GB190218A - Improvements in and relating to photo-electric devices and methods of manufacturing the same - Google Patents
Improvements in and relating to photo-electric devices and methods of manufacturing the sameInfo
- Publication number
- GB190218A GB190218A GB24207/21A GB2420721A GB190218A GB 190218 A GB190218 A GB 190218A GB 24207/21 A GB24207/21 A GB 24207/21A GB 2420721 A GB2420721 A GB 2420721A GB 190218 A GB190218 A GB 190218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- photo
- relating
- manufacturing
- methods
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
- H01J40/06—Photo-emissive cathodes
Abstract
190,218. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 12, 1921. Gilding and silvering. -A metallic film is de posited on the inner surface of a bulb for use as a photo-electric discharge device, by securing a bead of gold or silver on a filament 6 of refractory material such as tungsten, molybdenum or tantalum, and heating the filament by passage of current to volatilize the metal of the head, the condensation of which on the bulb may be assisted by cooling the bulb, for instance, by immersion in water; the pressure in the bulb is maintained at 5 microns during the process. Moisture is removed by heating the bulb to 360 C. and exhausting through a tube 9. A nickel shield 7 of conical or other shape prevents deposition of the metal on a part 12 of the bulb, and a shield 8 prevents deposition on the side tube 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US462052A US1568694A (en) | 1921-04-16 | 1921-04-16 | Photo-electric device |
| GB24207/21A GB190218A (en) | 1921-04-16 | 1921-09-12 | Improvements in and relating to photo-electric devices and methods of manufacturing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US462052A US1568694A (en) | 1921-04-16 | 1921-04-16 | Photo-electric device |
| GB24207/21A GB190218A (en) | 1921-04-16 | 1921-09-12 | Improvements in and relating to photo-electric devices and methods of manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190218A true GB190218A (en) | 1922-12-12 |
Family
ID=26256983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24207/21A Expired GB190218A (en) | 1921-04-16 | 1921-09-12 | Improvements in and relating to photo-electric devices and methods of manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1568694A (en) |
| GB (1) | GB190218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767648C (en) * | 1937-09-18 | 1953-03-02 | Aeg | Photocell with vapor deposition cathode and light entry window |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB657564A (en) * | 1948-11-11 | 1951-09-19 | Nat Res Dev | Improvements in or relating to infra-red sensitive cells |
| US3183051A (en) * | 1963-03-01 | 1965-05-11 | Gen Electric | Alkali metal vapor lamp manufacture |
| US3535011A (en) * | 1968-02-27 | 1970-10-20 | Rca Corp | Method of making photoemissive electron tubes |
-
1921
- 1921-04-16 US US462052A patent/US1568694A/en not_active Expired - Lifetime
- 1921-09-12 GB GB24207/21A patent/GB190218A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767648C (en) * | 1937-09-18 | 1953-03-02 | Aeg | Photocell with vapor deposition cathode and light entry window |
Also Published As
| Publication number | Publication date |
|---|---|
| US1568694A (en) | 1926-01-05 |
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