FR558208A - Perfectionnements aux annonces lumineuses - Google Patents

Perfectionnements aux annonces lumineuses

Info

Publication number
FR558208A
FR558208A FR558208DA FR558208A FR 558208 A FR558208 A FR 558208A FR 558208D A FR558208D A FR 558208DA FR 558208 A FR558208 A FR 558208A
Authority
FR
France
Prior art keywords
ads
illuminated
illuminated ads
Prior art date
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
Other languages
English (en)
Inventor
Ethelbert Thomas Ruthve Murray
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
Application granted granted Critical
Publication of FR558208A publication Critical patent/FR558208A/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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • 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
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1831—Achieving homogeneous illumination using more than one light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR558208D 1921-11-04 1922-11-02 Perfectionnements aux annonces lumineuses Expired FR558208A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB558208X 1921-11-04

Publications (1)

Publication Number Publication Date
FR558208A true FR558208A (fr) 1923-08-23

Family

ID=10474981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR558208D Expired FR558208A (fr) 1921-11-04 1922-11-02 Perfectionnements aux annonces lumineuses

Country Status (1)

Country Link
FR (1) FR558208A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470423A1 (fr) * 1979-11-23 1981-05-29 Viellard Bertrand Dispositif permettant d'obtenir des images lumineuses polychromes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470423A1 (fr) * 1979-11-23 1981-05-29 Viellard Bertrand Dispositif permettant d'obtenir des images lumineuses polychromes

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