GB468805A - Improvements in sources of infra-red radiation - Google Patents
Improvements in sources of infra-red radiationInfo
- Publication number
- GB468805A GB468805A GB876436A GB876436A GB468805A GB 468805 A GB468805 A GB 468805A GB 876436 A GB876436 A GB 876436A GB 876436 A GB876436 A GB 876436A GB 468805 A GB468805 A GB 468805A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- infra
- temperature
- radiation
- red
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Abstract
468,805. Discharge lamps; photoelectric signalling &c. apparatus.' GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gl³hlampen) March 24, 1936, No. 8764. [Classes 39 (i) and 40 (iii)] A discharge device acting as a source of near infra-red radiation has a filling of rare gas, and caesium vapour at pressures corresponding to temperatures between 80 and 140‹ C., i.e. between À00016 and À0071 mms. The rare gas may be neon at 5-15 mms. If the heat developed in the discharge is not sufficient to maintain the temperature in the range specified, external heating means may be employed. The small amount of visible radiation may be removed by a filter of infra-red transmitting glass, such as Schott R.G.7, which may form the envelope. The visible radiation is transformed into heat which may assist in maintaining the temperature of the discharge. The device may be utilized for television or secret signalling in conjunction with the caesium silver oxide type of photo-cell specially sensitive to near infra-red radiation. Specification 400,756 is referred to. The Provisional Specification refers to a temperature range of 100-125‹ C. Reference, has been directed by the Comptroller to Specification 400,756.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB876436A GB468805A (en) | 1936-03-24 | 1936-03-24 | Improvements in sources of infra-red radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB876436A GB468805A (en) | 1936-03-24 | 1936-03-24 | Improvements in sources of infra-red radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB468805A true GB468805A (en) | 1937-07-13 |
Family
ID=9858817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB876436A Expired GB468805A (en) | 1936-03-24 | 1936-03-24 | Improvements in sources of infra-red radiation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB468805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2562887A (en) * | 1945-01-04 | 1951-08-07 | Westinghouse Electric Corp | Vapor lamp and system |
-
1936
- 1936-03-24 GB GB876436A patent/GB468805A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2562887A (en) * | 1945-01-04 | 1951-08-07 | Westinghouse Electric Corp | Vapor lamp and system |
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