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WO2018135454A1 - Dispositif d'imagerie - Google Patents

Dispositif d'imagerie Download PDF

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Publication number
WO2018135454A1
WO2018135454A1 PCT/JP2018/000900 JP2018000900W WO2018135454A1 WO 2018135454 A1 WO2018135454 A1 WO 2018135454A1 JP 2018000900 W JP2018000900 W JP 2018000900W WO 2018135454 A1 WO2018135454 A1 WO 2018135454A1
Authority
WO
WIPO (PCT)
Prior art keywords
support member
lens barrel
optical axis
holder
imaging device
Prior art date
Application number
PCT/JP2018/000900
Other languages
English (en)
Japanese (ja)
Inventor
優太 中村
Original Assignee
日本電産コパル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電産コパル株式会社 filed Critical 日本電産コパル株式会社
Priority to CN201880007544.7A priority Critical patent/CN110199213A/zh
Publication of WO2018135454A1 publication Critical patent/WO2018135454A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof

Definitions

  • One embodiment of the present invention relates to an imaging device or the like.
  • Patent Document 1 In an imaging apparatus having a lens barrel and a substrate on which an image sensor is mounted, it is necessary to adjust the position of the lens barrel relative to the image sensor and adjust the optical axis.
  • Patent Document 2 discloses a means for positioning and fixing the lens and the image sensor.
  • an imaging apparatus used in an automobile or the like has been required to have a configuration that can adjust the optical axis with higher accuracy than before and that does not cause a positional shift.
  • the conventional imaging device it is not easy to adjust the optical axis with high accuracy.
  • One means of the present invention is to A substrate (6) on which an imaging unit is mounted; A lens barrel (2) for holding the lens; A holder (1) for holding the lens barrel and connected to the substrate; A first support member (3) disposed between the holder and the lens barrel and in contact with the lens barrel on a first surface (3a) extending in a direction horizontal to the optical axis; A second support member (4) disposed between the holder and the lens barrel and in contact with the lens barrel at a second surface (4a) extending in a direction horizontal to the optical axis; An urging member (7) for urging the lens barrel toward the first support member and the second support member; The first surface (3a) and the second surface (4a) are surfaces extending in different directions.
  • An imaging device The first surface (3a) and the second surface (4a) are surfaces extending in different directions.
  • the first support member, the second support member, and the lens barrel are stably supported by the first support member, the second support member, and the biasing member from at least three directions.
  • the positions of the lens barrel and the imaging unit on the plane perpendicular to the optical axis can be adjusted. This makes it possible to adjust the optical axis with higher accuracy and ease than before.
  • the biasing member is a leaf spring (7).
  • the leaf spring is used as the urging member, so that the configuration can be made relatively thin and small.
  • the substrate is fixed to the holder;
  • the lens barrel is movable in the optical axis direction.
  • the position of the lens barrel and the imaging unit in the optical axis direction and the direction perpendicular to the optical axis can be adjusted only by adjusting the position of the lens barrel. That is, the optical axis adjustment and the focus adjustment can be performed by adjusting the position of the lens barrel.
  • the first support member (3) has a third surface (3b) extending in a direction different from the first surface
  • the second support member (4) has a fourth surface (4b) extending in a direction different from the second surface
  • a first movement restricting member (5a) in contact with the third surface so as to be movable in a direction perpendicular to the optical axis
  • a second movement restricting member (5b) in contact with the fourth surface so as to be movable in a direction perpendicular to the optical axis
  • the first support member and the second support member are moved by adjusting the first movement restricting member and the second movement restricting member, and the position of the lens barrel in the direction perpendicular to the optical axis. Adjustments can be made. Thereby, the optical axis can be adjusted only by adjusting the first movement restriction member and the second movement restriction member.
  • the holder has a mounting surface (1d) on which the first support member and the second support member are arranged,
  • the first movement regulating member (5a) can pressurize the first support member (3) toward the placement surface (1d) by pressing the third surface (3b),
