detection sensor 42 is provided on the wiring board 12 and electrically connected to the wiring board 12, and the mounting case 11 is provided with a sensor through hole 115 opposed to the position detection sensor 42, and the position detection sensor 42 extends into the sensor through hole 115.

Further, a position detection groove 217 is provided on the bottom surface of the driver 21, and the position detection magnet 41 is fitted into the position detection groove 217.

Further, the driving member 21 is further provided with a weight 212 for balancing the center of gravity of the driving member 21. The bottom surface of the driving member 21 has a weight groove 216 for placing the weight 212 so that the weight 212 is embedded in the driving member 21 to save the inner space of the iris apparatus 100.

In some embodiments, the bottom surface of the driving member 21 is symmetrically provided with two sets of driving magnets 23, and correspondingly, the circuit board 12 is symmetrically provided with two sets of driving coils 22. The weight 212 is symmetrically disposed between the two sets of driving magnets 23 with respect to the position detecting magnet 41 to ensure that the center of gravity of the driving member 21 is stable.

In some embodiments, the weight 212 is a magnet of the same size as the position sensing magnet 41.

In addition to the driving coil 22 and the position detecting sensor 42, other electronic components, such as a capacitor 121, may be disposed on the circuit board 12, and the bottom surface of the mounting housing 11 has a plurality of receiving holes, such as a capacitor through hole 114, corresponding to the respective electronic components, so that when the circuit board 12 is disposed on the bottom surface of the mounting housing 11, the electronic components protruding thereon are respectively received in the receiving holes of the mounting housing 11, so that the circuit board 12 is attached to the bottom surface of the mounting housing 11, which improves the space utilization rate inside the iris diaphragm device 100, and also protects the components to a certain extent.

The optical lens 500 has a diaphragm bearing portion 503 on the peripheral side, and the variable diaphragm device 100 is supported by the diaphragm bearing portion 503. In other words, the portion of the optical lens 500 for carrying the iris apparatus 100 is located on the peripheral side of the optical lens 500, and this arrangement is advantageous in that the space on the peripheral side of the optical lens 500 is fully utilized, thereby reducing the axial dimension of the iris optical lens.

In some embodiments, the bottom surface of the iris apparatus 100 bears against the aperture bearing portion 503, as shown in fig. 8, that is, the aperture bearing portion 503 is outside the light-passing hole 110. By bringing the bottom surface of the iris apparatus 100 into contact with the diaphragm carrying portion 503, the upper end of the optical lens 500 can be effectively accommodated in the light passing hole 110, and the space on the peripheral side of the optical lens 500 can be fully utilized. Further, the bottom surface of the mounting housing 11 extends downward along the edge of the light passing hole 110 to form a lens bearing portion 119, and the lens bearing portion 119 bears against the diaphragm bearing portion 503.

In other embodiments, the inner wall of the light passing hole 110 of the iris apparatus 100 is supported by the aperture bearing portion 503, as shown in fig. 3 and 4, that is, the aperture bearing portion 503 is located in the light passing hole 110, so that the radial space in the light passing hole 110 can be fully utilized, which is beneficial to reducing the axial dimension of the iris optical lens. Further, the inner wall of the light passing hole 110 has a bearing surface extending obliquely outward from the object side to the image side, the aperture bearing portion 503 has an inclined bearing surface corresponding to the bearing surface, and the bearing surface are arranged to be inclined, which is beneficial to increasing the contact area between the variable aperture device 100 and the optical lens 500, and further increasing the connection stability.

In other embodiments, the bottom surface of the iris apparatus 100 and the inner wall of the light-passing hole 110 thereof are supported by the aperture bearing portion 503, that is, a portion of the aperture bearing portion 503 extends into the light-passing hole 110, and another portion is located outside the light-passing hole 110, so that the contact area between the iris apparatus 100 and the optical lens 500 can be increased, and the connection stability can be increased. And meanwhile, the peripheral space of the optical lens can be fully utilized, and the axial size is reduced.

