JPS61136460U - - Google Patents
Info
- Publication number
- JPS61136460U JPS61136460U JP1981585U JP1981585U JPS61136460U JP S61136460 U JPS61136460 U JP S61136460U JP 1981585 U JP1981585 U JP 1981585U JP 1981585 U JP1981585 U JP 1981585U JP S61136460 U JPS61136460 U JP S61136460U
- Authority
- JP
- Japan
- Prior art keywords
- glass panel
- ray tube
- cathode ray
- utility
- value
- 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
- 239000011521 glass Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
第１図はこの考案による陰極線管の実施例を示
す部分断面図、第２図は従来の陰極線管の構造を
示す一部破断断面図、第３図は角型の螢光スクリ
ーンを示す図、第４図はグレーデーシヨンを説明
する図、第５図はガラスパネルの部分拡大図、第
６図はクリアガラスの透過率特性をダークテイン
トガラスと比較して示す図である。
２……ガラスパネル、２０……蒸着膜。なお、
図中、同一符号は同一または相当部分を示す。
FIG. 1 is a partial sectional view showing an embodiment of a cathode ray tube according to this invention, FIG. 2 is a partially cutaway sectional view showing the structure of a conventional cathode ray tube, and FIG. 3 is a view showing a square fluorescent screen. FIG. 4 is a diagram explaining gradation, FIG. 5 is a partially enlarged view of a glass panel, and FIG. 6 is a diagram showing transmittance characteristics of clear glass in comparison with dark taint glass. 2... Glass panel, 20... Vapor deposited film. In addition,
In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
したとき、中央部と周辺部とでε・ｃの値が異な
るガラスパネルを用いたことを特徴とする陰極線
管。 (2) ガラスパネルの表面に蒸着膜からなる濃度
フイルタを設けることにより中央部と周辺部とで
ε・ｃの値を異ならせた実用新案登録請求の範囲
第１項記載の陰極線管。[Claims for Utility Model Registration] (1) A glass panel is used, where the absorption coefficient of the glass panel is ε and the concentration is c, the value of ε・c is different between the central part and the peripheral part. cathode ray tube. (2) The cathode ray tube according to claim 1, which is a utility model, in which the value of ε·c is made different between the central part and the peripheral part by providing a density filter made of a vapor-deposited film on the surface of the glass panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981585U JPS61136460U (en) | 1985-02-14 | 1985-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981585U JPS61136460U (en) | 1985-02-14 | 1985-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61136460U true JPS61136460U (en) | 1986-08-25 |
Family
ID=30509736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981585U Pending JPS61136460U (en) | 1985-02-14 | 1985-02-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61136460U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493457B1 (en) * | 1965-07-03 | 1974-01-26 | ||
| JPS55157843A (en) * | 1979-05-29 | 1980-12-08 | Mitsubishi Electric Corp | Black matrix system colour image receiving tube |
-
1985
- 1985-02-14 JP JP1981585U patent/JPS61136460U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493457B1 (en) * | 1965-07-03 | 1974-01-26 | ||
| JPS55157843A (en) * | 1979-05-29 | 1980-12-08 | Mitsubishi Electric Corp | Black matrix system colour image receiving tube |