JPS61199967U - - Google Patents
Info
- Publication number
- JPS61199967U JPS61199967U JP8435285U JP8435285U JPS61199967U JP S61199967 U JPS61199967 U JP S61199967U JP 8435285 U JP8435285 U JP 8435285U JP 8435285 U JP8435285 U JP 8435285U JP S61199967 U JPS61199967 U JP S61199967U
- Authority
- JP
- Japan
- Prior art keywords
- document
- light
- detecting
- image sensor
- light source
- 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 description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Facsimiles In General (AREA)
Description
第１図は本考案による原稿サイズ検知装置の斜
視図、第２図は画像読取ユニツトの概略側面図、
第３図は画像入力装置の斜視図、第４図は原稿サ
イズを求める説明のための図である。
１：プラテンカバー、２ａ，２ｂ：光源、３：
レンズ、４：イメージセンサ、５：画像読取ユニ
ツト、Ａ：原稿、Ｂ：影、Ｐ，Ｑ：起動点。
FIG. 1 is a perspective view of a document size detection device according to the present invention, and FIG. 2 is a schematic side view of an image reading unit.
FIG. 3 is a perspective view of the image input device, and FIG. 4 is a diagram for explaining how to determine the document size. 1: platen cover, 2a, 2b: light source, 3:
Lens, 4: Image sensor, 5: Image reading unit, A: Original, B: Shadow, P, Q: Starting point.
Claims (1)
して設けられ上記原稿を照射する光源と、上記原
稿を覆うプラテンカバーと、上記原稿からの反射
光を検出するイメージセンサと、このイメージセ
ンサの出力に基づき、上記光源からの光により上
記プラテンカバーに生じる上記原稿の端部の影の
位置を検出し上記原稿のサイズを検出する手段と
を備えた原稿サイズ検知装置。 A light source whose optical axis is inclined in the sub-scanning direction with respect to the surface of the document and irradiates the document, a platen cover that covers the document, an image sensor that detects reflected light from the document, and an image sensor that detects reflected light from the document. A document size detection device comprising: means for detecting the position of a shadow of an edge of the document produced on the platen cover by light from the light source, based on the output of a sensor, and detecting the size of the document.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8435285U JPS61199967U (en) | 1985-06-03 | 1985-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8435285U JPS61199967U (en) | 1985-06-03 | 1985-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199967U true JPS61199967U (en) | 1986-12-15 |
Family
ID=30633793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8435285U Pending JPS61199967U (en) | 1985-06-03 | 1985-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199967U (en) |
-
1985
- 1985-06-03 JP JP8435285U patent/JPS61199967U/ja active Pending
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