Glue may be provided between the iris apparatus 100 and the diaphragm carrying portion 503 for bonding. In order to improve the bonding stability, the bonding surfaces of the diaphragm bearing portion 503 and the iris diaphragm device 100 have a certain roughness, so as to improve the stability during glue bonding.

The aperture carrier 503 may be provided on the side wall of the second lens portion 502, on the side wall of the first lens portion 501, or between the first lens portion 501 and the second lens portion 502.

In some embodiments, the optical lens 500 includes a lens barrel, a plurality of lenses disposed within the lens barrel, and a plurality of lenses disposed on an object side end surface of the lens barrel, and the iris apparatus 100 is disposed on the lens barrel to accommodate the lenses disposed on the end surface of the lens barrel within the light-transmitting hole 110. In these embodiments, the barrel of the optical lens 500 does not extend into the light-passing hole 110, which is advantageous for further reducing the overall volume of the iris apparatus 100. It should be noted that the lens arranged on the object side end face of the lens barrel can be fixed on the end face of the lens barrel through glue. At this time, the diaphragm bearing portion 503 is located at the upper end face of the lens barrel, which is located at the peripheral side of the lens provided on the lens barrel, so that the diaphragm bearing portion 503 is located at the peripheral side of the optical lens 500 as a whole.

In some embodiments, as shown in fig. 6 and 7, the iris-diaphragm optical lens further includes a second optical lens 600, where the second optical lens 600 is disposed on the object side of the iris-diaphragm device 100, that is, the optical lens 500 and the second optical lens 600 are respectively located on two sides of the iris-diaphragm device 100, and the second optical lens 600 and the optical lens 500 together achieve light convergence to complete imaging.

In some embodiments, the second optical lens 600 is disposed on the locking piece 14 of the iris apparatus 100, and the locking piece 14 has a locking piece light-passing hole in the middle, and the second optical lens 600 is opposite to the locking piece light-passing hole. The bottom of the second optical lens 600 may extend into the light-passing hole of the locking piece toward the image side, so as to fully utilize the internal space of the iris apparatus 100 and reduce the overall height of the lens. It should be noted that, when the second optical lens 600 extends toward the image side, it should be ensured that it does not interfere with the blade 3.

Further, the second optical lens 600 includes a third lens barrel 601, a plurality of lenses disposed in the third lens barrel 601, and a second lens connecting portion 602 disposed on an outer wall of the third lens barrel 601, the second lens connecting portion 602 is supported on the locking piece 14, and glue is disposed between the second lens connecting portion 602 and the locking piece 14 for adhesion and fixation. The bonding surfaces of the second lens connecting portion 602 and the locking piece 14 have a certain roughness so as to ensure the bonding stability.

The second optical lens 600 may be fixed to the variable aperture device 100 by glue or other means, and then the variable aperture device 100 to which the second optical lens 600 is fixed is aligned and bonded to the optical lens 500 using an active alignment technique. Alternatively, the iris apparatus 100 is first adhered and fixed to the optical lens 500, and then the second optical lens 600 is mounted on the iris apparatus 100 by using an active calibration technique to ensure that the iris optical lens can image normally.

The split optical lens has a larger aperture, and can be correspondingly combined with the iris diaphragm device 100, so that the optical lens with a larger aperture parameter adjustment range can be obtained, and better imaging is facilitated.

As shown in fig. 9 and 10, the present application further provides an image capturing module, which includes the aforementioned iris diaphragm optical lens, a motor structure 700 and a photosensitive assembly 800, wherein a lens mounting cavity 701 is provided in the middle of the motor structure 700, the iris diaphragm optical lens is disposed in the lens mounting cavity 701, and the motor structure 700 is configured to drive the iris diaphragm optical lens to move so as to implement an optical anti-shake or auto-focusing function. The photosensitive assembly 800 is disposed on the image side of the iris-diaphragm optical lens for imaging.