  • the second movement restricting member (5b) can pressurize the second support member (4) toward the mounting surface (1d) by pressing the fourth surface (4b).
  • the first support member and the second support member are pressurized toward the placement surface by the first movement restricting member and the second movement restricting member, and the first support member and the second support member are pressurized. It is possible to more firmly and stably fix the position.
  • the holder has a first through hole (1b) for inserting the first movement restriction member and a second through hole (1c) for inserting the second movement restriction member.
  • the first movement restriction member and the second movement restriction member can be adjusted from the outside of the holder. Thereby, it can be set as the structure which can implement optical axis adjustment more easily.
  • the first surface and the second surface have substantially the same angle in the opposite direction with respect to the placement surface, With respect to the mounting surface, the third surface and the fourth surface have substantially the same angle in opposite directions.
  • the first support member and the second support member can be easily moved in a direction perpendicular to the optical axis.
  • it can be set as the structure which can perform an optical axis adjustment easily.
  • FIG. 4 is a cross-sectional view of the imaging device at a position BB in FIG. 3.
  • FIG. 5 is a cross-sectional view of the imaging device at a position CC in FIG. 4.
  • the image pickup apparatus of the present invention can move the first support member and the second support member to the X axis perpendicular to the optical axis while supporting the lens barrel by the slope of the first support member and the slope of the second support member.
  • One feature is that the position of the lens barrel can be adjusted on the X-axis and the Y-axis by simply moving the first support member and the second support member.
  • FIG. 1 is an external perspective view of the imaging apparatus according to the present embodiment.
  • FIG. 2 is an exploded perspective view of the imaging apparatus according to the present embodiment.
  • FIG. 3 is a plan view of the imaging apparatus according to the present embodiment as viewed from above (Y-axis direction).
  • FIG. 4 is a cross-sectional view taken along the line BB in FIG.
  • FIG. 5 is a cross-sectional view taken along the line CC in FIG.
  • the center position of the lens and the center position of the light incident on the image sensor is referred to as an “optical axis”.
  • An imaging target located on the opposite side of the imaging element from the lens is referred to as a “subject”.
  • the direction in which the subject is located with respect to the lens may be referred to as “front in the optical axis direction” or “subject side”.
  • the direction in which the image sensor is positioned with respect to the lens may be referred to as “back in the optical axis direction” or “image sensor side”.
  • Each figure shows an X axis, a Y axis, and a Z axis that are orthogonal to each other.
  • the Z axis is a direction parallel to the direction in which the optical axis extends.
  • optical axis adjustment refers to adjusting the position of a lens (or a lens barrel including a lens) and an image sensor on a plane orthogonal to the optical axis.
  • the imaging apparatus of the present embodiment includes a holder 1, a lens barrel 2, a first support member 3, a second support member 4, a first movement restriction member 5a, and a second movement restriction.
  • the member 5b, the substrate 6, and the biasing member 7 are included.
  • the holder 1 is a housing portion of the imaging apparatus, and includes a lens barrel 2, a first support member 3, a second support member 3, a first movement restriction member 5a, a second movement restriction member 5b, a substrate 6, and an urging force.
  • the member 7 is held.
  • the holder 1 has an opening 1a at a position including the optical axis, and the light that has passed through the lens barrel 2 passes through the opening 1a and is irradiated onto the imaging element 6a.
  • the holder 1 has an XZ plane and a horizontal placement surface 1d.
  • the first support member 3 and the second support member 4 are disposed on the placement surface 1d.
  • the lower surface (bottom surface) of each of the first support member 3 and the second support member 4 is in contact with the placement surface 1d.
  • the holder 1 has a surface 1e parallel to the XY plane in front of the optical axis direction.
  • the holder 1 has an XY plane and a horizontal surface 1f on the rear side in the optical axis direction facing the surface 1e.
