CA2991923C - Dual-direction collimator - Google Patents

Dual-direction collimator Download PDF

Info

Publication number
CA2991923C
CA2991923C CA2991923A CA2991923A CA2991923C CA 2991923 C CA2991923 C CA 2991923C CA 2991923 A CA2991923 A CA 2991923A CA 2991923 A CA2991923 A CA 2991923A CA 2991923 C CA2991923 C CA 2991923C
Authority
CA
Canada
Prior art keywords
light
collimator
dual
optical
horizontal
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.)
Active
Application number
CA2991923A
Other languages
English (en)
French (fr)
Other versions
CA2991923A1 (en
Inventor
David A. Fattal
Ming Ma
Xuejian Li
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.)
Leia Inc
Original Assignee
Leia Inc
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 Leia Inc filed Critical Leia Inc
Publication of CA2991923A1 publication Critical patent/CA2991923A1/en
Application granted granted Critical
Publication of CA2991923C publication Critical patent/CA2991923C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/30—Collimators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
CA2991923A 2015-09-05 2015-10-20 Dual-direction collimator Active CA2991923C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562214978P 2015-09-05 2015-09-05
US62/214,978 2015-09-05
PCT/US2015/056529 WO2017039725A1 (en) 2015-09-05 2015-10-20 Dual-direction collimator

Publications (2)

Publication Number Publication Date
CA2991923A1 CA2991923A1 (en) 2017-03-09
CA2991923C true CA2991923C (en) 2022-11-01

Family

ID=58188550

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2991923A Active CA2991923C (en) 2015-09-05 2015-10-20 Dual-direction collimator

Country Status (7)

Country Link
US (1) US10725226B2 (enExample)
EP (1) EP3345041B1 (enExample)
JP (1) JP6698822B2 (enExample)
KR (1) KR102235966B1 (enExample)
CN (1) CN107924063B (enExample)
CA (1) CA2991923C (enExample)
WO (1) WO2017039725A1 (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9829614B2 (en) 2015-02-02 2017-11-28 Synaptics Incorporated Optical sensor using collimator
KR102335719B1 (ko) 2015-09-05 2021-12-06 레이아 인코포레이티드 시간-다중화된 백라이트 및 이를 사용한 멀티뷰 디스플레이
WO2017099661A1 (en) * 2015-12-10 2017-06-15 Swedish Adrenaline Ab Radar detector for monitoring of bodily functions
FR3046850B1 (fr) 2016-01-15 2018-01-26 Universite De Strasbourg Guide optique ameliore et systeme optique comportant un tel guide optique
CA3027156C (en) 2016-07-26 2021-05-25 Leia Inc. Bar collimator, backlight system and method
US20180205924A1 (en) * 2017-01-19 2018-07-19 Yi Le Display assembly and electronic display apparatus for the application thereof
WO2018182743A1 (en) 2017-03-31 2018-10-04 Leia Inc. Backlight, multiview display and method employing tapered collimator
WO2019168538A1 (en) * 2018-03-01 2019-09-06 Leia Inc. Static multiview display and method employing collimated guided light
EP3837579B1 (en) 2018-08-13 2024-05-22 LEIA Inc. Grating collimator, backlight system, and method employing a light-recycling light source
KR20210060643A (ko) 2018-10-15 2021-05-26 레이아 인코포레이티드 격자 확산체를 갖는 백라이트, 멀티뷰 디스플레이 및 방법
US11137534B2 (en) 2019-06-26 2021-10-05 Synaptics Incorporated Systems and methods for optical imaging based on diffraction gratings
WO2021178256A1 (en) * 2020-03-02 2021-09-10 Leia Inc. Animated static multiview display and method
US12372709B2 (en) * 2023-01-31 2025-07-29 Visteon Global Technologies, Inc. Display backlight for avoiding windshield reflections