The camera module of this application can change the light inlet amount of camera module inside through iris device 100 to can adapt to different environment, avoid the too sufficient overexposure that produces of ambient light or the formation of image that ambient light is not enough to lead to not clear.

It should be noted that the photosensitive center of the photosensitive assembly 800 coincides with the optical axis of the iris optical lens. The light passes through the incident hole 30 formed by the iris device 100, then passes through the optical lens 500, reaches the photosensitive assembly 800, and outputs image information of the subject through the processing of the photosensitive assembly 800.

In the image capturing module provided by the application, the iris diaphragm optical lens is integrally driven by the motor structure 700, so that friction resistance when the iris diaphragm optical lens is displaced is reduced.

In some embodiments, the bottom surface of the iris apparatus 100 is opposite to the upper end surface of the motor structure 700, which is advantageous in preventing external dust from entering the inside of the motor structure 700.

In some embodiments, the side wall of the optical lens 500 has a threaded structure, the inner wall of the lens mounting cavity 701 of the motor structure 700 has a corresponding threaded structure, and the optical lens 500 and the motor structure 700 are connected and fixed by the threaded structure.

In some embodiments, the iris diaphragm device 100 includes a circuit board 12, the circuit board 12 being provided on the mounting housing 11, the circuit board 12 being electrically connected to the driving mechanism 2 for controlling the driving mechanism 2. The wiring board 12 is also electrically connected to the wiring of the motor structure 700 so that the motor structure 700 supplies the current of its operation to the iris diaphragm device 100.

As will be appreciated by those skilled in the art, the motor structure 700 includes a motor movable portion to which the variable aperture optical lens 500 is connected and a motor fixed portion, and a lens mount cavity 701 is formed in the motor movable portion. Further, the bottom surface of the iris diaphragm device 100 is supported against the upper end surface of the motor movable portion, so that when the motor movable portion drives the optical lens 500 to move, the iris diaphragm device 100 is driven to move together, so that the stability of focusing the iris diaphragm optical lens can be ensured, and in addition, external dust can be prevented from entering the lens mounting cavity 701.

The photosensitive assembly 800 includes a photosensitive chip, a second wiring board electrically connected to the photosensitive chip, a color filter disposed between the photosensitive chip and the iris optical lens, and a color filter holder for holding the color filter between the photosensitive chip and the iris optical lens. After the light rays are converged by the iris diaphragm optical lens, the stray light is filtered by the color filter, and then the stray light reaches the photosensitive chip, and the photosensitive chip converts the optical signals into electric signals and transmits the electric signals to the second circuit board.

Specifically, the photosensitive chip is arranged on the upper surface of the second circuit board, and the photosensitive chip is communicated with the second circuit board through a gold wire. The second circuit board is also provided with a plurality of electronic components, such as capacitors, which are arranged around the photosensitive chip. The color filter holder is disposed on the second wiring board so that the photosensitive chip is accommodated in a space formed by the color filter holder and the second wiring board. The color filter is disposed on the color filter holder.

To further reduce the height of the photosensitive assembly 800, the photosensitive assembly 800 may be molded, that is: the photosensitive chip is arranged on the upper surface of the second circuit board, the photosensitive chip is conducted with the second circuit board by utilizing a gold wire, and then the gold wire and the position of the electronic component on the second circuit board are molded by utilizing a molding process, so that the molding seat forms the color filter bracket capable of being provided with the color filter. In this way, the height of the photosensitive assembly 800 can be effectively reduced, and part of electronic components on the photosensitive assembly can be effectively protected, so that the photosensitive assembly is stably connected with the second circuit board.

