JPS5810358A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPS5810358A JPS5810358A JP10842281A JP10842281A JPS5810358A JP S5810358 A JPS5810358 A JP S5810358A JP 10842281 A JP10842281 A JP 10842281A JP 10842281 A JP10842281 A JP 10842281A JP S5810358 A JPS5810358 A JP S5810358A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- resin layer
- curvature
- ray tube
- glass
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/89—Optical components associated with the vessel
- H01J2229/8901—Fixing of optical components to the vessel
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、パネルガラスの外面にフィルタガラスのよ
うな平板状のガラス板を被着した陰極線管に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cathode ray tube in which a flat glass plate, such as a filter glass, is attached to the outer surface of a panel glass.
従来のこの種の陰極線管について、第1図にしたがって
説明する。図において、(1)はパネルガラス、(2)
Hファンネルガラス、(3)TI′iパネルガラス(1
)の外面(1b)に不飽和ポリエステル樹脂などの透明
樹脂層(4)を介して被着されたフィルタガラスである
。このような陰極線管において、パネルガラス(1)の
フェース部(1a)の内面(io)の湾曲の程度は一般
的に曲率半径で550〜570w程度であり、また外面
(1b)のそれは560−600 tax程度であった
。このため、フィルタガラス(3)を被着させる透明樹
脂層(4)の中央部(4a)と周辺部(4b)との間に
大きな厚みの差が生じ一樹脂の硬化過程で硬化が不均一
となることに起因して脈理現象を起こし易いという問題
があった。この脈理現象は、一般的に樹脂層(4)の厚
みが5■を越えると生じ易く、生じた部分の屈折率が周
囲と極端VC異なる結果、陰極線管にラスタを出した場
合に画面が非常に見すら(なる。A conventional cathode ray tube of this type will be explained with reference to FIG. In the figure, (1) is panel glass, (2)
H funnel glass, (3) TI'i panel glass (1
) is coated on the outer surface (1b) of the filter glass with a transparent resin layer (4) made of unsaturated polyester resin or the like interposed therebetween. In such a cathode ray tube, the degree of curvature of the inner surface (io) of the face portion (1a) of the panel glass (1) is generally about 550 to 570W in radius of curvature, and that of the outer surface (1b) is about 560-560W. It was about 600 tax. Therefore, there is a large difference in thickness between the central part (4a) and the peripheral part (4b) of the transparent resin layer (4) to which the filter glass (3) is attached, resulting in uneven curing during the curing process of the resin. There was a problem that striae phenomenon was likely to occur due to this. This striae phenomenon generally tends to occur when the thickness of the resin layer (4) exceeds 5 mm, and as a result of the refractive index of the generated portion being extremely different from the surrounding area by VC, the screen becomes distorted when a raster is displayed on the cathode ray tube. It's so hard to even look at it.
たとえば、パネルガラス(1)のフェース部(1B)の
外面(1b)が560wJIの曲率半径である8型の陰
極線管では、樹脂層(4)の中央部(4a)とこれより
98mm離れた周辺部(4b)の厚みの差は8.6■と
なり、平板状のフィルタガラス(3)を上記中央部(4
a)の厚みが18mとなるよう[して被着すると、周辺
部(4b)の厚みは10.4mとなって顕著な脈理現象
を引き起こす。For example, in an 8-inch cathode ray tube in which the outer surface (1b) of the face portion (1B) of the panel glass (1) has a radius of curvature of 560 wJI, the center portion (4a) of the resin layer (4) and the periphery 98 mm away from this The difference in the thickness of the part (4b) is 8.6 square meters, and the flat filter glass (3) is placed in the central part (4b).
When the thickness of a) is 18 m, the thickness of the peripheral part (4b) becomes 10.4 m, causing a remarkable striae phenomenon.
この発明は、上記従来の欠点を改善するためになされた
もので、パネルガラスのフェース部のわん曲の程度を小
さくすることにより、脈理現象が生じにくい陰極線管を
提供することを目的としている。This invention was made to improve the above-mentioned conventional drawbacks, and aims to provide a cathode ray tube in which the striae phenomenon is less likely to occur by reducing the degree of curvature of the face portion of the panel glass. .
上記目的を達成するために、この発明では、パネルガラ
スのフェース部の外面が、有効画面内における透明樹脂
層の周辺部と中央部との厚みの差をλ5慎以下とするよ
うな大きな曲率半径を有することを特徴としている。す
なわち、上記樹脂層の厚みの差がa5+mw以下であれ
ば、樹脂層の中央部の厚みを、フィルタガラスなどの平
板状のガラス板を被着して保持させるのに充分な厚みに
設定しても、有効画面内における樹脂層の周辺部の厚み
を脈理現象の生じない5調以下の厚みとすることができ
る。In order to achieve the above object, the present invention provides that the outer surface of the face portion of the panel glass has a large radius of curvature such that the difference in thickness between the peripheral portion and the central portion of the transparent resin layer within the effective screen is λ5 or less. It is characterized by having the following. That is, if the difference in the thickness of the resin layer is less than a5+mw, the thickness of the center part of the resin layer is set to be sufficient to adhere and hold a flat glass plate such as a filter glass. Also, the thickness of the peripheral portion of the resin layer within the effective screen can be set to a thickness of 5 tones or less where no striae phenomenon occurs.