  • the surface 1e is in contact with the front surfaces of the first support member 3 and the second support member 4 in the optical axis direction.
  • the surface 1 f is in contact with the rear surfaces of the first support member 3 and the second support member 4 in the optical axis direction. That is, the holder 1 supports the first support member 3 and the second support member 4 so as to be movable in the X-axis direction while restricting movement in the Z-axis direction.
  • the holder 1 has a first through hole 1b and a second through hole 1c extending in the X-axis direction.
  • the first movement restricting member 5a is inserted into the first through hole 1b
  • the second movement restricting member 5b is inserted into the second through hole 1c.
  • Each of the first through hole 1b and the second through hole 1c has a thread on the inner peripheral side.
  • the holder 1 is connected to the biasing member 7 by connecting screws 8a and 8b.
  • the holder 1 has a screw hole into which the connecting screws 8a and 8b are inserted.
  • the holder 1 is connected to the substrate 6 by connecting screws 9a and 9b.
  • the holder 1 has a screw hole into which the connecting screws 9a and 9b are inserted.
  • the lens barrel 2 is a cylindrical member that extends in the optical axis direction.
  • the lens barrel 2 holds one or more optical members including the lens 2a.
  • the optical member held by the lens barrel 2 includes a lens, a spacer, a caliber plate, an optical filter (not shown) and the like in addition to the lens 2a.
  • the lens including the lens 2a is made of a transparent material such as glass or plastic, and transmits light from the front in the optical axis direction while refracting light from the front in the optical axis direction.
  • the spacer is a disk-shaped member having an appropriate thickness in the optical axis direction, and adjusts the position of each lens in the optical axis direction.
  • the spacer has an opening at the center including the optical axis.
  • the aperture plate determines the outermost position of the light passing therethrough.
  • the optical filter suppresses or blocks light having a predetermined wavelength.
  • the optical filter includes, for example, an infrared cut filter that suppresses passing infrared rays. The number of these optical members can be arbitrarily changed.
  • the lens barrel 2 is disposed so as to contact the first slope 3 a of the first support member 3 and the second slope 4 a of the second support member 4.
  • the first slope 3a and the second slope 4a and the lens barrel 2 are in linear contact with the Z-axis direction. That is, when viewed in a plane perpendicular to the optical axis, the lens barrel 2 is in contact with each of the first inclined surface 3a and the second inclined surface 4a at one point.
  • the position of the lens barrel 2 in the Y-axis direction changes according to the distance in the X-axis direction between the first support member 3 and the second support member 4.
  • the position of the lens barrel 2 in the X-axis direction changes according to the positions of the first support member 3 and the second support member 4. That is, the position of the lens barrel 2 in the XY plane changes according to the positions of the first support member 3 and the second support member 4.
  • One end of the lens barrel 2 in the Y-axis direction is in contact with the curved portion 7a of the urging member 7 (see FIGS. 4 and 5).
  • the lens barrel 2 is in contact with the first support member 3 and the second support member 4 while being urged in the Y-axis direction by the urging member 7.
  • the lens barrel 2 has a groove 2b that is recessed in a groove shape from the outer peripheral position toward the inner peripheral side (see FIGS. 1 and 2).
  • the position of the groove portion 2b in the Z-axis direction changes according to the rotational position. Therefore, the position of the lens barrel 2 in the optical axis direction (Z-axis direction) can be changed by a method of inserting and rotating a pin or the like in the groove 2b.
  • an eccentric pin with an eccentric core may be inserted into the groove 2b to change the position of the lens barrel 2 in the optical axis direction.
  • the first support member 3 and the second support member 4 have a planar lower surface (bottom surface) in contact with the placement surface 1d.
  • the first support member 3 has a first slope 3a and a third slope 3b.
  • the second support member 4 has a second slope 4a and a fourth slope 4b.
  • the first slope 4a and the fourth slope 4b in the XY plane are parallel, and the second slope 4a and the third slope 3b are parallel.
  • the first slope 3a and the third slope 3b are line symmetric with respect to the Y axis
