JPH0423368U - - Google Patents
Info
- Publication number
- JPH0423368U JPH0423368U JP6331790U JP6331790U JPH0423368U JP H0423368 U JPH0423368 U JP H0423368U JP 6331790 U JP6331790 U JP 6331790U JP 6331790 U JP6331790 U JP 6331790U JP H0423368 U JPH0423368 U JP H0423368U
- Authority
- JP
- Japan
- Prior art keywords
- image
- document
- line sensor
- converted
- pixel density
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Description
第１図は本考案にかかる画像読取装置の一実施
例の電気的構成部分を示す構成図、第２図は前記
実施例の光学的構成部分を示す構成図、第３図は
ラインセンサと縮小原稿との関係を示す説明図で
ある。
１０……反射原稿、１２，２０……原稿ステー
ジ、１４，１６，２２……光源、１８……透過原
稿、２４，２６，２８……ミラー、３０……結像
光学系、３２……ラインセンサ、３４……画素密
度変換装置、３８ａ，３８ｂ，〜３８ｎ……密度
変換演算回路（電気的フイルタ手段）、４０……
セレクタ回路（出力選択手段）、４６……コント
ロール回路、５０……ゲート回路。
FIG. 1 is a block diagram showing the electrical components of an embodiment of an image reading device according to the present invention, FIG. 2 is a block diagram showing the optical components of the embodiment, and FIG. 3 is a line sensor and a reduced scale. FIG. 3 is an explanatory diagram showing the relationship with a manuscript. 10... Reflective original, 12, 20... Original stage, 14, 16, 22... Light source, 18... Transmissive original, 24, 26, 28... Mirror, 30... Imaging optical system, 32... Line Sensor, 34...Pixel density conversion device, 38a, 38b, ~38n...Density conversion calculation circuit (electric filter means), 40...
Selector circuit (output selection means), 46... control circuit, 50... gate circuit.
Claims (1)
ンサに投影するとともに、原稿とラインセンサと
の相対的な移動を行なつて原稿の画像を二次元的
に読み取る画像読取装置において、 前記原稿の全幅投影像を、所望の変換すべき画
素密度に対応して前記ラインセンサ受光部の一部
分に縮小して投影可能な投影光学手段と、ライン
センサの出力画像信号に対して帯域制限を行なう
複数の電気的フイルタ手段と、これらのフイルタ
手段の出力のいずれかを所望の変換すべき画素密
度に対応して選択する出力選択手段とを備えたこ
とを特徴とする画像読取装置。[Claim for Utility Model Registration] An image in which the image of a document placed on a stage is projected onto a line sensor, and the image of the document is read two-dimensionally by moving the document and the line sensor relative to each other. In the reading device, a projection optical means capable of reducing and projecting a full-width projected image of the document onto a portion of the line sensor light receiving area corresponding to a desired pixel density to be converted; An image reading device comprising: a plurality of electrical filter means for performing band limitation; and an output selection means for selecting one of the outputs of these filter means in accordance with a desired pixel density to be converted. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6331790U JPH0423368U (en) | 1990-06-15 | 1990-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6331790U JPH0423368U (en) | 1990-06-15 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0423368U true JPH0423368U (en) | 1992-02-26 |
Family
ID=31593258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6331790U Pending JPH0423368U (en) | 1990-06-15 | 1990-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423368U (en) |
-
1990
- 1990-06-15 JP JP6331790U patent/JPH0423368U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0276722U (en) | ||
| JPH0436363U (en) | ||
| JPH0365709B2 (en) | ||
| JPH0425364U (en) | ||
| JPH0266072U (en) | ||
| JPS63125046A (en) | Film image reading device | |
| JPH0438174U (en) | ||
| JPS63152369U (en) | ||
| JPH0392028U (en) | ||
| JPS6077158U (en) | Image reading device | |
| JPS63172566A (en) | image reading device | |
| JPH03121658A (en) | image reading device | |
| JPH0435154A (en) | Picture reader | |
| JPS59224971A (en) | How to copy three-dimensional objects | |
| JPS6152062A (en) | Picture reading device | |
| JPS6349540U (en) | ||
| JPH01160768U (en) | ||
| JPS63102360U (en) | ||
| JPS614947U (en) | overhead projector | |
| JPH0243061U (en) | ||
| JPH044458U (en) | ||
| JPS6393262A (en) | Picture processor | |
| JPH09321957A (en) | Image input device | |
| JPS564116A (en) | Optical device | |
| JPH02150872U (en) |