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WO2018000520A1 - Module de projection dlp - Google Patents

Module de projection dlp Download PDF

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Publication number
WO2018000520A1
WO2018000520A1 PCT/CN2016/093425 CN2016093425W WO2018000520A1 WO 2018000520 A1 WO2018000520 A1 WO 2018000520A1 CN 2016093425 W CN2016093425 W CN 2016093425W WO 2018000520 A1 WO2018000520 A1 WO 2018000520A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
accommodating cavity
dlp
angle
projection module
Prior art date
Application number
PCT/CN2016/093425
Other languages
English (en)
Chinese (zh)
Inventor
高志强
赵远
梅良
林清云
Original Assignee
广景视睿科技（深圳）有限公司
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 广景视睿科技（深圳）有限公司 filed Critical 广景视睿科技（深圳）有限公司
Publication of WO2018000520A1 publication Critical patent/WO2018000520A1/fr

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    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Definitions

  • the present invention relates to the field of digital projection display technology, and more particularly to a DLP projection module.
  • portable electronic devices With the development of science and technology, especially the promotion of semiconductor technology, portable electronic devices are constantly being designed and manufactured.
  • the enhancement of the functions of portable electronic devices has made users' requirements for display devices of human-machine interfaces more and more oriented toward micro, large screen and high resolution.
  • projector technology has developed rapidly in recent years.
  • DLP, LCOS and other products have launched portable projectors with high performance, small size and light weight.
  • the volume of projection display products is continuously decreasing, and the brightness is also required to be continuously improved.
  • projection display light source is a very important component.
  • the function of the DLP projection module is to convert as much as possible the large-angle distribution of the beam, the illumination light of different shapes and brightness, into a uniform spot that illuminates the effective area of the display chip, and realize a uniform and bright projection display. .
  • the user can enjoy a better visual enjoyment.
  • the invention Under the premise of keeping the design of the projection optical path simple and efficient, the invention has the advantages of small size, low optical loss and enhanced light intensity for high light output. This also becomes one of the technical problems to be solved by those skilled in the art.
  • an object of the present invention is to provide a DLP projection module that has a simple and reasonable structure, a compact layout, high brightness, and good projection quality.
  • a DLP projection module comprising: a projection illumination system comprising: an LED light source, a light source collimation system, a spectroscopic lens group, and a fly-eye lens or a light bar; an optical path guiding system; DMD a light modulator; a projection lens group; an accommodating cavity extending in two different directions for sequentially packaging the optical element; and a heat dissipation module; wherein the light path guiding system includes illumination for the projection illumination system
  • the light beam is directed to the prism element of the DMD light modulator; the shorter side of the DMD light modulator is parallel to the exit direction of the projection beam of the projection lens group; and the angle between the two extending directions of the receiving cavity It is 90-110 degrees.
  • the accommodating cavity is integrally provided.
  • the accommodating cavity comprises an optical component mounting base and a sealing cover that cooperate with each other to form a cavity.
  • the accommodating cavity includes a first accommodating cavity and a second accommodating cavity which are connected to each other, and the first accommodating cavity is connected to the second accommodating cavity
  • the angle between the two extending directions is 90-110 degrees.
  • the first accommodating cavity includes a first optical component mounting base and a first sealing cover that cooperate with each other to form a cavity
  • the second accommodating cavity includes a cavity to form a cavity.
  • the angle between the two extending directions after the first optical component mounting base and the second optical component mounting base are connected to each other is 90-110 degrees;
  • the angle between the two extending directions after the first sealing cover and the second sealing cover are connected to each other is 90-110 degrees.
  • the prism element comprises a right angle prism or a glued right angle Prism group.
  • the right-angle prism or the glued right-angle prism group has a surface that totally reflects the incident light beam or/and an optical surface plated with the reflective film.
  • the angle between the illumination beam exiting direction of the projection illumination system and the projection beam exiting direction of the projection lens group is between 90° and 110°.
  • the optical path guiding system further comprises a free-form lens or a spherical lens that can converge and guide the illumination beam.
  • the free curved surface of the free-form optical component is described by:
  • Z is the height of the surface
  • X and Y are the projection coordinates of the height of the surface on the optical axis
  • A1 to A9 are positional parameters
  • C and k are curvature parameters.
  • the heat dissipating module manufacturing material is metal aluminum or metal copper, and is connected to the accommodating cavity through a connecting member; the heat dissipating module shape and the accommodating cavity of the DLP pico projector system.
  • the outer part of the structure shape matches.
  • the accommodating cavity is prepared by using a plastic material or a metal material.
  • the heat dissipating module is made of metal aluminum or metal copper, and is connected with the accommodating cavity by a screw structure or a screw structure or a fixed riveting structure or a bonding structure;
