JPH0458941U - - Google Patents
Info
- Publication number
- JPH0458941U JPH0458941U JP9991490U JP9991490U JPH0458941U JP H0458941 U JPH0458941 U JP H0458941U JP 9991490 U JP9991490 U JP 9991490U JP 9991490 U JP9991490 U JP 9991490U JP H0458941 U JPH0458941 U JP H0458941U
- Authority
- JP
- Japan
- Prior art keywords
- shadow mask
- color selection
- electron beam
- mask
- view
- 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
- 238000010894 electron beam technology Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
第１図は本考案の第１の実施例の要部断面図、
第２図はアノード電流を流すことにより従来のカ
ラーブラウン管における色選択用シヤドウマスク
の膨張の様子を示す断面図、第３図は第１図の色
選択用シヤドウマスクの膨張の様子を示す断面図
、第４図は本考案の第２の実施例の電子ビーム遮
蔽用マスクの正面図、第５図は従来のカラーブラ
ウン管の一例の断面図である。
１……電子ビーム遮蔽用マスク、２……色選択
用シヤドウマスク、２ａ……低電流におけるシヤ
ドウマスク、２ｂ……高電流により熱膨張したシ
ヤドウマスク、２ｃ……ほとんど熱膨張しないシ
ヤドウマスク、３……パネル、４……フアンネル
、５……電子銃、６……電子ビーム、７……蛍光
体ドツト、８……電子ビーム透過光、９……蛍光
面、１０……ガラスバルブ、１１……偏向ヨーク
、１２……コンバージエンスピユリテイマグネツ
ト。
FIG. 1 is a sectional view of the main parts of the first embodiment of the present invention,
FIG. 2 is a cross-sectional view showing how the color selection shadow mask in a conventional color cathode ray tube expands when an anode current is applied. FIG. 3 is a cross-sectional view showing how the color selection shadow mask shown in FIG. 1 expands. FIG. 4 is a front view of an electron beam shielding mask according to a second embodiment of the present invention, and FIG. 5 is a sectional view of an example of a conventional color cathode ray tube. 1...Mask for electron beam shielding, 2...Shadow mask for color selection, 2a...Shadow mask at low current, 2b...Shadow mask thermally expanded by high current, 2c...Shadow mask with almost no thermal expansion, 3...Panel, 4... funnel, 5... electron gun, 6... electron beam, 7... phosphor dot, 8... electron beam transmitted light, 9... phosphor screen, 10... glass bulb, 11... deflection yoke, 12... Convergence Spirit Magnet.
Claims (1)
、色選択用シヤドウマスクの電子銃側の位置に前
記色選択用シヤドウマスクと平行に電子ビーム遮
蔽用マスクをそなえたことを特徴とするカラーブ
ラウン管。 A color cathode ray tube of a shadow mask type, characterized in that an electron beam shielding mask is provided at a position on the electron gun side of the color selection shadow mask in parallel with the color selection shadow mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9991490U JPH0458941U (en) | 1990-09-25 | 1990-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9991490U JPH0458941U (en) | 1990-09-25 | 1990-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458941U true JPH0458941U (en) | 1992-05-20 |
Family
ID=31842175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9991490U Pending JPH0458941U (en) | 1990-09-25 | 1990-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458941U (en) |
-
1990
- 1990-09-25 JP JP9991490U patent/JPH0458941U/ja active Pending
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