GB902433A - Improvements relating to fluorescent lamps - Google Patents
Improvements relating to fluorescent lampsInfo
- Publication number
- GB902433A GB902433A GB3655257A GB3655257A GB902433A GB 902433 A GB902433 A GB 902433A GB 3655257 A GB3655257 A GB 3655257A GB 3655257 A GB3655257 A GB 3655257A GB 902433 A GB902433 A GB 902433A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- window
- radiation
- luminescing
- light
- 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
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/08—Lamps in which a screen or coating is excited to luminesce by radioactive material located inside the vessel
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
902,433. Luminescence. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1958 [Nov. 22, 1957], No. 36552/57. Class 39 (1). An illuminating device comprises a sealed envelope of light-transmissive material such as glass andof substantially circular cross-section enclosing a filling of radioactive gas emitting #-radiation, e.g. tritium, the interior wall of the envelope being coated, except for a window, with a visible-light reflecting material, e.g. finely-powdered TiO 2 or MgO, and the coating and the window being covered with a layer of material luminescing under the action of #- radiation. The layer of luminescing material is of such thickness as to absorb substantially the whole of the #-radiation falling upon it while not absorbing an appreciable amount of the visible light emitted by the luminescing material. The light-reflecting material can be applied to the envelope in a suspension or as a smoke. The envelope can be in the form of a sphere or a tube of circular cross-section, and in the latter case the window is a portion of the envelope subtending an angle of from 45 to 180 degrees at the longitudinal axis thereof. Reference has been directed by the Comptroller to Specification 646,414.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3655257A GB902433A (en) | 1957-11-22 | 1957-11-22 | Improvements relating to fluorescent lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3655257A GB902433A (en) | 1957-11-22 | 1957-11-22 | Improvements relating to fluorescent lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB902433A true GB902433A (en) | 1962-08-01 |
Family
ID=10389191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3655257A Expired GB902433A (en) | 1957-11-22 | 1957-11-22 | Improvements relating to fluorescent lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB902433A (en) |
-
1957
- 1957-11-22 GB GB3655257A patent/GB902433A/en not_active Expired
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