JPS5499557A - Direct-heated cathode - Google Patents
Direct-heated cathodeInfo
- Publication number
- JPS5499557A JPS5499557A JP576278A JP576278A JPS5499557A JP S5499557 A JPS5499557 A JP S5499557A JP 576278 A JP576278 A JP 576278A JP 576278 A JP576278 A JP 576278A JP S5499557 A JPS5499557 A JP S5499557A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- heat
- reflective film
- ceramics
- electrode
- 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 decrease the heat loss caused by the heat radiation of the heater and thus to reduce the power consumption by providing the heat-reflecting component around and close to the heater.
CONSTITUTION: Reflective film 32 (heat reflecting component) is formed by applying the vacuum evaporation of the nickel metal on the surface opposing to the heater of ceramics 31 (insulating supporter) and at the position where no leak is caused between electrodes. Then electrode 33 with spring 36 is sealed to ceramics 31, and ribbon-shaped heater 35 containing heat electron discharge part 34 is welded to electrode 33. The radiation heat given from heater 35 is reflected by reflective film 32 and returns to the heater, thus reducing the power down about 20W25% to secure the same cathode temperature in comparison with the case with no reflective film provided.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP576278A JPS5499557A (en) | 1978-01-24 | 1978-01-24 | Direct-heated cathode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP576278A JPS5499557A (en) | 1978-01-24 | 1978-01-24 | Direct-heated cathode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5499557A true JPS5499557A (en) | 1979-08-06 |
Family
ID=11620129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP576278A Pending JPS5499557A (en) | 1978-01-24 | 1978-01-24 | Direct-heated cathode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5499557A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8020314B2 (en) * | 2008-10-31 | 2011-09-20 | Corning Incorporated | Methods and apparatus for drying ceramic green bodies with microwaves |
-
1978
- 1978-01-24 JP JP576278A patent/JPS5499557A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8020314B2 (en) * | 2008-10-31 | 2011-09-20 | Corning Incorporated | Methods and apparatus for drying ceramic green bodies with microwaves |
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