JPS55115242A - Projection type braun tube - Google Patents
Projection type braun tubeInfo
- Publication number
- JPS55115242A JPS55115242A JP2275779A JP2275779A JPS55115242A JP S55115242 A JPS55115242 A JP S55115242A JP 2275779 A JP2275779 A JP 2275779A JP 2275779 A JP2275779 A JP 2275779A JP S55115242 A JPS55115242 A JP S55115242A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- fluorescent screen
- projection type
- braun tube
- type braun
- 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
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE: To enhance the heat radiation effect of a fluorescent screen and render its luminance greater by the interposition of a metal or metal oxide between the metal back and fluorescent screen.
CONSTITUTION: A metal or metal oxide 9, e.g., Al or Al2O3 is packed in between the fluorescent screen 3 formed on the screen portion of the tube 1 and the metal back 4, whereby the transmission of the energy heat of electron beam from the fluorescent screen 3 to the metal back 4 can be attained and therefore its heat radiation effect can be made greater. Thus, the current density of electron beam can be increased and thereby the luminance can be raised.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2275779A JPS55115242A (en) | 1979-02-27 | 1979-02-27 | Projection type braun tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2275779A JPS55115242A (en) | 1979-02-27 | 1979-02-27 | Projection type braun tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55115242A true JPS55115242A (en) | 1980-09-05 |
Family
ID=12091548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2275779A Pending JPS55115242A (en) | 1979-02-27 | 1979-02-27 | Projection type braun tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55115242A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57118344A (en) * | 1981-01-14 | 1982-07-23 | Hitachi Ltd | Manufacture of fluorescent surface for color image receiving tube |
EP0543671A2 (en) * | 1991-11-20 | 1993-05-26 | Samsung Display Devices Co., Ltd. | Far-infrared emitting cathode ray tube |
-
1979
- 1979-02-27 JP JP2275779A patent/JPS55115242A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57118344A (en) * | 1981-01-14 | 1982-07-23 | Hitachi Ltd | Manufacture of fluorescent surface for color image receiving tube |
JPH047055B2 (en) * | 1981-01-14 | 1992-02-07 | Hitachi Ltd | |
EP0543671A2 (en) * | 1991-11-20 | 1993-05-26 | Samsung Display Devices Co., Ltd. | Far-infrared emitting cathode ray tube |
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