  • the hollow cylindrical structure or the rectangular parallelepiped structure matches the shape of the accommodating cavity structure of the DLP micro projector system, so that the heat dissipation module and the accommodating cavity are tight fit.
  • the DLP projection module includes: a projection illumination system, including: an LED light source, a light source collimation system, a spectroscopic lens group, and a fly-eye lens or a light bar; a DMD light modulator; a projection lens group; an accommodating cavity for sequentially packaging the optical component; and a heat dissipation module; wherein the optical path guiding system comprises a right-angle prism or a glued right-angle prism group for The illumination beam of the projection illumination system is directed to the DMD light modulator; the wide side of the DMD light modulator is parallel to the exit direction of the projection beam of the projection lens group; the receiving cavity extends in two different directions to be similar to L Type structure.
  • the DLP projection module has a simple and reasonable structure and a compact layout.
  • the optical path guiding system omits the use of the mirror, greatly enhances the brightness of the projection illumination, and improves the projection quality.
  • FIG. 1 is a schematic structural view of an embodiment of a DLP projection module of the present invention
  • FIG. 2 is a schematic structural view of a receiving cavity of an embodiment of the DLP projection module of the present invention
  • FIG 3 is a partial schematic structural view of an embodiment of a DLP projection module of the present invention.
  • FIG. 1 is a schematic structural view of an embodiment of a DLP projection module of the present invention
  • FIG. 2 is a schematic structural view of an accommodating cavity of an embodiment of the DLP projection module of the present invention
  • FIG. 3 is a DLP projection of the present invention
  • a DLP projection module includes: a projection illumination system 10 including: an LED light source and a light source collimation system a spectroscopic lens group and a fly-eye lens or a light bar; an optical path guiding system 20; a DMD light modulator 30; a projection lens group 40; and an accommodating cavity 50 for sequentially packaging the optical elements in two different directions; a heat dissipation module (not shown); wherein the optical path guiding system 20 includes prism elements for directing an illumination beam from the projection illumination system 10 to the DMD light modulator 30; the DMD light modulator 30 The aspect ratio is 16:9 or 4:3, and the shorter side 30a of the DMD light modulator 30 is parallel to the projection beam exit direction of the projection lens group 40.
  • the angle a between the two extending directions of the accommodating cavity 50 is 90-110 degrees.
  • the housing 50 can be integrally provided.
  • the accommodating cavity 50 may include an optical component mounting base and a sealing cover that cooperate to form a chamber.
  • the accommodating cavity 50 may include a first accommodating cavity and a second accommodating cavity, and the first accommodating cavity is connected to the second accommodating cavity.
  • the angle a between the two extending directions is 90-110 degrees, so that the entire receiving cavity 50 has an L-like structure.
  • the accommodating cavity 50 can also be configured as other types of structures as long as it can satisfy the projection illumination system; the optical path guiding system; the DMD light modulator; the projection lens group. Both are accommodated in the accommodating cavity 50, and the angle between the direction of the illumination beam from the projection illumination system and the direction of the projection beam exiting the projection lens group is between 90° and 110°.
  • the first accommodating cavity itself has a cavity with an angle a extending in two directions
  • the second accommodating cavity is a unidirectional cavity, which can be connected to the first accommodating cavity.
  • the angle a between the two extending directions after the first accommodating cavity and the second accommodating cavity are connected to each other is 90-110 degrees.
  • the second accommodating cavity itself has a cavity with an angle a extending in two directions, and the first accommodating cavity is a unidirectional cavity, which can be connected to the second accommodating cavity.
  • the first accommodating cavity and the second accommodating cavity are connected to each other
  • the angle a between the two extending directions is 90-110 degrees.
  • the prism elements are right angle prisms or glued right angle prism groups, and of course other types of prisms.
  • the first accommodating cavity may include a first optical component mounting base and a first sealing cover that cooperate to form a cavity
  • the second accommodating cavity may include a cavity to form a cavity
  • the second optical component mounts the base and the second sealing cover.
  • the angle between the two extending directions after the first optical component mounting base and the second optical component mounting base are connected to each other is 90-110 degrees.
  • the angle between the two extending directions after the first sealing cover and the second sealing cover are connected to each other is 90-110 degrees, so that the optical component mounting base and the sealing cover are similar to L Type structure.
  • first optical component mounting base and the second optical component mounting base may be integrally connected, and the first sealing cover and the second sealing cover are also integrally connected.
  • first optical component mounting base and the second optical component mounting base may be connected separately, and the first sealing cover and the second sealing cover are also separated.
  • first optical component mounting base and the second optical component mounting base may be integrally connected, and the first sealing cover and the second sealing cover are connected separately.
  • first optical component mounting base and the first sealing cover may be connected separately, and the second optical component mounting base and the second sealing cover may also be connected separately.
