FR2052166A5 - - Google Patents

Info

Publication number
FR2052166A5
FR2052166A5 FR6925338A FR6925338A FR2052166A5 FR 2052166 A5 FR2052166 A5 FR 2052166A5 FR 6925338 A FR6925338 A FR 6925338A FR 6925338 A FR6925338 A FR 6925338A FR 2052166 A5 FR2052166 A5 FR 2052166A5
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
FR6925338A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR6925338A priority Critical patent/FR2052166A5/fr
Application granted granted Critical
Publication of FR2052166A5 publication Critical patent/FR2052166A5/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
    • G02B6/0036—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
    • G02B6/0033—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
    • G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
FR6925338A 1969-07-24 1969-07-24 Expired FR2052166A5 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6925338A FR2052166A5 (fr) 1969-07-24 1969-07-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6925338A FR2052166A5 (fr) 1969-07-24 1969-07-24

Publications (1)

Publication Number Publication Date
FR2052166A5 true FR2052166A5 (fr) 1971-04-09

Family

ID=9037992

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6925338A Expired FR2052166A5 (fr) 1969-07-24 1969-07-24

Country Status (1)

Country Link
FR (1) FR2052166A5 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420166A1 (fr) * 1978-03-15 1979-10-12 Decca Ltd Panneau de commande auto-eclairant
EP0781959A1 (fr) * 1995-12-28 1997-07-02 AT&T Corp. Dispositif d'affichage transparent avec dispositif d'illumination muni d'un diffuseur arrière microtexturisé et son procédé de fabrication
WO1999045318A1 (fr) * 1998-03-05 1999-09-10 Litton Systems, Inc. Eclairage arriere a source d'illumination integree

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420166A1 (fr) * 1978-03-15 1979-10-12 Decca Ltd Panneau de commande auto-eclairant
EP0781959A1 (fr) * 1995-12-28 1997-07-02 AT&T Corp. Dispositif d'affichage transparent avec dispositif d'illumination muni d'un diffuseur arrière microtexturisé et son procédé de fabrication
US6042241A (en) * 1997-07-31 2000-03-28 Litton Systems, Inc. Backlight with integral illumination source
WO1999045318A1 (fr) * 1998-03-05 1999-09-10 Litton Systems, Inc. Eclairage arriere a source d'illumination integree

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Legal Events

Date Code Title Description
ST Notification of lapse