  • the second slope 4a and the fourth slope 4b are line symmetric with respect to the Y axis.
  • the 1st supporting member 3 and the 2nd supporting member 4 are the same shapes, manufacturing cost is cheap and it is easy to assemble.
  • the first support member 3 and the second support member 4 do not necessarily have the same shape.
  • the first inclined surface 3a to the fourth inclined surface 4b may be inclined surfaces in independent directions.
  • the third inclined surface 3b of the first support member 3 is in contact with the first movement restriction member 5a.
  • the position of the first support member 3 in the X-axis direction is determined by the amount of insertion of the first movement restriction member 5a into the first through hole 1b. Since the third inclined surface 3b has a predetermined angle with respect to the vector in the extending direction (X-axis direction) of the first movement restricting member 5a, the force applied to the first support member 3 from the first movement restricting member 5a. Are distributed in the X-axis direction and the Y-axis direction. Therefore, a force that pushes the first support member 3 against the placement surface 1d is applied from the first movement restriction member 5a to the first support member 3. The same applies to the second support member 4.
  • the first support member 3 of the present embodiment has a linear portion in the X-axis direction or the Y-axis direction at a portion connecting the lower surface, the first inclined surface 3a, and the third inclined surface 3b, but this linear portion is an indispensable portion. Absent. That is, the first support member 3 may have a triangular prism shape having three surfaces: a lower surface, a first inclined surface 3a, and a third inclined surface 3b. The same applies to the second support member 4.
  • Each of the first movement restriction member 5a and the second movement restriction member 5b is a screw-like member having a thread on the outer periphery of the shaft portion.
  • the first movement restricting member 5a is inserted into the first through hole 1b and is screwed
  • the second movement restricting member 5b is inserted into the second through hole 1c and is screwed.
  • the heads of the first movement restriction member 5 a and the second movement restriction member 5 b are exposed to the outside of the holder 1.
  • the first movement restricting member 5a and the second movement restricting member 5b are not necessarily screw-shaped and may be shaft-shaped members having no thread.
  • the substrate 6 is a rigid substrate on which electronic components including the image sensor 6a are mounted.
  • the substrate 6 has a screw hole into which the connecting screws 9a and 9b are inserted.
  • the substrate 6 is connected to the holder 1 by connecting screws 9a and 9b inserted through screw holes. Since the substrate 6 is fixed to the holder 1, the position of the image sensor 6 a is fixed to the holder 1.
  • the imaging element 6a is a photoelectric conversion element that converts irradiated light into an electrical signal, and is, for example, a C-MOS sensor or a CCD, but is not limited thereto.
  • the imaging element 6a is an example of the “imaging unit” in the present invention. In the imaging apparatus, an imaging unit that requires an imaging function other than the imaging element 6a may be employed.
  • the biasing member 7 is a leaf spring that elastically applies a biasing force, and biases the lens barrel 2 in the Y-axis direction toward the first support member 3 and the second support member 4.
  • the biasing member 7 has a curved portion 7a.
  • the curved portion 7 a of the urging member 7 is in contact with the lens barrel 2.
  • the biasing member 7 of the present embodiment has a leaf spring shape and is thinner in the Y-axis direction than the biasing member such as a coil spring. Therefore, the thickness of the imaging device in the Y-axis direction can be reduced.
  • the biasing member 7 may be replaced with a biasing member such as a coil spring, but may be thick in the Y-axis direction of the imaging device.
  • the biasing member 7 has an opening at a position corresponding to the groove 2b of the lens barrel 2. That is, the groove portion 2 b of the lens barrel 2 is visually recognized from the opening of the urging member 7.
  • a jig is inserted from the opening toward the groove 2b of the lens barrel 2, and the position of the lens barrel 2 in the optical axis direction (Z-axis direction) is adjusted.
  • the urging member 7 has a screw hole into which the connecting screws 8a and 8b are inserted.
  • the urging member 7 is connected to the holder 1 by connecting screws 8a and 8b inserted through screw holes.
  • optical axis adjustment and focus adjustment are performed as follows.