In one embodiment, as shown, the photosensitive assembly 800 of the camera module is molded. The optical lens 500 is disposed in the lens mounting cavity 701 of the motor structure 700, and an upper end surface of the optical lens 500 extends out of the lens mounting cavity 701, that is, an object side end of the optical lens 500 protrudes out of the motor structure. The iris diaphragm device 100 is supported against the upper surface of the housing of the motor structure 700, and accommodates the portion of the optical lens 500 protruding from the motor structure in the light passing hole 110 thereof such that the blade 3 covers the end surface of the optical lens, and the rotation of the blade 3 is controlled by the driving mechanism 2 to adjust the aperture of the entrance hole 30. The circuit board 12 is electrified with the circuit of the motor structure 700, the circuit of the motor structure 700 is electrified with the second circuit board, and the whole structure of the camera module is electrically connected with an external power supply device through the second circuit board so as to provide current required by the operation of the driving mechanism 2, the motor structure 700 and the photosensitive assembly 800.

The iris diaphragm optical lens of the present application may be assembled into a semi-finished product, and then assembled on the motor structure 700, and after being assembled, the iris diaphragm device 100 of the iris diaphragm optical lens is supported against the upper surface of the housing of the motor structure 700, so that external dust can be prevented from entering the lens mounting cavity 701, and further reaches the photosensitive assembly 800. The iris diaphragm device 100 accommodates a portion of the optical lens 500 protruding from the motor structure 700 in an inner space thereof, and can effectively protect the optical lens 500 without increasing a height of a module. Further, the wiring board 12 of the iris apparatus 100 may be in communication with the wiring of the motor structure 700, and in particular, the wiring board 12 is connected to the motor movable portion, and resistance generated during movement of the motor movable portion of the iris apparatus 100 may be reduced.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. An iris diaphragm optical lens, comprising:

2. The variable aperture optical lens of claim 1, wherein the optical lens comprises a barrel and a plurality of lenses disposed within the barrel, the barrel comprising a first barrel portion near an image side and a second barrel portion near an object side, the first barrel portion having an outer diameter greater than an outer diameter of the second barrel portion, the second barrel portion extending wholly or partially into the light passing aperture.

3. The iris-diaphragm optical lens of claim 2, wherein the first barrel portion and the second barrel portion are of a unitary structure; alternatively, the first barrel portion and the second barrel portion are of a split structure.

4. The iris optical lens according to claim 1, wherein a bottom surface of the iris device is supported against the diaphragm supporting portion, and/or an inner wall of the light passing hole of the iris device is supported against the diaphragm supporting portion.

5. The iris diaphragm optical lens of claim 1, wherein the iris diaphragm device is bonded to the diaphragm carrying portion by glue.

6. The iris-diaphragm optical lens of claim 1, further comprising a second optical lens disposed on an object side of the iris-diaphragm device.

7. The iris optical lens of any of claims 1 to 6, wherein the iris device comprises a fixing portion and a driving mechanism provided at the fixing portion, the light passing hole is formed at a middle portion of the fixing portion, the blade is movably provided at the fixing portion, the driving mechanism is configured to drive the blade to rotate to adjust an aperture of the incident hole, and the fixing portion forms a space for installing the driving mechanism around a peripheral side of the light passing hole.

8. The iris diaphragm optical lens of claim 7, wherein the fixing part comprises a mounting housing and a circuit board, a light passing hole is formed in the middle of the mounting housing, the circuit board and the driving mechanism are arranged on the mounting housing so as to avoid the light passing hole, the blade is movably arranged on the mounting housing so that the incident hole formed by the blade is opposite to the light passing hole, the blade, the driving mechanism and the circuit board are sequentially arranged along the direction of the optical axis, and the circuit board is connected with the driving mechanism so as to control the driving mechanism to work.

9. The iris diaphragm optical lens of claim 8, wherein the driving mechanism comprises a driving member, a driving magnet and a driving coil which are sequentially arranged along the direction of the optical axis, wherein the driving member is movably arranged between the mounting housing and the blade and is configured to drive the blade to rotate when moving, the driving member is in a circular ring shape, the driving magnet is arranged on the bottom surface of the driving member, the driving coil and the driving magnet are oppositely arranged on the mounting housing or the circuit board, and the driving coil is electrically connected with the circuit board.

