GB358307A - Advertising device - Google Patents

Advertising device

Info

Publication number
GB358307A
GB358307A GB31380/30A GB3138030A GB358307A GB 358307 A GB358307 A GB 358307A GB 31380/30 A GB31380/30 A GB 31380/30A GB 3138030 A GB3138030 A GB 3138030A GB 358307 A GB358307 A GB 358307A
Authority
GB
United Kingdom
Prior art keywords
plate
illuminated
oct
advertising device
mirror
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
GB31380/30A
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
Publication of GB358307A publication Critical patent/GB358307A/en
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
    • G02B6/0058—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
    • G02B6/0033—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

Abstract

358,307. Signs. LANGEHEINEKEN, G., 7, Kirchoftstrasse, Varel, Oldenburg, Germany. Oct. 20, 1930, No. 31380. Convention date, Oct. 21, 1929. [Class 3 (ii).] In a sign of the type in which a glass plate a carrying sand-blasted or like depressions b in the form of characters, pictures, &c., is illuminated through its edge, the plate is enclosed between a front transparent mirror c and a rear opaque mirror f, so that a multiple image effect is produced. The device is illuminated by a lamp l in a casing k. A rear cover-plate h may be provided.
GB31380/30A 1929-10-21 1930-10-20 Advertising device Expired GB358307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE358307X 1929-10-21

Publications (1)

Publication Number Publication Date
GB358307A true GB358307A (en) 1931-10-08

Family

ID=6290793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31380/30A Expired GB358307A (en) 1929-10-21 1930-10-20 Advertising device

Country Status (1)

Country Link
GB (1) GB358307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107507500A (en) * 2017-09-26 2017-12-22 李锐 A kind of visual multiple video light source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107507500A (en) * 2017-09-26 2017-12-22 李锐 A kind of visual multiple video light source

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