  • the accommodating cavity 50, the optical component mounting base, and the sealing cover can be provided with a component body or a joint body as needed.
  • the angle between the light exiting direction of the illumination beam from the projection illumination system 10 and the light exiting direction of the projection beam from the projection lens group 40 is between 90° and 110°.
  • the light exiting direction of the projection beam from the projection lens group 40 is parallel to the axis of the accommodating cavity, so that the light beam can be smoothly emitted out of the cavity. In this range of angles, the optical components can be easily fine-tuned under the premise of ensuring the projection quality of the DLP projection module.
  • the DLP projection module is substantially L without affecting the projection quality.
  • the optical path guiding system 20 further includes a free-form lens that can converge and guide the illumination beam from the projection illumination system.
  • the right-angle prism or the glued right-angle prism group and/or the free-form surface lens have a surface that totally reflects the incident light beam or/and an optical surface that is coated with a reflective film.
  • the free curved surface of the free-form optical component is described by:
  • Z is the height of the surface
  • X and Y are the projection coordinates of the height of the surface on the optical axis
  • A1 to A9 are positional parameters
  • C and k are curvature parameters.
  • the DLP projection module is basically arranged in an L-shape.
  • the beam guiding system 20 also omits a mirror to change the direction of the beam compared with the conventional projection module, and reduces The energy loss of the illumination beam.
  • the accommodating cavity can be prepared by using a plastic material or a metal material, and the plastic material preparation has the advantages of highly aligning the display chip and the projection lens and reducing the cost and weight of the projector; , can further solve the problem of heat dissipation of the projector optomechanical structure.
  • the optical component mounting base is made of a plastic material
  • the sealing cover is made of a metal material such as an aluminum alloy or a magnesium alloy.
  • the card slot and the light source mounting structure on the optical component mounting base can be modified according to the position and number of the mounted optical components, and the matching sealing cover can also be adjusted accordingly.
  • the split connection may be connected by a connector, and the connector may be a screw, a bolt or the like. It is also possible to realize the split connection by other means such as riveting, bonding, and fitting. Elastic rubber gaskets may be provided between the joints.
  • the heat dissipating module is made of metal aluminum or metal copper, and is connected to the accommodating cavity through a connecting member, and the connecting member may be a screw, a bolt or the like, or may be spliced and bonded.
  • the connecting member may be a screw, a bolt or the like, or may be spliced and bonded.
  • the shape of the heat dissipating module is matched with the partial structure and shape of the external part of the accommodating cavity structure of the DLP projection module, and may be a hollow cylindrical structure or a rectangular structure such as a rectangular parallelepiped structure.
  • the heat dissipation module is in close contact with the accommodating cavity.
  • the DLP projection module of the present invention comprises: a projection illumination system comprising: an LED light source, a light source collimation system, a spectroscopic lens group, and a fly-eye lens or a light bar; an optical path guiding system; a DMD light modulator; a projection lens group; An accommodating cavity for sequentially packaging the optical element; and a heat dissipation module; wherein the optical path guiding system comprises a right angle prism or a glued right angle prism group for guiding an illumination beam from the projection illumination system to the DMD light modulation
  • the DMD optical modulator has an aspect ratio of 16:9, and the wide side of the DMD optical modulator is parallel to the projection beam exiting direction of the projection lens group; the accommodating cavity has an L-like structure.
  • the DLP projection module has a simple and reasonable structure and a compact layout.
  • the optical path guiding system omits the use of the mirror, greatly enhances the brightness of the projection illumination, and improves the projection quality.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un module de projection DLP comprenant : un système d'éclairage par projection (10), qui comprend : une source de lumière à DEL, un système de collimation de source de lumière, un ensemble de lentilles de division de faisceau, et une tige de lumière ou lentille d'œil complexe; un système de guidage de trajet optique (20); un modulateur de lumière DMD (30); un ensemble de lentilles de projection (40); une cavité de réception (50) utilisée pour conditionner séquentiellement les éléments optiques décrits et s'étendre dans deux directions différentes; et un module de dissipation de chaleur. Le système de guidage de trajet optique (20) comprend un élément de prisme utilisé pour guider un faisceau d'éclairage provenant du système d'éclairage par projection (10) vers le modulateur de lumière DMD (30); le côté plus court (30a) du modulateur de lumière DMD (30) est parallèle à la direction dans laquelle un faisceau de projection sort de l'ensemble de lentilles de projection (40); et l'angle entre les deux directions, dans lesquelles la cavité de réception (50) s'étend, est compris entre 90 et 110 degrés. Le module de projection DLP a une structure simple et rationnelle et une disposition compacte, le système de guidage de trajet optique (20) permet d'éviter l'utilisation d'un miroir, ce qui augmente considérablement la luminosité d'éclairage par projection et augmente la qualité de projection.
PCT/CN2016/093425 2016-06-29 2016-08-05 Module de projection dlp WO2018000520A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620661686.3U CN205827039U (zh) 2016-06-29 2016-06-29 一种dlp投影模组
CN201620661686.3 2016-06-29

