GB401151A - Improvements in illuminated signs - Google Patents
Improvements in illuminated signsInfo
- Publication number
- GB401151A GB401151A GB4555/33A GB455533A GB401151A GB 401151 A GB401151 A GB 401151A GB 4555/33 A GB4555/33 A GB 4555/33A GB 455533 A GB455533 A GB 455533A GB 401151 A GB401151 A GB 401151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- discharge tube
- illuminated
- letters
- white
- 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
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
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of 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
- G02B6/0003—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 doped with fluorescent agents
-
- 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
- G02B6/0065—Manufacturing aspects; Material aspects
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/007—Incandescent lamp or gas discharge lamp
- G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
401,151. Electric discharge tube signs; changing signs. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.- (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 14, 1933, No. 4555. Convention date, March 10, 1932. [Classes 3 (i) and 3 (ii).] In a sign of the kind comprising a plate at the back of which are insciptions &c. illuminated by an electric discharge tube or tubes arranged adjacent at least one edge of the plate, the inscriptions &c. are provided with a white or coloured backing which does not extend to the remainder of the plate. As shown, letters i formed by etching or sand blasting in a glass plate b mounted in a box a and illuminated by a discharge tube d which may be flashed, are provided with a white or coloured backing k which may consist of or include fluorescent or phosphorescent substances. The box a is provided with a projecting edge g for engaging feet h. In a modification the letters are formed from the backing material which is arranged in a thick layer on the back of the glass plate. Two glass plates each provided with an inscription may be arranged back to back with a non- transparent plate between them.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE401151X | 1932-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB401151A true GB401151A (en) | 1933-11-09 |
Family
ID=6404101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4555/33A Expired GB401151A (en) | 1932-03-10 | 1933-02-14 | Improvements in illuminated signs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB401151A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2551622A (en) * | 1947-01-14 | 1951-05-08 | Edgar H Mohr | Illuminated plastic advertising medium |
US2562740A (en) * | 1948-03-13 | 1951-07-31 | Charles E Rose | Illuminating device for automobile license plates |
US2689917A (en) * | 1949-12-28 | 1954-09-21 | Joseph L Switzer | Fluorescent display device |
-
1933
- 1933-02-14 GB GB4555/33A patent/GB401151A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2551622A (en) * | 1947-01-14 | 1951-05-08 | Edgar H Mohr | Illuminated plastic advertising medium |
US2562740A (en) * | 1948-03-13 | 1951-07-31 | Charles E Rose | Illuminating device for automobile license plates |
US2689917A (en) * | 1949-12-28 | 1954-09-21 | Joseph L Switzer | Fluorescent display device |
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