JPH01100131U - - Google Patents
Info
- Publication number
- JPH01100131U JPH01100131U JP19558487U JP19558487U JPH01100131U JP H01100131 U JPH01100131 U JP H01100131U JP 19558487 U JP19558487 U JP 19558487U JP 19558487 U JP19558487 U JP 19558487U JP H01100131 U JPH01100131 U JP H01100131U
- Authority
- JP
- Japan
- Prior art keywords
- document
- light source
- detection sensor
- information
- display device
- 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
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図は本考案の一実施例表示装置を示す構成
図、第２図は従来の表示装置の構造を示す構成図
である。
Ｌ…光源、Ｂ…原稿台、Ｓ…原稿、Ｗ…光源の
電源スイツチ、Ｃ…原稿検出用センサ、Ｅ…光源
点灯制御装置、Ｍ…光の方向を変える鏡、Ｄ…原
稿が投影されるスクリーン。
FIG. 1 is a block diagram showing a display device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the structure of a conventional display device. L...Light source, B...Original table, S...Original, W...Light source power switch, C...Sensor for detecting the original, E...Light source lighting control device, M...Mirror that changes the direction of light, D...The original is projected. screen.
Claims (1)
過拡大して所定のスクリーンに投影する形式の表
示装置において、 前記台上に前記原稿が在るか否かを検出した情
報を出力する原稿検出用センサと、 この原稿検出用センサから前記情報の転送を受
け、この情報を解読することによつて前記台上に
原稿が在るときには前記光源を点灯し、ないとき
には前記光源の点灯を停止するよう制御する光源
点灯制御装置とを設け、 前記台上の原稿の有無に反応して前記スクリー
ン上の表示を自動的に開始もしくは終了すること
を特徴とした表示装置。[Claims for Utility Model Registration] In a display device that transmits and magnifies a document placed on a table using light from a light source and projects it on a predetermined screen, whether or not the document is on the table. a document detection sensor that outputs information on whether the document is detected; and a document detection sensor that receives the information from the document detection sensor, and by decoding this information, turns on the light source when there is a document on the table. and a light source lighting control device that controls the lighting of the light source to stop when there is no original, and the display on the screen automatically starts or ends in response to the presence or absence of a document on the table. Display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19558487U JPH01100131U (en) | 1987-12-23 | 1987-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19558487U JPH01100131U (en) | 1987-12-23 | 1987-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100131U true JPH01100131U (en) | 1989-07-05 |
Family
ID=31486257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19558487U Pending JPH01100131U (en) | 1987-12-23 | 1987-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100131U (en) |
-
1987
- 1987-12-23 JP JP19558487U patent/JPH01100131U/ja active Pending
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