JPS54124587A - Making of oxide film for incandescent bulb - Google Patents
Making of oxide film for incandescent bulbInfo
- Publication number
- JPS54124587A JPS54124587A JP3206278A JP3206278A JPS54124587A JP S54124587 A JPS54124587 A JP S54124587A JP 3206278 A JP3206278 A JP 3206278A JP 3206278 A JP3206278 A JP 3206278A JP S54124587 A JPS54124587 A JP S54124587A
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- oxide film
- filament
- producing
- lamp
- 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
Abstract
PURPOSE: To efficiently make an incandescent lamp of high heat radiating property, by producing a metal oxide film only on a specific part of the outside surface of a bulb by the lighting heat of the lamp.
CONSTITUTION: The lamp 1 is assembled to such a state that it can be lighted on. Then, a filament 10 is made incandescent by energizing so that the temperature of the wall of the bulb 2 is raised and such as a mixed liquid consisting of antimony chloride and tim chloride is sprayed onto the total outside surface of the bulb 2. The mixed liquid is oxidized only along the total length l of the filament, thereby producing the metal oxide film 12 only on the part of the bulb corresponding to the filament. Thus, the equipment for producing the oxide film is simplified and the overheating of the bulb during the lighting is prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3206278A JPS54124587A (en) | 1978-03-20 | 1978-03-20 | Making of oxide film for incandescent bulb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3206278A JPS54124587A (en) | 1978-03-20 | 1978-03-20 | Making of oxide film for incandescent bulb |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54124587A true JPS54124587A (en) | 1979-09-27 |
Family
ID=12348383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3206278A Pending JPS54124587A (en) | 1978-03-20 | 1978-03-20 | Making of oxide film for incandescent bulb |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54124587A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6298556A (en) * | 1985-10-23 | 1987-05-08 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Electric lamp |
-
1978
- 1978-03-20 JP JP3206278A patent/JPS54124587A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6298556A (en) * | 1985-10-23 | 1987-05-08 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Electric lamp |
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