GB481320A - Improvements in or relating to discharge tubes or other electrical sources of radiation of light - Google Patents
Improvements in or relating to discharge tubes or other electrical sources of radiation of lightInfo
- Publication number
- GB481320A GB481320A GB412/37A GB41237A GB481320A GB 481320 A GB481320 A GB 481320A GB 412/37 A GB412/37 A GB 412/37A GB 41237 A GB41237 A GB 41237A GB 481320 A GB481320 A GB 481320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- glass wool
- lamp
- envelope
- radiation
- 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
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
481,320. Discharge lamps. AKTIEBOLAGET ELEKTROD. Jan. 6, 1937, No. 412. Convention date, Jan. 9, 1936. [Class 39 (i)] [Also in Group XI] The sealed envelope of a discharge lamp or other electric source of light is closely packed in a heat insulating transparent or translucent material such as glass wool. The Figure shows a discharge lamp 1 enclosed in an outer envelope 8a, the space between the lamp and the envelope being filled with glass wool) 8. The glass wool may be coloured or coated with luminescent material. The space between the two envelopes may be dried by phosphorus pentoxide or the like, or steam may be introduced to stop infra-red radiation. The lamp shown is supported from the lead 3 by strips 4, 5 which also serve as starting electrodes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE481320X | 1936-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB481320A true GB481320A (en) | 1938-03-09 |
Family
ID=20310473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB412/37A Expired GB481320A (en) | 1936-01-09 | 1937-01-06 | Improvements in or relating to discharge tubes or other electrical sources of radiation of light |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB481320A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1123841B (en) * | 1959-09-08 | 1962-02-15 | Bodenseewerk Perkin Elmer Co | Radiation source for infrared spectrophotometer |
| EP0276888A2 (en) * | 1987-01-28 | 1988-08-03 | Philips Patentverwaltung GmbH | Gas-discharge lamp |
| US4870317A (en) * | 1987-09-02 | 1989-09-26 | U.S. Philips Corporation | High-pressure discharge lamp having a thermal insulating member |
| EP1690790A1 (en) | 2005-02-11 | 2006-08-16 | ROLLS-ROYCE plc | Turbine engine arrangements |
-
1937
- 1937-01-06 GB GB412/37A patent/GB481320A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1123841B (en) * | 1959-09-08 | 1962-02-15 | Bodenseewerk Perkin Elmer Co | Radiation source for infrared spectrophotometer |
| EP0276888A2 (en) * | 1987-01-28 | 1988-08-03 | Philips Patentverwaltung GmbH | Gas-discharge lamp |
| US4866327A (en) * | 1987-01-28 | 1989-09-12 | U.S. Philips Corporation | Gas discharge lamp with microporous aerogel |
| EP0276888A3 (en) * | 1987-01-28 | 1990-05-02 | Philips Patentverwaltung GmbH | Gas-discharge lamp |
| US4870317A (en) * | 1987-09-02 | 1989-09-26 | U.S. Philips Corporation | High-pressure discharge lamp having a thermal insulating member |
| EP1690790A1 (en) | 2005-02-11 | 2006-08-16 | ROLLS-ROYCE plc | Turbine engine arrangements |
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