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)
  • Optical Couplings Of Light Guides (AREA)
  • Liquid Crystal (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
US11163056B2 (en) * 2015-12-10 2021-11-02 Raytelligence 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
EP3491288B1 (en) 2016-07-26 2024-11-06 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
JP6971324B2 (ja) 2017-03-31 2021-11-24 レイア、インコーポレイテッドLeia Inc. バックライト、マルチビューディスプレイ、およびテーパ付きコリメータを使用する方法
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
EP3867694B1 (en) 2018-10-15 2024-06-26 LEIA Inc. Backlight, multiview display and method having a grating spreader
US11137534B2 (en) 2019-06-26 2021-10-05 Synaptics Incorporated Systems and methods for optical imaging based on diffraction gratings
CN115917402A (zh) * 2020-03-02 2023-04-04 镭亚股份有限公司 动画静态多视图显示器和方法
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
ATE491966T1 (de) * 2000-12-21 2011-01-15 Light Prescriptions Innovators Lichtleitung mit radialer lichtauswurfsstruktur
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
EP1794490B1 (en) * 2004-09-20 2014-08-27 Koninklijke Philips N.V. Led collimator element with a semiparabolic reflector
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
CA2688214A1 (en) * 2007-05-11 2008-11-20 Rpo Pty Limited A transmissive body
WO2009011122A1 (ja) * 2007-07-17 2009-01-22 Panasonic Corporation 液晶バックライト装置及び液晶ディスプレイ
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
BRPI0918865A2 (pt) * 2008-09-19 2017-03-21 Univ California sistema e método para captação de energia solar e método de fabricação relacionado
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
WO2014142851A1 (en) 2013-03-13 2014-09-18 Hewlett-Packard Development Company, L.P. Backlight having collimating reflector
PT2938919T (pt) * 2013-07-30 2019-01-21 Leia Inc Retroiluminação à base de rede de difração multifeixe
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
JP6962521B2 (ja) * 2014-06-26 2021-11-05 リアルディー スパーク エルエルシー 指向性プライバシーディスプレイ
CN107636502B (zh) * 2015-04-13 2021-08-10 瑞尔D斯帕克有限责任公司 广角成像定向背光源
WO2016191598A1 (en) * 2015-05-27 2016-12-01 Reald Inc. Wide angle imaging directional backlights

Also Published As

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

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