[go: up one dir, main page]

WO2018176612A1 - 一种非远心dlp微型投影模组 - Google Patents

一种非远心dlp微型投影模组 Download PDF

Info

Publication number
WO2018176612A1
WO2018176612A1 PCT/CN2017/085728 CN2017085728W WO2018176612A1 WO 2018176612 A1 WO2018176612 A1 WO 2018176612A1 CN 2017085728 W CN2017085728 W CN 2017085728W WO 2018176612 A1 WO2018176612 A1 WO 2018176612A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
lens
light
display chip
illumination
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/085728
Other languages
English (en)
French (fr)
Inventor
高志强
杨伟樑
赵远
林清云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iview Displays Shenzhen Co Ltd
Original Assignee
Iview Displays Shenzhen Co Ltd
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 Iview Displays Shenzhen Co Ltd filed Critical Iview Displays Shenzhen Co Ltd
Publication of WO2018176612A1 publication Critical patent/WO2018176612A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • 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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • 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
    • G03B21/208—Homogenising, shaping of the illumination light

Definitions

  • the invention relates to the field of digital projection display technology, in particular to a non-telecentric DLP micro projection module.
  • the optical component - the illumination prism (TIR prism or RTIR prism) is used to compensate the DMD illumination source to form a telecentric optical path for matching the incident light and the reflected light required by the DMD chip.
  • TIR prism or RTIR prism In order to enable the light path conversion device to transmit light to the illumination prism smoothly, it is necessary to separately set a plane mirror or other optical components to change the direction of the beam. Due to the large volume of the illumination prism itself, plus the setting of the plane mirror, the increase is increasing.
  • the optical component further increases the size of the existing DLP pico projector, which further reduces the size of the existing DLP pico projector to facilitate carrying. Therefore, the design is simple and efficient.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

一种非远心DLP微型投影模组，包括：照明光源；分色镜片组；复眼透镜（106）；非对称自由曲面透镜（108）；DMD显示芯片（109）以及投影镜头（110）。非对称自由曲面透镜（108）用于汇聚引导来自复眼透镜（106）的照明光束（a1）入射至DMD显示芯片（109），且用于接收汇聚从DMD显示芯片（109）反射的投影光束（a2）并将投影光束（a2）引导至投影镜头（110）；投影光束（a2）为不平行光束，从投影镜头（110）中心光轴（L）的一侧面入射，然后从投影镜头（110）中心光轴（L）的另一侧面出射；DMD显示芯片（109）的短边和投影镜头（110）的中心光轴（L）垂直。使用非对称自由曲面透镜（108）代替常规设计的照明棱镜和反射镜，尺寸小、重量轻、光程短、损耗低。

Description

一种非远心DLP微型投影模组 技术领域
本发明涉及数字投影显示技术领域，特别涉及一种非远心DLP微型投影模组。
背景技术
随着半导体技术的发展，便携式电子产品日趋多样化，使得微型投影机的需求越来越大。而DLP微型投影机要得到广泛应用，就要进一步提高照明系统性能和进一步减小投影系统尺寸和重量，保证其具有高投影品质的同时更便于携带。
现有DLP微型投影机中，采用光学元件——照明棱镜(TIR棱镜或者RTIR棱镜)对DMD照明光源进行补偿，形成远心光路，用以匹配DMD芯片所需要的入射光线和反射光线。为了使光路转换装置透射光能够顺利入射到照明棱镜，需要单独设置平面反射镜或者其他的光学元件来改变光束的方向，由于照明棱镜本身体积较大，再加上平面反射镜的设置，在增加光学元件的基础上又增大了现有DLP微型投影机的体积，给现有DLP微型投影机进一步减小体积以便于携带带来了障碍。因此，设计简洁高效，

Claims (1)

  1. 尺寸小、重量轻、低的光损耗的DLP投影模组是投影行业的研究方向与重点。
    公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
    发明内容
    本发明主要解决的技术问题是提供一种无需采用照明棱镜，设计简洁、尺寸小、重量轻、光损耗低且为非远心设计的DLP微型投影模组。
    为解决上述技术问题，本发明采用的一个技术方案是：提供一种非远心DLP微型投影模组，包括：产生三基色光束的照明光源；将来自照明光源的三基色光束进行合光形成白光照明光束的分色镜片组；将白光照明光束转换为均匀的面光束的复眼透镜；非对称自由曲面透镜；DMD显示芯片；以及投影镜头；所述非对称自由曲面透镜，用于汇聚引导来自复眼透镜的照明光束入射至DMD显示芯片，且用于接收汇聚从DMD显示芯片反射出射的投影光束并将投影光束引导至投影镜头；所述投影光束为不平行光束，所述投影光束中的投影主光束与投影镜头中心光轴不共轴；投影主光束从投影镜头中心光轴的一侧面入射，然后从投影镜头中心光轴的另一侧面出射；所述DMD显示芯片的短边和投影镜头的中心光轴垂直。
PCT/CN2017/085728 2017-03-28 2017-05-24 一种非远心dlp微型投影模组 Ceased WO2018176612A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710190610.6 2017-03-28
CN201710190610.6A CN106842794A (zh) 2017-03-28 2017-03-28 一种非远心dlp微型投影模组

