FR2477744B2 - - Google Patents

Info

Publication number
FR2477744B2
FR2477744B2 FR8004923A FR8004923A FR2477744B2 FR 2477744 B2 FR2477744 B2 FR 2477744B2 FR 8004923 A FR8004923 A FR 8004923A FR 8004923 A FR8004923 A FR 8004923A FR 2477744 B2 FR2477744 B2 FR 2477744B2
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
FR8004923A
Other languages
French (fr)
Other versions
FR2477744A2 (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.)
Spiralux Neon SPRL
Original Assignee
Spiralux Neon SPRL
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 Spiralux Neon SPRL filed Critical Spiralux Neon SPRL
Priority to FR8004923A priority Critical patent/FR2477744A2/fr
Priority to DE19803009162 priority patent/DE3009162A1/de
Priority to NL8001431A priority patent/NL8001431A/nl
Priority to GB8008291A priority patent/GB2046977B/en
Publication of FR2477744A2 publication Critical patent/FR2477744A2/fr
Application granted granted Critical
Publication of FR2477744B2 publication Critical patent/FR2477744B2/fr
Granted 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
    • G02B6/0013—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
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
FR8004923A 1979-03-12 1980-03-05 Appareil lumineux a panneaux transparents illumines par leur tranche Granted FR2477744A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8004923A FR2477744A2 (fr) 1980-03-05 1980-03-05 Appareil lumineux a panneaux transparents illumines par leur tranche
DE19803009162 DE3009162A1 (de) 1979-03-12 1980-03-10 Leuchtvorrichtung, wie leuchtschirm o.dgl.
NL8001431A NL8001431A (nl) 1979-03-12 1980-03-11 Lichtpaneelinrichting.
GB8008291A GB2046977B (en) 1979-03-12 1980-03-12 Illuminated display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8004923A FR2477744A2 (fr) 1980-03-05 1980-03-05 Appareil lumineux a panneaux transparents illumines par leur tranche

Publications (2)

Publication Number Publication Date
FR2477744A2 FR2477744A2 (fr) 1981-09-11
FR2477744B2 true FR2477744B2 (cg-RX-API-DMAC10.html) 1984-11-23

Family

ID=9239333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8004923A Granted FR2477744A2 (fr) 1979-03-12 1980-03-05 Appareil lumineux a panneaux transparents illumines par leur tranche

Country Status (1)

Country Link
FR (1) FR2477744A2 (cg-RX-API-DMAC10.html)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674238A (en) * 1949-05-10 1952-06-18 Priestley Studios Ltd Improvements in or relating to advertising or display devices
CH293325A (de) * 1951-08-23 1953-09-15 Bruellhardt & Co Lichtreklameapparat.
FR2110848A5 (cg-RX-API-DMAC10.html) * 1970-10-29 1972-06-02 Gontier Arrivat Andree

Also Published As

Publication number Publication date
FR2477744A2 (fr) 1981-09-11

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