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081667A (en) * 1976-07-28 1978-03-28 Optical Coating Laboratory, Inc. Lighting fixture having fresnel reflector with high reflection coating thereon
US4755826A (en) * 1983-01-10 1988-07-05 The United States Of America As Represented By The Secretary Of The Navy Bicollimated offset Gregorian dual reflector antenna system
US4784700A (en) * 1987-05-26 1988-11-15 General Dynamics Corp./Space Systems Div. Point focus solar concentrator using reflector strips of various geometries to form primary and secondary reflectors
US5896237A (en) * 1994-07-22 1999-04-20 Mcdonnell Douglas Corporation Sensor assembly with dual reflectors to offset sensor
EP1356328B8 (en) * 2000-12-21 2011-02-02 Light Prescriptions Innovators, LLC. Light conduit with radial light ejecting structure
US6663262B2 (en) * 2001-09-10 2003-12-16 3M Innovative Properties Company Backlighting transmissive displays
US20040240034A1 (en) * 2001-11-30 2004-12-02 Scharf Bruce R. Diffraction compensation using a patterned reflector
JP2005011539A (ja) * 2003-06-16 2005-01-13 Nagano Kogaku Kenkyusho:Kk 面光源装置
KR101228847B1 (ko) * 2004-09-20 2013-02-01 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Ｌｅｄ 조명 장치 및 전조등 시스템
JP4436752B2 (ja) * 2004-12-22 2010-03-24 シャープ株式会社 光源装置および液晶表示装置
KR100754400B1 (ko) * 2006-04-21 2007-08-31 삼성전자주식회사 백라이트 유닛 및 이를 채용한 디스플레이 장치
KR20100019997A (ko) * 2007-05-11 2010-02-19 알피오 피티와이 리미티드 투과형 몸체
US8416363B2 (en) * 2007-07-17 2013-04-09 Panasonic Corporation Liquid crystal display backlight device and liquid crystal display
US8297786B2 (en) * 2008-07-10 2012-10-30 Oree, Inc. Slim waveguide coupling apparatus and method
KR101286095B1 (ko) 2008-09-11 2013-07-15 엘지디스플레이 주식회사 액정표시장치용 일체형 멀티집광시트
US9274266B2 (en) * 2008-09-19 2016-03-01 The Regents Of The University Of California System and method for solar energy capture and related method of manufacturing
WO2010141388A1 (en) * 2009-06-01 2010-12-09 Qualcomm Mems Technologies, Inc. Front light based optical touch screen
US8851707B2 (en) 2010-06-15 2014-10-07 Dialight Corporation Highly collimating reflector lens optic and light emitting diodes
US10534114B2 (en) * 2010-12-31 2020-01-14 Luminit LLC. Substrate-guided holographic diffuser
CN102588845B (zh) * 2012-03-07 2014-07-16 苏州大学 背光照明装置及液晶显示装置
US9188731B2 (en) 2012-05-18 2015-11-17 Reald Inc. Directional backlight
US8971680B2 (en) 2012-05-22 2015-03-03 Sharp Laboratories Of America, Inc. Waveguide with Controlled Light Collimation
US8915635B2 (en) * 2013-03-13 2014-12-23 Hewlett-Packard Development Company, L.P. Backlight having dual collimating reflectors
US20160018582A1 (en) * 2013-03-13 2016-01-21 Hewlett-Packard Development Company, L.P. Backlight having collimating reflector
KR101660911B1 (ko) * 2013-07-30 2016-09-28 레이아 인코포레이티드 다중빔 회절 격자-기반의 백라이트
US9442279B2 (en) * 2013-08-23 2016-09-13 Jeffrey Michael Citron Open architecture structure for trough shaped solar concentrators
US10048647B2 (en) * 2014-03-27 2018-08-14 Microsoft Technology Licensing, Llc Optical waveguide including spatially-varying volume hologram
CN106662773B (zh) * 2014-06-26 2021-08-06 瑞尔D 斯帕克有限责任公司 定向防窥显示器
US10459152B2 (en) * 2015-04-13 2019-10-29 Reald Spark, Llc Wide angle imaging directional backlights
CN107850804B (zh) * 2015-05-27 2021-06-11 瑞尔D斯帕克有限责任公司 广角成像定向背光源

Also Published As

Publication number Publication date
EP3345041A1 (en) 2018-07-11
EP3345041C0 (en) 2025-06-25
EP3345041B1 (en) 2025-06-25
KR20180048565A (ko) 2018-05-10
US10725226B2 (en) 2020-07-28
CN107924063A (zh) 2018-04-17
CN107924063B (zh) 2021-01-15
KR102235966B1 (ko) 2021-04-05
JP6698822B2 (ja) 2020-05-27
US20180164489A1 (en) 2018-06-14
CA2991923A1 (en) 2017-03-09
JP2018534600A (ja) 2018-11-22
WO2017039725A1 (en) 2017-03-09
EP3345041A4 (en) 2019-08-07

Similar Documents

Publication Publication Date Title
US10725226B2 (en) Dual-direction collimator
US10459147B2 (en) Dual surface collimator and 3D electronic display employing grating-based backlighting using same
US10345505B2 (en) Multibeam diffraction grating-based color backlighting
US20210132281A1 (en) Polychromatic grating-coupled multibeam diffraction grating backlight, display and method
EP3175267B1 (en) Multibeam diffraction grating-based color backlighting
EP3243093B1 (en) Diffraction grating-based backlighting having controlled diffractive coupling efficiency
EP3292432A1 (en) Dual light guide grating-based backlight and electronic display using same
KR20180121513A (ko) 반사 격자 아일랜드들을 사용하는 격자-기반 배면광장치
JP2022504643A (ja) 格子スプレッダを有するバックライト、マルチビューディスプレイ、および方法
TWI618957B (zh) 雙向光學準直器以及使用該雙向光學準直器的方法、背光板以及三維電子顯示器
HK1249932A1 (en) Dual-direction collimator
HK1249932B (zh) 双向准直器
HK1249931A1 (en) Dual surface collimator and 3d electronic display employing grating-based backlighting using same
HK1249931B (zh) 双表面准直器以及使用它的采用基於光栅的背光照明的3d电子显示器

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20191007

EEER Examination request

Effective date: 20191007

EEER Examination request

Effective date: 20191007