TW200604570A - Light guiding device with increased efficiency and the uniformity - Google Patents

Light guiding device with increased efficiency and the uniformity

Info

Publication number
TW200604570A
TW200604570A TW093121749A TW93121749A TW200604570A TW 200604570 A TW200604570 A TW 200604570A TW 093121749 A TW093121749 A TW 093121749A TW 93121749 A TW93121749 A TW 93121749A TW 200604570 A TW200604570 A TW 200604570A
Authority
TW
Taiwan
Prior art keywords
lights
pillar unit
unit
triangular
guiding device
Prior art date
Application number
TW093121749A
Other languages
English (en)
Other versions
TWI245925B (en
Inventor
Nai-Yuan Tang
Original Assignee
Asia Optical Co 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 Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to TW093121749A priority Critical patent/TWI245925B/zh
Priority to US11/005,324 priority patent/US7175332B2/en
Application granted granted Critical
Publication of TWI245925B publication Critical patent/TWI245925B/zh
Publication of TW200604570A publication Critical patent/TW200604570A/zh

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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—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
    • G02B6/0065—Manufacturing aspects; Material aspects
TW093121749A 2004-07-21 2004-07-21 Light guiding device with increased efficiency and the uniformity TWI245925B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW093121749A TWI245925B (en) 2004-07-21 2004-07-21 Light guiding device with increased efficiency and the uniformity
US11/005,324 US7175332B2 (en) 2004-07-21 2004-12-07 Light guide device having improved light efficiency and uniformity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW093121749A TWI245925B (en) 2004-07-21 2004-07-21 Light guiding device with increased efficiency and the uniformity

Publications (2)

Publication Number Publication Date
TWI245925B TWI245925B (en) 2005-12-21
TW200604570A true TW200604570A (en) 2006-02-01

Family

ID=35656927

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093121749A TWI245925B (en) 2004-07-21 2004-07-21 Light guiding device with increased efficiency and the uniformity

Country Status (2)

Country Link
US (1) US7175332B2 (zh)
TW (1) TWI245925B (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060187676A1 (en) * 2005-02-18 2006-08-24 Sharp Kabushiki Kaisha Light guide plate, light guide device, lighting device, light guide system, and drive circuit
US7280275B2 (en) * 2005-08-01 2007-10-09 Agilent Technologies, Inc. High efficiency beam distribution with independent wavefront correction
JP5224362B2 (ja) * 2008-11-18 2013-07-03 株式会社エンプラス 面光源装置、照明装置及び画像表示装置
US20120163022A1 (en) * 2009-06-11 2012-06-28 Koninklijke Philips Electronics N.V. Illumination apparatus
US20130271978A1 (en) * 2012-04-16 2013-10-17 Carl Gould Large-scale prism luminaires
TWI545296B (zh) * 2012-12-24 2016-08-11 鴻海精密工業股份有限公司 背光模組
TWI770234B (zh) * 2017-07-19 2022-07-11 以色列商魯姆斯有限公司 通過光導光學元件的矽基液晶照明器
US11899235B2 (en) 2018-12-05 2024-02-13 Elbit Systems Ltd. Display illumination optics
US11119343B2 (en) * 2019-05-20 2021-09-14 Facebook Technologies, Llc Optical waveguide beam splitter with polarization volume gratings for display
US11307347B2 (en) 2019-05-20 2022-04-19 Facebook Technologies, Llc Display illumination using a wedge waveguide
US11467332B2 (en) 2019-09-10 2022-10-11 Meta Platforms Technologies, Llc Display with switchable retarder array
US11391948B2 (en) 2019-09-10 2022-07-19 Facebook Technologies, Llc Display illumination using a grating
US11726336B2 (en) 2019-09-10 2023-08-15 Meta Platforms Technologies, Llc Active zonal display illumination using a chopped lightguide

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046826A (en) * 1987-09-19 1991-09-10 Canon Kabushiki Kaisha Illuminator and display panel employing the illuminator
US4798448A (en) * 1988-02-16 1989-01-17 General Electric Company High efficiency illumination system for display devices
US5390276A (en) * 1992-10-08 1995-02-14 Briteview Technologies Backlighting assembly utilizing microprisms and especially suitable for use with a liquid crystal display
JPH095739A (ja) * 1995-06-22 1997-01-10 Internatl Business Mach Corp <Ibm> 導光シ−ト及びその製造方法、及び前記導光シ−トを用いたバックライト及び前記バックライトを用いた液晶表示装置
US6104454A (en) * 1995-11-22 2000-08-15 Hitachi, Ltd Liquid crystal display
JPH1124587A (ja) * 1997-07-09 1999-01-29 Sekisui Chem Co Ltd 面状発光装置用導光体の製造方法
US5896232A (en) * 1997-08-07 1999-04-20 International Business Machines Corporation Highly efficient and compact frontlighting for polarization-based reflection light valves
WO2001095027A2 (en) * 2000-06-05 2001-12-13 Lumus Ltd. Substrate-guided optical beam expander

Also Published As

Publication number Publication date
US7175332B2 (en) 2007-02-13
TWI245925B (en) 2005-12-21
US20060018129A1 (en) 2006-01-26

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees