JPS63157792U - - Google Patents
Info
- Publication number
- JPS63157792U JPS63157792U JP4895487U JP4895487U JPS63157792U JP S63157792 U JPS63157792 U JP S63157792U JP 4895487 U JP4895487 U JP 4895487U JP 4895487 U JP4895487 U JP 4895487U JP S63157792 U JPS63157792 U JP S63157792U
- Authority
- JP
- Japan
- Prior art keywords
- specific mark
- reading
- image
- liquid crystal
- projection
- 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 7
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の液晶オーバーヘツドプロジエ
クタのブロツク図、第２図ａは本考案の一実施例
に係る液晶オーバーヘツドプロジエクタのブロツ
ク構成図、同図ｂは投影されるべき画像が形成さ
れた原稿の平面図、第３図は第２図のＲＡＭ制御
部の処理動作を説明するためのフローチヤートで
ある。
１……読取り手段、２……原稿、２ａ……特定
マーク、３……画像記憶手段、４……投影手段、
５……光源、６……液晶シヤツタ、７……光学手
段、８……特定マーク認識手段、９……指定手段
、１０……投影制御手段。
FIG. 1 is a block diagram of a liquid crystal overhead projector according to the present invention, FIG. 2a is a block diagram of a liquid crystal overhead projector according to an embodiment of the present invention, and FIG. FIG. 3 is a flowchart for explaining the processing operation of the RAM control section of FIG. 2. 1...Reading means, 2...Document, 2a...Specific mark, 3...Image storage means, 4...Projection means,
5...Light source, 6...Liquid crystal shutter, 7...Optical means, 8...Specific mark recognition means, 9...Designation means, 10...Projection control means.
Claims (1)
記読取り手段によつて読取つた原稿上の画像を記
憶するための画像記憶手段と、光源と液晶シヤツ
タと上記液晶シヤツタからの透過光をスクリーン
に向けるための光学手段とを有する投影手段と、
上記読取り手段の読取り出力に基づき上記原稿上
に付された特定マークの有無を識別すると共に上
記特定マークが有つた場合にその特定マークの位
置を記憶するための特定マーク認識手段と、上記
特定マーク位置を基準とする部分投影範囲を指定
するための指定手段と、上記特定マーク認識手段
に記憶された上記特定マークの位置及び上記指定
手段によつて指定された部分投影範囲に基いて、
上記画像記憶手段に記憶された画像を読出し、そ
の読出した画像に応じて上記投影手段の液晶シヤ
ツタを制御するための投影制御手段とを具備して
成ることを特徴とする液晶オーバーヘツドプロジ
エクタ。 a reading means for reading an image on a document, an image storage means for storing an image on the document read by the reading means, a light source, a liquid crystal shutter, and a light source that directs transmitted light from the liquid crystal shutter to a screen. projection means having optical means for;
a specific mark recognition device for identifying the presence or absence of a specific mark attached to the document based on the reading output of the reading device and storing the position of the specific mark when the specific mark is present; and the specific mark a specifying means for specifying a partial projection range based on the position, the position of the specific mark stored in the specific mark recognition means and the partial projection range specified by the specifying means,
A liquid crystal overhead projector comprising projection control means for reading an image stored in the image storage means and controlling a liquid crystal shutter of the projection means according to the read image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4895487U JPS63157792U (en) | 1987-04-02 | 1987-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4895487U JPS63157792U (en) | 1987-04-02 | 1987-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63157792U true JPS63157792U (en) | 1988-10-17 |
Family
ID=30870965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4895487U Pending JPS63157792U (en) | 1987-04-02 | 1987-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63157792U (en) |
-
1987
- 1987-04-02 JP JP4895487U patent/JPS63157792U/ja active Pending
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