JPS5873682U - Projection television equipment - Google Patents
Projection television equipmentInfo
- Publication number
- JPS5873682U JPS5873682U JP16829381U JP16829381U JPS5873682U JP S5873682 U JPS5873682 U JP S5873682U JP 16829381 U JP16829381 U JP 16829381U JP 16829381 U JP16829381 U JP 16829381U JP S5873682 U JPS5873682 U JP S5873682U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- projection
- center
- lenses
- projection television
- 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
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はスクリーン投写装置の関係を示す図、第２図は
スクリーン上における投写歪の水平台形歪を示す図、第
３図は通常のカラー投写装置を示す図、第４図は第３図
のカラー投写装置によるスクリーン上のミスコンバーゼ
ンスを示す図、第５図は原理上スクリーン面上に投写歪
を有しない投写型テレビジョン装置の光学系を示す図、
第６図は本考案にかかわる投写型テレビジョン装置を示
す図である。 ・
１・・・・・・投写用ＣＲＴ、２・・・・・・レンズ、
３・・・・・・投写光軸、４・・・・・・スクリーン。
第３図
第４図Figure 1 is a diagram showing the relationship between screen projection devices, Figure 2 is a diagram showing horizontal trapezoidal distortion of projection distortion on the screen, Figure 3 is a diagram showing a normal color projection device, and Figure 4 is Figure 3. FIG. 5 is a diagram showing the misconvergence on the screen caused by the color projection device of FIG.
FIG. 6 is a diagram showing a projection television apparatus according to the present invention.・ 1... CRT for projection, 2... Lens,
3...Projection optical axis, 4...Screen. Figure 3 Figure 4
Claims (1)
してスクリーンに投写映出する投写型テレビジョン装置
において、それぞれのレンズの光、 軸を互いに平行と
し、中心に位置するレンズと投写管の組を除いて、その
他のレンズの光軸と投写管の螢光面上の再生画像の中心
とをずらし、しかもこの光軸をずらして用いるレンズの
形状は、中心に位置するレンズの側の一部分が削除され
た形状をなし、削除された残りのレンズの中心部を含む
部分が螢光面上を覆うように構成することを特徴とする
投写型テレビジョン装置。In a projection television device that projects images on the fluorescent surfaces of multiple projection tubes onto a screen through multiple lenses, the light and axes of each lens are parallel to each other, and the lens and projection tube are located at the center. With the exception of the pair of lenses, the optical axis of the other lenses is shifted from the center of the reproduced image on the fluorescent surface of the projection tube, and the shape of the lens used with this optical axis shifted is to 1. A projection type television device, characterized in that it has a shape in which a portion of the lens has been removed, and the portion including the center of the remaining lens that has been removed covers a fluorescent surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16829381U JPS5873682U (en) | 1981-11-13 | 1981-11-13 | Projection television equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16829381U JPS5873682U (en) | 1981-11-13 | 1981-11-13 | Projection television equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5873682U true JPS5873682U (en) | 1983-05-18 |
Family
ID=29960345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16829381U Pending JPS5873682U (en) | 1981-11-13 | 1981-11-13 | Projection television equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741610A (en) * | 2013-06-07 | 2018-02-27 | 夏普株式会社 | Daylighting film, glass pane, roller shutter and Lighting shutter |
-
1981
- 1981-11-13 JP JP16829381U patent/JPS5873682U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741610A (en) * | 2013-06-07 | 2018-02-27 | 夏普株式会社 | Daylighting film, glass pane, roller shutter and Lighting shutter |
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