LU50369A1 - - Google Patents

Info

Publication number
LU50369A1
LU50369A1 LU50369A LU50369A LU50369A1 LU 50369 A1 LU50369 A1 LU 50369A1 LU 50369 A LU50369 A LU 50369A LU 50369 A LU50369 A LU 50369A LU 50369 A1 LU50369 A1 LU 50369A1
Authority
LU
Luxembourg
Application number
LU50369A
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 filed Critical
Publication of LU50369A1 publication Critical patent/LU50369A1/xx

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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/184—Information to display
    • G09F2013/1845—Interchangeable poster

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
LU50369A 1965-03-26 1966-02-01 LU50369A1 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR10774A FR1437656A (fr) 1965-03-26 1965-03-26 Perfectionnements aux procédés d'affichage lumineux

Publications (1)

Publication Number Publication Date
LU50369A1 true LU50369A1 (xx) 1966-04-01

Family

ID=8574930

Family Applications (1)

Application Number Title Priority Date Filing Date
LU50369A LU50369A1 (xx) 1965-03-26 1966-02-01

Country Status (3)

Country Link
BE (1) BE672318A (xx)
FR (1) FR1437656A (xx)
LU (1) LU50369A1 (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016589A1 (en) * 1979-03-16 1980-10-01 Daniel Dominic Da Costa A display device

Also Published As

Publication number Publication date
FR1437656A (fr) 1966-05-06
BE672318A (xx) 1966-03-16

Similar Documents

Publication Publication Date Title
AU6340065A (xx)
BE676044A (xx)
BE671472A (xx)
BE657982A (xx)
BE660387A (xx)
BE663007A (xx)
BE663881A (xx)
BE665029A (xx)
BE666089A (xx)
BE667491A (xx)
BE667658A (xx)
BE669260A (xx)
BE669527A (xx)
BE669557A (xx)
BE670335A (xx)
BE670428A (xx)
BE670584A (xx)
BE670814A (xx)
BE676028A (xx)
BE671553A (xx)
BE671653A (xx)
BE673925A (xx)
BE674051A (xx)
BE674361A (xx)
BE674407A (xx)