TW351801B - Surface light source and asymmetric prism sheet - Google Patents

Surface light source and asymmetric prism sheet

Info

Publication number
TW351801B
TW351801B TW087103540A TW87103540A TW351801B TW 351801 B TW351801 B TW 351801B TW 087103540 A TW087103540 A TW 087103540A TW 87103540 A TW87103540 A TW 87103540A TW 351801 B TW351801 B TW 351801B
Authority
TW
Taiwan
Prior art keywords
oblique surface
light beam
prism sheet
asymmetric prism
light
Prior art date
Application number
TW087103540A
Other languages
English (en)
Inventor
Eizaburo Higuchi
Yasuhiro Koike
Original Assignee
Yasuhiro Koike
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 Yasuhiro Koike filed Critical Yasuhiro Koike
Application granted granted Critical
Publication of TW351801B publication Critical patent/TW351801B/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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
TW087103540A 1997-03-11 1998-03-11 Surface light source and asymmetric prism sheet TW351801B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07455197A JP4053626B2 (ja) 1997-03-11 1997-03-11 面光源装置並びに非対称プリズムシート

Publications (1)

Publication Number Publication Date
TW351801B true TW351801B (en) 1999-02-01

Family

ID=13550503

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087103540A TW351801B (en) 1997-03-11 1998-03-11 Surface light source and asymmetric prism sheet

Country Status (5)

Country Link
US (1) US6222689B1 (zh)
JP (1) JP4053626B2 (zh)
DE (1) DE19880484T1 (zh)
TW (1) TW351801B (zh)
WO (1) WO1998040664A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
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TWI394991B (zh) * 2007-06-12 2013-05-01 Cheil Ind Inc 用於ｌｃｄ背光單元之具有對稱前稜柱及不對稱前稜柱之導光板

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TWI394991B (zh) * 2007-06-12 2013-05-01 Cheil Ind Inc 用於ｌｃｄ背光單元之具有對稱前稜柱及不對稱前稜柱之導光板
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Also Published As

Publication number Publication date
JP4053626B2 (ja) 2008-02-27
DE19880484T1 (de) 1999-04-15
WO1998040664A1 (fr) 1998-09-17
JPH10254371A (ja) 1998-09-25
US6222689B1 (en) 2001-04-24

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees