FR2049387A6 - - Google Patents

Info

Publication number
FR2049387A6
FR2049387A6 FR6918966A FR6918966A FR2049387A6 FR 2049387 A6 FR2049387 A6 FR 2049387A6 FR 6918966 A FR6918966 A FR 6918966A FR 6918966 A FR6918966 A FR 6918966A FR 2049387 A6 FR2049387 A6 FR 2049387A6
Authority
FR
France
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.)
Expired
Application number
FR6918966A
Other languages
French (fr)
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to FR6918966A priority Critical patent/FR2049387A6/fr
Application granted granted Critical
Publication of FR2049387A6 publication Critical patent/FR2049387A6/fr
Expired 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
    • G02B6/0038—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
    • G02B6/0058—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
    • G02B6/0045—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
    • G02B6/0066—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
FR6918966A 1969-06-09 1969-06-09 Expired FR2049387A6 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6918966A FR2049387A6 (de) 1969-06-09 1969-06-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6918966A FR2049387A6 (de) 1969-06-09 1969-06-09

Publications (1)

Publication Number Publication Date
FR2049387A6 true FR2049387A6 (de) 1971-03-26

Family

ID=9035389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6918966A Expired FR2049387A6 (de) 1969-06-09 1969-06-09

Country Status (1)

Country Link
FR (1) FR2049387A6 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0416253A2 (de) * 1989-09-08 1991-03-13 Inotec Gmbh Gesellschaft Für Innovative Technik Lichtstrahler
WO2001044716A1 (en) * 1999-12-02 2001-06-21 Reflexite Corporation Asymmetric alternating prism arrays
EP1174659A1 (de) * 1999-03-30 2002-01-23 West Electric Co., Ltd. Beleuchtung und die beleuchtung enthaltende flüssigkristallanzeige
US6891677B2 (en) 1999-11-12 2005-05-10 Reflexite Corporation Subwavelength optical microstructure light-redirecting films

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0416253A2 (de) * 1989-09-08 1991-03-13 Inotec Gmbh Gesellschaft Für Innovative Technik Lichtstrahler
EP0416253A3 (en) * 1989-09-08 1992-02-19 Inotec Gmbh Gesellschaft Fuer Innovative Technik Light
US5136483A (en) * 1989-09-08 1992-08-04 Schoeniger Karl Heinz Illuminating device
EP1174659A1 (de) * 1999-03-30 2002-01-23 West Electric Co., Ltd. Beleuchtung und die beleuchtung enthaltende flüssigkristallanzeige
EP1174659A4 (de) * 1999-03-30 2007-04-11 Panasonic Photo & Lighting Co Beleuchtung und die beleuchtung enthaltende flüssigkristallanzeige
US6891677B2 (en) 1999-11-12 2005-05-10 Reflexite Corporation Subwavelength optical microstructure light-redirecting films
WO2001044716A1 (en) * 1999-12-02 2001-06-21 Reflexite Corporation Asymmetric alternating prism arrays
US6854855B2 (en) 1999-12-02 2005-02-15 Reflexite Corporation Asymmetric alternating prism arrays
US6874913B2 (en) 1999-12-02 2005-04-05 Reflexite Corporation Asymmetric alternating prism arrays

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