  • the position of the lens barrel 2 in the XY plane varies depending on the positions of the first support member 3 and the second support member 4.
  • the first support member 3 and the second support member 4 move only in the X-axis direction by adjusting the insertion amounts of the first movement restriction member 5a and the second movement restriction member 5b. Therefore, by adjusting the insertion amount of the first movement restricting member 5a and the second movement restricting member 5b, the position of the lens barrel 2 changes and the optical axis changes.
  • the optical axis Adjustment is complete.
  • the operator When adjusting the focus, the operator inserts a jig from the opening of the urging member 7 toward the groove 2b of the lens barrel 2, and the optical axis direction (Z-axis direction) of the lens barrel 2 through the groove 2b. ) Position. Thereby, focus adjustment is performed.
  • each member may be fixed using an adhesive as necessary.
  • an adhesive is not necessarily used, it can be fixed after optical axis adjustment and focus adjustment.
  • the first support member 3, the second support member 4, and the urging member 7 support the lens barrel stably from at least three directions as described above.
  • the positions of the lens barrel 2 and the imaging element 6a on the plane perpendicular to the optical axis (XY plane) are changed by changing the contact position between the first support member 3 and the second support member 4 and the lens barrel 2. Can be adjusted. Thereby, the optical axis can be adjusted.
  • the substrate 6 is fixed to the holder 1 and the lens barrel is movable in the optical axis direction, so that the positions of the first support member 3 and the second support member 4 are adjusted.
  • the optical axis adjustment and the focus adjustment can be performed only by adjusting the position of the lens barrel 2.
  • the first support member 3 and the second support member 4 are moved by adjusting the first movement restricting member 5a and the second movement restricting member 5b, and the position of the lens barrel 2 is adjusted. Can be adjusted. Therefore, it is possible to adjust the optical axis from the outside of the holder 1 by adjusting the insertion amounts of the first movement restriction member 5a and the second movement restriction member 5b.
  • the first support member 3 and the second support member 4 are pressurized against the mounting surface 1d by the first movement restriction member 5a and the second movement restriction member 5b, and the first support member It is possible to fix the position of 3 and the 2nd support member 4 more firmly and stably.
  • the heads of the first movement restriction member 5a and the second movement restriction member 5b are exposed to the outside of the holder 1, so that the optical axis can be adjusted relatively easily. it can.
  • the holder 1 and the substrate 6 are connected by the connecting screws 9a and 9b, but may be connected by another means.
  • the holder 1 and the urging member 7 may be coupled by means such as a rivet other than the coupling screws 8a and 8b.
  • the optical axis adjustment and the focus adjustment are performed after the substrate 6 is fixed to the holder 1, but the optical axis is adjusted while the position of the substrate 6 can be adjusted with respect to the holder 1. Adjustment and focus adjustment may be performed.
  • the assembly process can be simplified by adopting a configuration in which the optical axis adjustment and the focus adjustment can be performed while the substrate 6 is fixed to the holder 1.
  • the adjustment of the position of the lens barrel 2 in the optical axis direction is not necessarily performed by the groove 2b, and may be performed by another method.
  • the position of the lens barrel 2 in the optical axis direction may be adjusted using a movement restricting member such as a screw while urging the lens barrel 2 from one side in the optical axis direction.
  • the configuration extending to the X axis, the Y axis, and the Z axis is not necessarily completely horizontal with the X axis, the Y axis, and the Z axis, and may have a predetermined angle with respect to each axis.
  • the first through hole 1b and the second through hole 1c do not necessarily extend horizontally in the X axis direction, and may extend in a direction having a predetermined angle with respect to the X axis.
  • the image pickup apparatus of the present invention is particularly useful as an in-vehicle image pickup apparatus mounted on an automobile or the like that needs to adjust an optical axis with high accuracy.
  • the present invention is suitably used as an in-vehicle imaging device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