Publications (1)

Publication Number Publication Date
WO2018000520A1 true WO2018000520A1 (fr) 2018-01-04

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ID=57567269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/093425 WO2018000520A1 (fr) 2016-06-29 2016-08-05 Module de projection dlp

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CN (1) CN205827039U (fr)
WO (1) WO2018000520A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113820837A (zh) * 2021-11-19 2021-12-21 江西联创电子有限公司 广角镜头及其组装方法和全景影像镜头
CN113917769A (zh) * 2021-06-23 2022-01-11 深圳市安华光电技术有限公司 投影光机以及投影设备
CN114647141A (zh) * 2020-12-21 2022-06-21 深圳光峰科技股份有限公司 光机光源固定结构和投影机

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JP6738746B2 (ja) * 2017-01-30 2020-08-12 株式会社日立エルジーデータストレージ 映像投影装置
US10785459B2 (en) * 2018-01-19 2020-09-22 Texas Instruments Incorporated DLP color projector
CN110231751B (zh) 2018-03-05 2023-09-15 信泰光学(深圳)有限公司 投影装置及其光学模块
CN112433422B (zh) * 2020-08-18 2022-07-22 深圳市安华光电技术有限公司 一种光机
CN114076750B (zh) * 2020-08-20 2024-05-10 深圳华大智造科技股份有限公司 超分辨成像装置与方法、生物样品识别系统与识别方法
CN113075842B (zh) * 2020-12-23 2022-03-29 深圳市安华光电技术有限公司 一种投影光机
CN113075843B (zh) * 2020-12-23 2022-12-27 深圳市安华光电技术有限公司 一种投影光机及投影仪
CN112558387A (zh) * 2020-12-28 2021-03-26 江苏迪盛智能科技有限公司 一种投影光学装置
CN113281875B (zh) * 2021-02-07 2023-02-21 深圳市安华光电技术有限公司 光机及投影仪
CN113126413A (zh) * 2021-04-25 2021-07-16 熵智科技(深圳)有限公司 一种单色激光投影系统及3d相机
CN114706262B (zh) * 2021-12-15 2024-01-16 深圳市安华光电技术股份有限公司 一种投影光机及投影仪

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US20070058239A1 (en) * 2005-09-13 2007-03-15 Sekinos Co., Ltd. Projection lens unit
CN2896319Y (zh) * 2005-10-31 2007-05-02 南阳利达光电有限公司 数字投影光学引擎
CN103235471A (zh) * 2013-04-18 2013-08-07 深圳市长江力伟股份有限公司 Lcos投影光机
CN204331264U (zh) * 2015-01-19 2015-05-13 广景科技有限公司 Dlp微型投影机系统及其投影机模组
CN204856020U (zh) * 2015-07-22 2015-12-09 广景视睿科技（深圳）有限公司 一种紧凑型投影装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070058239A1 (en) * 2005-09-13 2007-03-15 Sekinos Co., Ltd. Projection lens unit
CN2896319Y (zh) * 2005-10-31 2007-05-02 南阳利达光电有限公司 数字投影光学引擎
CN103235471A (zh) * 2013-04-18 2013-08-07 深圳市长江力伟股份有限公司 Lcos投影光机
CN204331264U (zh) * 2015-01-19 2015-05-13 广景科技有限公司 Dlp微型投影机系统及其投影机模组
CN204856020U (zh) * 2015-07-22 2015-12-09 广景视睿科技（深圳）有限公司 一种紧凑型投影装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114647141A (zh) * 2020-12-21 2022-06-21 深圳光峰科技股份有限公司 光机光源固定结构和投影机
CN113917769A (zh) * 2021-06-23 2022-01-11 深圳市安华光电技术有限公司 投影光机以及投影设备
CN113917769B (zh) * 2021-06-23 2023-06-20 深圳市安华光电技术股份有限公司 投影光机以及投影设备
CN113820837A (zh) * 2021-11-19 2021-12-21 江西联创电子有限公司 广角镜头及其组装方法和全景影像镜头
CN113820837B (zh) * 2021-11-19 2022-05-10 江西联创电子有限公司 广角镜头及其组装方法和全景影像镜头

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