JPH024382U - - Google Patents
Info
- Publication number
- JPH024382U JPH024382U JP8224788U JP8224788U JPH024382U JP H024382 U JPH024382 U JP H024382U JP 8224788 U JP8224788 U JP 8224788U JP 8224788 U JP8224788 U JP 8224788U JP H024382 U JPH024382 U JP H024382U
- Authority
- JP
- Japan
- Prior art keywords
- cap
- arm
- optical system
- image
- television receiver
- 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
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案に係るプロジエクシヨンテレビ
ジヨン受像機の要部の概略構成図、第２図はキヤ
ツプ本体の動きを示す説明図、第３図はプロジエ
クシヨンテレビジヨン受像機の概略構成図である
。
１０……光学系、２０……キヤツプ、３０……
キヤツプ移動部、３１……アーム、３２……アー
ム加熱回路、４０……ＣＲＴ４０、５０……スク
リーン。
Figure 1 is a schematic diagram of the main parts of a projection television receiver according to the present invention, Figure 2 is an explanatory diagram showing the movement of the cap body, and Figure 3 is a schematic diagram of the construction of a projection television receiver. It is a diagram. 10...optical system, 20...cap, 30...
Cap moving unit, 31...arm, 32...arm heating circuit, 40...CRT40, 50...screen.
Claims (1)
の拡大画像をスクリーンに表示するプロジエクシ
ヨンテレビジヨン受像機において、前記光学系の
前面をカバーするキヤツプと、キヤツプが光学系
の前面をカバーするクローズ位置と前記拡大画像
を遮らないオープン位置とにわたつてキヤツプを
移動させるキヤツプ移動部とを具備しており、前
記キヤツプ移動部はキヤツプに設けられ、かつ臨
界温度以上ではキヤツプを前記オープン位置に位
置させる形状記憶合金からなるアームと、ＣＲＴ
が画像を表示している場合にのみ前記アームを臨
界温度以上に加熱するアーム加熱回路とを有して
いることを特徴とするプロジエクシヨンテレビジ
ヨン受像機。 A projection television receiver that enlarges an image displayed on a CRT using an optical system and displays the enlarged image on a screen includes a cap that covers the front surface of the optical system, and a cap that covers the front surface of the optical system. a cap moving section for moving the cap between a closed position and an open position that does not block the enlarged image; the cap moving section is provided on the cap and moves the cap to the open position when the temperature exceeds a critical temperature; An arm made of shape memory alloy to be positioned and a CRT
1. A projection television receiver comprising: an arm heating circuit that heats the arm above a critical temperature only when the arm is displaying an image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8224788U JPH024382U (en) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8224788U JPH024382U (en) | 1988-06-20 | 1988-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024382U true JPH024382U (en) | 1990-01-11 |
Family
ID=31307010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8224788U Pending JPH024382U (en) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH058526U (en) * | 1991-07-18 | 1993-02-05 | 旭光学工業株式会社 | Projector |
-
1988
- 1988-06-20 JP JP8224788U patent/JPH024382U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH058526U (en) * | 1991-07-18 | 1993-02-05 | 旭光学工業株式会社 | Projector |