JPH0394888U - - Google Patents
Info
- Publication number
- JPH0394888U JPH0394888U JP324490U JP324490U JPH0394888U JP H0394888 U JPH0394888 U JP H0394888U JP 324490 U JP324490 U JP 324490U JP 324490 U JP324490 U JP 324490U JP H0394888 U JPH0394888 U JP H0394888U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- sensor
- crystal projector
- projection
- main body
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は本考案の一実施例を示すプロジエクタ
ーの模式図、第２図は同実施例の動作状態を説明
するための図、第３図は従来のプロジエクターを
示す図である。
１……プロジエクター本体、２……光源、３…
…スクリーン、４……液晶パネル、５……映像信
号処理回路、７……投射レンズ、８……物体検出
センサ、９……制御回路、１０……シヤツタ、１
１……シヤツタ駆動回路。
FIG. 1 is a schematic diagram of a projector showing an embodiment of the present invention, FIG. 2 is a diagram for explaining the operating state of the embodiment, and FIG. 3 is a diagram showing a conventional projector. 1...Projector main body, 2...Light source, 3...
... Screen, 4 ... Liquid crystal panel, 5 ... Video signal processing circuit, 7 ... Projection lens, 8 ... Object detection sensor, 9 ... Control circuit, 10 ... Shutter, 1
1...Shutter drive circuit.
Claims (1)
射された光を通過させて変調を施し、光学系を介
して投影画像を形成する液晶プロジエクターにお
いて、本体ケースの投射面と対向する位置に物体
検出センサーを設け、該センサーの出力を投射遮
断手段に導入してなることを特徴とする液晶プロ
ジエクター。 In a liquid crystal projector that passes light emitted from a light source through a liquid crystal panel into which display information is input, modulates it, and forms a projected image via an optical system, an object is detected at a position facing the projection surface of the main body case. A liquid crystal projector comprising a sensor, and the output of the sensor is introduced into projection blocking means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP324490U JPH0394888U (en) | 1990-01-17 | 1990-01-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP324490U JPH0394888U (en) | 1990-01-17 | 1990-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0394888U true JPH0394888U (en) | 1991-09-27 |
Family
ID=31507074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP324490U Pending JPH0394888U (en) | 1990-01-17 | 1990-01-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0394888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001249399A (en) * | 1999-12-28 | 2001-09-14 | Sony Corp | Image-projecting method and apparatus |
-
1990
- 1990-01-17 JP JP324490U patent/JPH0394888U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001249399A (en) * | 1999-12-28 | 2001-09-14 | Sony Corp | Image-projecting method and apparatus |
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