GB778363A - Improvements in electroluminescent lamps - Google Patents
Improvements in electroluminescent lampsInfo
- Publication number
- GB778363A GB778363A GB36396/53A GB3639653A GB778363A GB 778363 A GB778363 A GB 778363A GB 36396/53 A GB36396/53 A GB 36396/53A GB 3639653 A GB3639653 A GB 3639653A GB 778363 A GB778363 A GB 778363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wax
- plaque
- layers
- fingers
- dec
- 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
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0023—Visual time or date indication means by light valves in general
- G04G9/0029—Details
- G04G9/0035—Details constructional
- G04G9/0041—Illumination devices
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/30—Illumination of dials or hands
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
778,363. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. Dec. 31, 1953 [Dec. 31, 1952], No. 36396/53. Class 39(1). Layers of moisture-pervious material seal the light producing layer of an electroluminescent plaque from the atmosphere and are provided on the plaque and on the inside lining of the lampholder, heat being applied to melt the material and form the seal. The layers may be wax and wax-impregnated polyvinyl chloride respectively. The plaque 10 comprises a transparent base 16 transparent conductive coatings 18, 22 and the luminescent layer 20, covered over by a wax coating 24 and the layers are cut away at 42, 44 to permit contact between the electrodes and metal contact fingers 32, 34. These fingers are connected to base pins 28, 30 projecting through the metal case 26 and a sheet of moistureimpervious wax-containing material 14, rubber grommets 35 insulating the pins. Insulating material 38 covers all but the ends of the fingers. After positioning the plaque within the container 14, 26, the edges of the metal case 26 are rolled over and with the application of heat, wax is squeezed out and seals the rolled over edges and joints. The lamp is employed as a clock face, or as a dial for radio sets and instruments. Specifications 717,171 and 724,977 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US778363XA | 1952-12-31 | 1952-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB778363A true GB778363A (en) | 1957-07-03 |
Family
ID=22140334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36396/53A Expired GB778363A (en) | 1952-12-31 | 1953-12-31 | Improvements in electroluminescent lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB778363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625817A1 (en) * | 1988-01-11 | 1989-07-13 | Timex Corp | ELECTROLUMINESCENT DIAL FOR ANALOG WATCH |
-
1953
- 1953-12-31 GB GB36396/53A patent/GB778363A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625817A1 (en) * | 1988-01-11 | 1989-07-13 | Timex Corp | ELECTROLUMINESCENT DIAL FOR ANALOG WATCH |
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