JPS60129781U - projection television - Google Patents
projection televisionInfo
- Publication number
- JPS60129781U JPS60129781U JP1672484U JP1672484U JPS60129781U JP S60129781 U JPS60129781 U JP S60129781U JP 1672484 U JP1672484 U JP 1672484U JP 1672484 U JP1672484 U JP 1672484U JP S60129781 U JPS60129781 U JP S60129781U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- projection
- optical axis
- normal line
- 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
- Transforming Electric Information Into Light Information (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の投写形会レビジョンの略解断面図、第２
図は該投写形テレビジョンめ外光、不要光の影響を示す
説明図、第３図は該投写形テレビジョンの投写管の画面
を示す図、第４図は該投写管の電気回路の電流波形図、
第５図は本考案の投写形テレビジョン−の第ｉ実施例を
示す略解断面図、第６図は該投写形テレビジョンの効果
を示す説明図′、第７図は該投写形テレビジョンの投写
管、の画面を示す図、第８図は該投写管の電気回路の電
流波形図、第９図は第二実施例を示す略解断面図である
。
１・・・キャビネット、１４・・・スクリーン、１５・
・・投写管、１６〜１８・・・レンズ、１９，２０，２
２．２３・・・ミラー、２１．２６・・・ミラー内蔵レ
ンズ装置、２４・・・偏心フレネルレンズ。
第３図
第６図 −。Figure 1 is a schematic cross-sectional view of the conventional projection form revision, Figure 2
The figure is an explanatory diagram showing the influence of external light and unnecessary light on the projection television, Figure 3 is a diagram showing the screen of the projection tube of the projection television, and Figure 4 is the current of the electrical circuit of the projection tube. waveform diagram,
FIG. 5 is a schematic cross-sectional view showing the i-th embodiment of the projection television of the present invention, FIG. 6 is an explanatory diagram showing the effects of the projection television, and FIG. FIG. 8 is a current waveform diagram of the electric circuit of the projection tube, and FIG. 9 is a schematic cross-sectional view showing the second embodiment. 1...cabinet, 14...screen, 15.
...Projection tube, 16-18...Lens, 19,20,2
2.23...Mirror, 21.26...Mirror built-in lens device, 24...Eccentric Fresnel lens. Figure 3 Figure 6 -.
Claims (1)
りその光軸をほぼ１８０°屈曲し、スクリーンにその法
線に対し傾斜して入射させて、該スクリーンで出射光軸
を法線に沿うように偏向する投写形テレビジョンにおい
て、前記レンズ系をスクリーンよりも上方に配置し、ミ
ラー系のうちスクリーンと対向するミラーを、該ミラー
の上部がそ・ の下部よりもスクリーンに接近する
如く傾斜させて、スクリーンへの入射光軸が該スクリー
ンの法線に対し下方に傾斜するように構成してなること
を特徴とする投写形テレビジョン。 、The image of the projection tube is magnified by a lens system, its optical axis is bent by approximately 180 degrees by a mirror system, and the image is incident on a screen at an angle to the normal line, and the output optical axis is aligned with the normal line on the screen. In a projection type television that is deflected as shown in FIG. A projection television, characterized in that the optical axis of incidence on the screen is inclined downward with respect to the normal line of the screen. ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672484U JPS60129781U (en) | 1984-02-10 | 1984-02-10 | projection television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672484U JPS60129781U (en) | 1984-02-10 | 1984-02-10 | projection television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60129781U true JPS60129781U (en) | 1985-08-30 |
Family
ID=30503765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1672484U Pending JPS60129781U (en) | 1984-02-10 | 1984-02-10 | projection television |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047988A (en) * | 1990-04-25 | 1992-01-13 | Pioneer Electron Corp | Rear projection television |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57121378A (en) * | 1981-01-21 | 1982-07-28 | Matsushita Electric Ind Co Ltd | Projection type television receiver |
| JPS58191580A (en) * | 1982-05-06 | 1983-11-08 | Matsushita Electric Ind Co Ltd | Projective type television device |
| JPS58197969A (en) * | 1982-05-14 | 1983-11-17 | Hitachi Ltd | Back projection type projection television |
-
1984
- 1984-02-10 JP JP1672484U patent/JPS60129781U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57121378A (en) * | 1981-01-21 | 1982-07-28 | Matsushita Electric Ind Co Ltd | Projection type television receiver |
| JPS58191580A (en) * | 1982-05-06 | 1983-11-08 | Matsushita Electric Ind Co Ltd | Projective type television device |
| JPS58197969A (en) * | 1982-05-14 | 1983-11-17 | Hitachi Ltd | Back projection type projection television |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047988A (en) * | 1990-04-25 | 1992-01-13 | Pioneer Electron Corp | Rear projection television |
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