10. The iris diaphragm optical lens of claim 9, wherein the iris diaphragm device includes a plurality of the blades, one end of each of the blades is rotatably connected to the mounting housing, and the other end extends above the light passing hole, so that the plurality of blades in combination define the incident hole, each of the blades is connected to the driving member such that the driving member rotates to rotate each of the blades to adjust the aperture of the incident hole.

11. The iris diaphragm optical lens of claim 10, wherein the vane has a positioning hole, the mounting housing has a positioning post engaged with the positioning hole, the vane rotates with the positioning post as an axis, the vane further has a movable hole, the driving member has a limiting post slidably engaged with the movable hole, the movable hole has a stroke space for sliding the limiting post, and the limiting post moves in the movable hole and drives the vane to rotate when the driving member rotates.

12. The iris diaphragm optical lens of claim 9, wherein the circuit board and the driving member are respectively located at both sides of the mounting housing, a coil through hole for accommodating the driving coil is formed on a bottom surface of the mounting housing, the driving coil is disposed on the circuit board and extends from the circuit board into the coil through hole such that the driving coil is opposite to the driving magnet disposed on a bottom surface of the driving member, the bottom surface of the driving member has a mounting groove, and the driving magnet is embedded in the mounting groove.

13. The iris diaphragm optical lens of claim 12, wherein the circuit board is a flexible printed circuit board, the fixing part further comprises a mounting plate provided at a side of the mounting housing where the circuit board is mounted, and holding the circuit board between the mounting plate and the mounting housing;

the fixing part further comprises a locking piece, the locking piece is arranged on the mounting shell body in a mode that the light transmission hole is avoided, and the blade is kept between the locking piece and the mounting shell body.

14. The iris diaphragm optical lens of claim 13, further comprising a second optical lens disposed on the attachment tab, the attachment tab having an attachment tab light-passing hole in a middle portion thereof, the second optical lens being opposite the attachment tab light-passing hole, a bottom portion of the second optical lens extending into the attachment tab light-passing hole toward an image side.

15. The iris diaphragm optical lens of claim 12, wherein the bottom surface of the driving member has a first member, the mounting housing has the second member opposite to the first member, and the driving member and the mounting housing are contacted in the optical axis direction by the first member and the second member, the first member and the second member for reducing friction upon displacement of the driving member.

16. The iris optical lens of claim 12, wherein the iris apparatus further comprises a position detecting unit for detecting a position of the driving member, the position detecting unit comprising a position detecting magnet provided on the driving member and a position detecting sensor provided opposite to the position detecting magnet, the mounting housing having a sensor through hole, the position detecting sensor being provided on the circuit board and extending into the sensor through hole, a bottom surface of the driving member having a position detecting groove, the position detecting magnet being embedded in the position detecting groove.

17. The camera shooting module is characterized by comprising the iris diaphragm optical lens, a motor structure and a photosensitive assembly according to any one of claims 1-16, wherein a lens mounting cavity is formed in the middle of the motor structure, the optical lens is arranged in the lens mounting cavity, the motor structure is used for driving the optical lens to move, and the photosensitive assembly is arranged on the image side of the optical lens and used for imaging.

18. The camera module according to claim 17, wherein a bottom surface of the iris device is opposite to an upper end surface of the motor structure, the motor structure includes a motor movable portion and a motor fixed portion, the optical lens is connected to the motor movable portion, the iris device further includes a driving mechanism and a circuit board for controlling the driving mechanism, and the circuit board of the iris device is electrically connected to a circuit of the motor movable portion.

19. The camera module of claim 17, wherein the photosensitive assembly comprises a photosensitive chip, a second circuit board electrically connected to the photosensitive chip, a color filter disposed between the photosensitive chip and the optical lens, and a color filter holder for supporting the color filter, the photosensitive assembly being manufactured using a molding process.