Publications (1)

Publication Number Publication Date
WO2018176612A1 true WO2018176612A1 (zh) 2018-10-04

Family

ID=59130011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/085728 Ceased WO2018176612A1 (zh) 2017-03-28 2017-05-24 一种非远心dlp微型投影模组

Country Status (2)

Country Link
CN (1) CN106842794A (zh)
WO (1) WO2018176612A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115167067B (zh) * 2022-05-30 2025-03-14 歌尔光学科技有限公司 一种投影系统以及头戴设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003149599A (ja) * 2001-11-15 2003-05-21 Casio Comput Co Ltd 投影型表示装置
CN1781051A (zh) * 2003-08-27 2006-05-31 卡西欧计算机株式会社 投影显示系统
CN101441318A (zh) * 2001-10-01 2009-05-27 松下电器产业株式会社 投射式显示装置
CN102508402A (zh) * 2011-11-23 2012-06-20 苏州佳世达光电有限公司 投影装置
CN203811977U (zh) * 2014-04-30 2014-09-03 广景科技有限公司 Dlp微型投影机
CN203811978U (zh) * 2014-05-15 2014-09-03 广景科技有限公司 Dlp 微型投影机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3279265B2 (ja) * 1998-03-26 2002-04-30 株式会社エム・アール・システム研究所 画像表示装置
CN201307184Y (zh) * 2008-09-16 2009-09-09 贾怀昌 一种由三个自由曲面构成的目镜光学元件
US20120081800A1 (en) * 2009-04-20 2012-04-05 Dewen Cheng Optical see-through free-form head-mounted display
CN202049326U (zh) * 2010-12-23 2011-11-23 利达光电股份有限公司 基于平面型led光源的dlp投影光学系统
TWI427323B (zh) * 2011-02-18 2014-02-21 Young Optics Inc 投影鏡頭與投影裝置
CN103529629B (zh) * 2012-08-30 2015-12-16 广景科技有限公司 Dlp微型投影机
CN103217798A (zh) * 2013-04-16 2013-07-24 上海晟立电子科技有限公司 基于非远心光路的数字投影装置
CN203275779U (zh) * 2013-04-28 2013-11-06 贾怀昌 一种基于rgb面光源的lcos微型显示器光学系统
JP6361115B2 (ja) * 2013-11-15 2018-07-25 株式会社リコー 投射用レンズおよび画像表示装置
CN104216206B (zh) * 2014-08-20 2016-05-11 苏州佳世达光电有限公司 投影系统
CN204883152U (zh) * 2015-08-03 2015-12-16 广景视睿科技（深圳）有限公司 Dlp微型投影机
CN206649273U (zh) * 2017-03-28 2017-11-17 广景视睿科技（深圳）有限公司 一种非远心dlp微型投影模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101441318A (zh) * 2001-10-01 2009-05-27 松下电器产业株式会社 投射式显示装置
JP2003149599A (ja) * 2001-11-15 2003-05-21 Casio Comput Co Ltd 投影型表示装置
CN1781051A (zh) * 2003-08-27 2006-05-31 卡西欧计算机株式会社 投影显示系统
CN102508402A (zh) * 2011-11-23 2012-06-20 苏州佳世达光电有限公司 投影装置
CN203811977U (zh) * 2014-04-30 2014-09-03 广景科技有限公司 Dlp微型投影机
CN203811978U (zh) * 2014-05-15 2014-09-03 广景科技有限公司 Dlp 微型投影机

Also Published As

Publication number Publication date
CN106842794A (zh) 2017-06-13

Similar Documents

Publication Publication Date Title
WO2015172536A1 (zh) 直线型dlp微型投影机
WO2016095619A1 (zh) 直线型dlp微型投影机
CN104937487B (zh) 投影型显示装置
WO2015172537A1 (zh) Dlp微型投影机
WO2017049935A1 (zh) 一种投影照明光路及其投影模组
WO2013053171A1 (zh) Dlp微型投影机及其投影方法
CN106154716A (zh) 照明系统与投影装置
US9568165B2 (en) Illumination system and projection apparatus with same
JP5363061B2 (ja) 単板投写型表示装置
WO2018000520A1 (zh) 一种dlp投影模组
CN102799055A (zh) 不具有中继透镜的图像投影设备
WO2017020636A1 (zh) Dlp微型投影机
US10630945B2 (en) Projection device and light engine module
US20160295181A1 (en) Dlp pico-projector
WO2017012220A1 (zh) 一种紧凑型投影装置
TW200841114A (en) Color-mixing laser module and projectors using the same
WO2019104915A1 (zh) 一种投影系统及tir棱镜组
WO2018176613A1 (zh) 一种红外投影系统
CN205121146U (zh) 一种新型照明系统及运用该系统的投影光引擎
WO2013063835A1 (zh) Dlp微型投影机
CN102012616A (zh) 多路绿光光源投影机光学引擎
US11513340B2 (en) Projector
WO2019104970A1 (zh) 一种rtir光学元件组及其投影系统
JP2015227998A (ja) 照明光学系およびこれを用いた画像表示装置
CN203982065U (zh) Dlp 微型投影机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17902975

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17902975

Country of ref document: EP

Kind code of ref document: A1