以下、この発明の一実施例を図面にしたがって説明する
。第2図は、この発明を前記8型の陰極線管に適用した
ものである。図において、ガラスパネル(1)のフェー
ス部(1a)は、外面(1b)の曲率半径が2500m
m−内面(10)のそれが560調である。この場合、
透明樹脂層(4)の中央部(4a)とこれより98m離
れた周辺1(4b)との厚みの差は19閣であり、この
ためにフィルタガラス(3)をパネルガラス(1)のフ
ェース部(1&)の中心カラL 8 m li して被
着させたとき、周辺部(4’b)11’)厚みは3.7
m程度である。したがって、樹脂層(4)の厚みに起
因する脈理現象はほとんど発生せず、ごく稀に発生して
も非常に軽微で視認できない程度であり、実用上ではま
ったく問題はない。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows the invention applied to the 8-type cathode ray tube. In the figure, the face portion (1a) of the glass panel (1) has an outer surface (1b) with a radius of curvature of 2500 m.
The m-inner surface (10) is in 560th tone. in this case,
The difference in thickness between the central part (4a) of the transparent resin layer (4) and the periphery 1 (4b) 98 m away from this is 19 mm, so the filter glass (3) is attached to the face of the panel glass (1). When the center collar L 8 m li of the part (1&) is applied, the thickness of the peripheral part (4'b)11') is 3.7
It is about m. Therefore, the striae phenomenon due to the thickness of the resin layer (4) hardly occurs, and even if it occurs very rarely, it is very slight and cannot be visually recognized, and there is no problem at all in practical use.
以上のように、この発明の陰適線管では、パネルガラス
のフェース部の外面のわん曲のi & 全非常に小さく
設定しているため、従来では回避することが困難であっ
た上記樹脂層の脈理現象を皆無ないし大幅に低減できる
結果、見易く鮮明な画面を提供できる。As described above, in the implicit wire tube of the present invention, since the curvature of the outer surface of the face of the panel glass is set to be very small, the above-mentioned resin layer, which was difficult to avoid in the past, As a result, the striae phenomenon can be eliminated or greatly reduced, and as a result, an easy-to-read and clear screen can be provided.
第1図は従来の陰極線管を示す一部切欠した側面図、第
2図はこの発明の一実施例による陰極線管を示す一部切
欠した側面図である。
(1)・・・ガラスパネル、(1a)・・・フェース部
、(ib)・・・外面、(3)・・・フィルタガラス、
(4)・・・透明樹脂層、(4a)・・・中央部、(4
b)・・・周辺部。
なお、図中の同一符号は同一または相当部分を示す。
代理人 葛野信−(外1名)
第1図
4 第2図FIG. 1 is a partially cutaway side view showing a conventional cathode ray tube, and FIG. 2 is a partially cutaway side view showing a cathode ray tube according to an embodiment of the present invention. (1)...Glass panel, (1a)...Face portion, (ib)...Outer surface, (3)...Filter glass,
(4)...Transparent resin layer, (4a)...Central part, (4
b) ... peripheral area. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Makoto Kuzuno (1 other person) Figure 1 4 Figure 2
Claims (1)
介して平板状のガラス板が被着された陰極線管において
、上記パネルガラスのフェース部の外面は、有効画面内
における上記透明樹脂層の周辺部と中央部との厚みの差
が2.5w以下となるようなわん曲面で形成されたこと
を特徴とする陰極線管。(1) In a cathode ray tube in which a flat glass plate is attached to the outer surface of the face of the panel glass through a transparent resin layer, the outer surface of the face of the panel glass is the same as the transparent resin layer within the effective screen. A cathode ray tube characterized in that it is formed with a curved surface such that the difference in thickness between the peripheral part and the central part is 2.5W or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10842281A JPS5810358A (en) | 1981-07-10 | 1981-07-10 | Cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10842281A JPS5810358A (en) | 1981-07-10 | 1981-07-10 | Cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5810358A true JPS5810358A (en) | 1983-01-20 |
Family
ID=14484358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10842281A Pending JPS5810358A (en) | 1981-07-10 | 1981-07-10 | Cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5810358A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3524899A1 (en) * | 1984-07-16 | 1986-01-23 | General Electric Co., Schenectady, N.Y. | COLOR CATHODE JET PIPES |
KR100556458B1 (en) * | 1998-10-13 | 2006-04-21 | 엘지전자 주식회사 | panel in cathode ray tube |
-
1981
- 1981-07-10 JP JP10842281A patent/JPS5810358A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3524899A1 (en) * | 1984-07-16 | 1986-01-23 | General Electric Co., Schenectady, N.Y. | COLOR CATHODE JET PIPES |
KR100556458B1 (en) * | 1998-10-13 | 2006-04-21 | 엘지전자 주식회사 | panel in cathode ray tube |
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