JPS6433830A - Shadow mask for color cathode-ray tube - Google Patents
Shadow mask for color cathode-ray tubeInfo
- Publication number
- JPS6433830A JPS6433830A JP18936787A JP18936787A JPS6433830A JP S6433830 A JPS6433830 A JP S6433830A JP 18936787 A JP18936787 A JP 18936787A JP 18936787 A JP18936787 A JP 18936787A JP S6433830 A JPS6433830 A JP S6433830A
- Authority
- JP
- Japan
- Prior art keywords
- shadow mask
- main body
- mask main
- nickel
- ray tube
- 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
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE:To reduce the average thermal expansion coefficient in the operating temperature range of a color cathode-ray tube and reduce its thermal deformation by forming a shadow mask main body having many electron beam permeating holes regularly with a thin plate made of nickel alloy containing 37-40wt.% of nickel and the remainder of iron. CONSTITUTION:Many electron beam permeating holes 1a are regularly formed by etching on a shadow mask main body 1 formed into a protruded face shape. The shadow mask main body 1 is constituted of a thin plate made of nickel alloy containing 37-40wt.% of nickel and the remainder of iron. The average thermal expansion coefficient in the operating temperature range of 80 deg.C-250 deg.C of the shadow mask is made smaller than that of an amber alloy, thereby the thermal deformation due to the thermal expansion of the shadow mask main body can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18936787A JPS6433830A (en) | 1987-07-28 | 1987-07-28 | Shadow mask for color cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18936787A JPS6433830A (en) | 1987-07-28 | 1987-07-28 | Shadow mask for color cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433830A true JPS6433830A (en) | 1989-02-03 |
Family
ID=16240131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18936787A Pending JPS6433830A (en) | 1987-07-28 | 1987-07-28 | Shadow mask for color cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433830A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5123887A (en) * | 1990-01-25 | 1992-06-23 | Isowa Industry Co., Ltd. | Apparatus for determining processing positions of printer slotter |
US8489148B2 (en) | 2005-11-09 | 2013-07-16 | Samsung Electronics Co., Ltd. | Device and method for expressing status of terminal using character |
-
1987
- 1987-07-28 JP JP18936787A patent/JPS6433830A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5123887A (en) * | 1990-01-25 | 1992-06-23 | Isowa Industry Co., Ltd. | Apparatus for determining processing positions of printer slotter |
US8489148B2 (en) | 2005-11-09 | 2013-07-16 | Samsung Electronics Co., Ltd. | Device and method for expressing status of terminal using character |
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