Selon la présente invention, un dispositif d'imagerie comprend : un substrat sur lequel une unité d'imagerie est montée ; un barillet de lentille maintenant une lentille ; un support maintenant le barillet de lentille et étant relié au substrat ; un premier élément de support disposé entre le support et le barillet de lentille et venant en contact avec le barillet de lentille sur un premier plan s'étendant dans une direction horizontale par rapport à l'axe optique ; un second élément de support disposé entre le support et le barillet de lentille et venant en contact avec le barillet de lentille sur un second plan s'étendant dans une direction horizontale par rapport à l'axe optique ; et un élément de poussée qui pousse le barillet de lentille sur le premier élément de support et le second élément de support. Le premier plan et le second plan s'étendent dans des directions différentes.
PCT/JP2018/000900 2017-01-23 2018-01-16 Dispositif d'imagerie WO2018135454A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880007544.7A CN110199213A (zh) 2017-01-23 2018-01-16 拍摄装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-009481 2017-01-23
JP2017009481A JP2018120020A (ja) 2017-01-23 2017-01-23 撮像装置

Publications (1)

Publication Number Publication Date
WO2018135454A1 true WO2018135454A1 (fr) 2018-07-26

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PCT/JP2018/000900 WO2018135454A1 (fr) 2017-01-23 2018-01-16 Dispositif d'imagerie

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JP (1) JP2018120020A (fr)
CN (1) CN110199213A (fr)
WO (1) WO2018135454A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7663413B2 (ja) 2021-05-27 2025-04-16 ニデックプレシジョン株式会社 撮像装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476747U (fr) * 1977-11-11 1979-05-31
JPH03168715A (ja) * 1989-11-29 1991-07-22 Ricoh Kogaku Kk 光走査装置における結像レンズ保持装置
JP2004286966A (ja) * 2003-03-20 2004-10-14 Oyokoden Lab Co Ltd レンズ固定装置及びその製造方法
JP2006088569A (ja) * 2004-09-24 2006-04-06 Fuji Xerox Co Ltd 光源装置、光走査装置、光源装置の調整方法及び、光走査装置の調整方法
JP2013061513A (ja) * 2011-09-14 2013-04-04 Ricoh Co Ltd レンズ鏡胴
EP2816386A1 (fr) * 2013-06-19 2014-12-24 Trumpf Laser Marking Systems AG Procédé de collage d'un élément optique à un corps de base

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5791404B2 (ja) * 2011-07-12 2015-10-07 キヤノン株式会社 レンズ鏡筒およびそれを有する撮像装置
CN105721764B (zh) * 2014-12-17 2019-03-15 日本电产科宝株式会社 车载用图像识别装置以及其制造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476747U (fr) * 1977-11-11 1979-05-31
JPH03168715A (ja) * 1989-11-29 1991-07-22 Ricoh Kogaku Kk 光走査装置における結像レンズ保持装置
JP2004286966A (ja) * 2003-03-20 2004-10-14 Oyokoden Lab Co Ltd レンズ固定装置及びその製造方法
JP2006088569A (ja) * 2004-09-24 2006-04-06 Fuji Xerox Co Ltd 光源装置、光走査装置、光源装置の調整方法及び、光走査装置の調整方法
JP2013061513A (ja) * 2011-09-14 2013-04-04 Ricoh Co Ltd レンズ鏡胴
EP2816386A1 (fr) * 2013-06-19 2014-12-24 Trumpf Laser Marking Systems AG Procédé de collage d'un élément optique à un corps de base

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CN110199213A (zh) 2019-09-03
JP2018120020A (ja) 2018-08-02

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