TWI312047B - - Google Patents

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Publication number
TWI312047B
TWI312047B TW95142661A TW95142661A TWI312047B TW I312047 B TWI312047 B TW I312047B TW 95142661 A TW95142661 A TW 95142661A TW 95142661 A TW95142661 A TW 95142661A TW I312047 B TWI312047 B TW I312047B
Authority
TW
Taiwan
Prior art keywords
angle
incident
region
incident surface
light guide
Prior art date
Application number
TW95142661A
Other languages
English (en)
Chinese (zh)
Other versions
TW200734582A (en
Inventor
Tadashi Okuda
Teruo Teshima
Yoshiyasu Ishikawa
Toshiyuki Takaiwa
Original Assignee
Hitachi Chemical Co 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Publication of TW200734582A publication Critical patent/TW200734582A/zh
Application granted granted Critical
Publication of TWI312047B publication Critical patent/TWI312047B/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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
TW095142661A 2005-11-18 2006-11-17 Optical waveguide TW200734582A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005334236 2005-11-18

Publications (2)

Publication Number Publication Date
TW200734582A TW200734582A (en) 2007-09-16
TWI312047B true TWI312047B (ko) 2009-07-11

Family

ID=38048572

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095142661A TW200734582A (en) 2005-11-18 2006-11-17 Optical waveguide

Country Status (3)

Country Link
JP (1) JP4905357B2 (ko)
TW (1) TW200734582A (ko)
WO (1) WO2007058187A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018084596A (ja) * 2016-11-21 2018-05-31 マクセル株式会社 情報表示装置
CN112166284B (zh) * 2018-05-30 2022-11-08 株式会社小糸制作所 车辆用灯具
CN110131663A (zh) * 2019-06-10 2019-08-16 马瑞利汽车零部件(芜湖)有限公司 具有鳞状发光效果的光学系统及其车灯

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07294745A (ja) * 1994-04-25 1995-11-10 Fanuc Ltd バックライトパネル
JP3994190B2 (ja) * 2002-03-11 2007-10-17 シチズン電子株式会社 バックライト

Also Published As

Publication number Publication date
JP4905357B2 (ja) 2012-03-28
TW200734582A (en) 2007-09-16
WO2007058187A1 (ja) 2007-05-24
JPWO2007058187A1 (ja) 2009-04-30

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Legal Events

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