JPS54144076A - Discharge lamp - Google Patents
Discharge lampInfo
- Publication number
- JPS54144076A JPS54144076A JP5200078A JP5200078A JPS54144076A JP S54144076 A JPS54144076 A JP S54144076A JP 5200078 A JP5200078 A JP 5200078A JP 5200078 A JP5200078 A JP 5200078A JP S54144076 A JPS54144076 A JP S54144076A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- electron
- contamination
- barium titanate
- deterioration
- 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.)
- Pending
Links
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 3
- 229910002113 barium titanate Inorganic materials 0.000 abstract 3
- 238000011109 contamination Methods 0.000 abstract 3
- 230000006866 deterioration Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 230000002285 radioactive effect Effects 0.000 abstract 2
- 230000004913 activation Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
Landscapes
- Discharge Lamp (AREA)
Abstract
PURPOSE: To prevent deterioration in the fluorescence output and blackening of the lamp due to contamination stemmed from decomposed gases by applying barium titanate as an electron redioactive matter to electrodes.
CONSTITUTION: A baked material composed of barium titanate is crushed and milled into a powder with a grain of μ. The powder thus obtained as an electron radioactive matter is suspend in an organic solvent and applied to a coil filament. The coil filament thus treated is incorporated into a fluorescent lamp, and the air is evacuated from the lamp to produce a finished product. Electron radioactive matters composed of barium titanate are extremely stable, showing no deterioration even when exposed to the air. In addition, these provide proper electron radioactivity as it is eliminating the need of decomposition or activation when used for lamps. Accordingly, contamination in the lamp with decomposed gases can be prevented, eliminating deterioration in fluorescence output and blackening of the lamp due to contamination. Thus, it is possible to obtain a fluorescent lamp which affords a good brightness and a prolonged life.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5200078A JPS54144076A (en) | 1978-04-28 | 1978-04-28 | Discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5200078A JPS54144076A (en) | 1978-04-28 | 1978-04-28 | Discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54144076A true JPS54144076A (en) | 1979-11-09 |
Family
ID=12902559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5200078A Pending JPS54144076A (en) | 1978-04-28 | 1978-04-28 | Discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54144076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744954A (en) * | 1980-09-01 | 1982-03-13 | Toshiba Corp | Rapid start type fluorescent lamp |
| JPH08222139A (en) * | 1994-12-28 | 1996-08-30 | Samsung Display Devices Co Ltd | Thermoelectron emissive oxide cathode and manufacture thereof |
-
1978
- 1978-04-28 JP JP5200078A patent/JPS54144076A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744954A (en) * | 1980-09-01 | 1982-03-13 | Toshiba Corp | Rapid start type fluorescent lamp |
| JPH08222139A (en) * | 1994-12-28 | 1996-08-30 | Samsung Display Devices Co Ltd | Thermoelectron emissive oxide cathode and manufacture thereof |
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