JPS5497360A - Color picture tube - Google Patents
Color picture tubeInfo
- Publication number
- JPS5497360A JPS5497360A JP448378A JP448378A JPS5497360A JP S5497360 A JPS5497360 A JP S5497360A JP 448378 A JP448378 A JP 448378A JP 448378 A JP448378 A JP 448378A JP S5497360 A JPS5497360 A JP S5497360A
- Authority
- JP
- Japan
- Prior art keywords
- curvature
- mask
- fluorescent screen
- axis
- panel
- 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.)
- Granted
Links
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE: To obtain the most efficient photo output of a fluorescent screen by obtaining excellent landing characteristics over the entire fluorescent screen, the inner panel surface, by giving a specific relation between an angle against the tube axis of either the inner panel surface or aperture mask and radiuses of curvature of sections of long and short axes.
CONSTITUTION: As to the color CRT with aperture mask 1 confronted to and arranged on fluorescent screen 3 formed on the inner surface of panel 2 at a fixed interval, either the inner surface of panel 2 or mask 1 should be under the relation of equation (1) when the radius of curvature of the section forming an angle θ against long axis X including tube axis Z in the center of mask 1, and the radiuses of curvature of sections of long axis X and short axis Y are denoted by R, and RX and RY. Then, the other one is formed rotation-symmetrically with a single radius of curvature.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP448378A JPS5836813B2 (en) | 1978-01-18 | 1978-01-18 | color picture tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP448378A JPS5836813B2 (en) | 1978-01-18 | 1978-01-18 | color picture tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5497360A true JPS5497360A (en) | 1979-08-01 |
JPS5836813B2 JPS5836813B2 (en) | 1983-08-11 |
Family
ID=11585335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP448378A Expired JPS5836813B2 (en) | 1978-01-18 | 1978-01-18 | color picture tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836813B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4370591A (en) * | 1979-09-14 | 1983-01-25 | Hitachi, Ltd. | Color picture tube shadow mask |
JPS59165349A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPS59165348A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPS59165350A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPS60177534A (en) * | 1984-02-23 | 1985-09-11 | Toshiba Corp | Color picture tube |
-
1978
- 1978-01-18 JP JP448378A patent/JPS5836813B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4370591A (en) * | 1979-09-14 | 1983-01-25 | Hitachi, Ltd. | Color picture tube shadow mask |
JPS59165349A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPS59165348A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPS59165350A (en) * | 1983-03-09 | 1984-09-18 | Toshiba Corp | Cathode-ray tube |
JPH0364981B2 (en) * | 1983-03-09 | 1991-10-09 | ||
JPH0365611B2 (en) * | 1983-03-09 | 1991-10-14 | ||
JPS60177534A (en) * | 1984-02-23 | 1985-09-11 | Toshiba Corp | Color picture tube |
Also Published As
Publication number | Publication date |
---|---|
JPS5836813B2 (en) | 1983-08-11 |
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