GB9416666D0 - Illumination apparatus - Google Patents

Illumination apparatus

Info

Publication number
GB9416666D0
GB9416666D0 GB9416666A GB9416666A GB9416666D0 GB 9416666 D0 GB9416666 D0 GB 9416666D0 GB 9416666 A GB9416666 A GB 9416666A GB 9416666 A GB9416666 A GB 9416666A GB 9416666 D0 GB9416666 D0 GB 9416666D0
Authority
GB
United Kingdom
Prior art keywords
illumination apparatus
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.)
Withdrawn
Application number
GB9416666A
Other versions
GB2281802A (en
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.)
Simrad Stowe Ltd
Original Assignee
Simrad Stowe 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 Simrad Stowe Ltd filed Critical Simrad Stowe Ltd
Publication of GB9416666D0 publication Critical patent/GB9416666D0/en
Publication of GB2281802A publication Critical patent/GB2281802A/en
Withdrawn legal-status Critical Current

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
    • G02B6/0035—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
    • G02B6/0035—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
GB9416666A 1993-08-17 1994-08-17 Illumination apparatus Withdrawn GB2281802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939317086A GB9317086D0 (en) 1993-08-17 1993-08-17 Planar illumination apparatus

Publications (2)

Publication Number Publication Date
GB9416666D0 true GB9416666D0 (en) 1994-10-12
GB2281802A GB2281802A (en) 1995-03-15

Family

ID=10740618

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939317086A Pending GB9317086D0 (en) 1993-08-17 1993-08-17 Planar illumination apparatus
GB9416666A Withdrawn GB2281802A (en) 1993-08-17 1994-08-17 Illumination apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939317086A Pending GB9317086D0 (en) 1993-08-17 1993-08-17 Planar illumination apparatus

Country Status (1)

Country Link
GB (2) GB9317086D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7108414B2 (en) 1995-06-27 2006-09-19 Solid State Opto Limited Light emitting panel assemblies
US5969747A (en) * 1995-12-19 1999-10-19 Polaroid Corporation Efficient LED light geometry for optical printers
CN1126001C (en) * 1997-02-13 2003-10-29 联合讯号公司 Illumination system with light recycling to enhance brightness
EP0879991A3 (en) 1997-05-13 1999-04-21 Matsushita Electric Industrial Co., Ltd. Illuminating system
JP2005135899A (en) * 2003-10-06 2005-05-26 Omron Corp Surface light source apparatus and display apparatus
WO2009068285A1 (en) * 2007-11-27 2009-06-04 Johnson Controls Gmbh Optical arrangement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487481A (en) * 1980-03-24 1984-12-11 Epson Corporation Backlighted liquid crystal display
JPS6229003A (en) * 1985-07-30 1987-02-07 株式会社トキメック Back reflection type light diffuser
US5130898A (en) * 1989-05-18 1992-07-14 Seiko Epson Corporation Background lighting apparatus for liquid crystal display
JP2620981B2 (en) * 1989-09-30 1997-06-18 株式会社 明拓システム Edge light panel for LCD backlight
JP2640578B2 (en) * 1991-02-27 1997-08-13 シャープ株式会社 LCD lighting system
GB2267378B (en) * 1992-05-22 1996-07-10 Nokia Mobile Phones Uk Illuminated LCD apparatus

Also Published As

Publication number Publication date
GB2281802A (en) 1995-03-15
GB9317086D0 (en) 1993-09-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)