JPS61195154U - - Google Patents
Info
- Publication number
- JPS61195154U JPS61195154U JP7706185U JP7706185U JPS61195154U JP S61195154 U JPS61195154 U JP S61195154U JP 7706185 U JP7706185 U JP 7706185U JP 7706185 U JP7706185 U JP 7706185U JP S61195154 U JPS61195154 U JP S61195154U
- Authority
- JP
- Japan
- Prior art keywords
- document
- optical system
- imaging optical
- document table
- photoelectric converter
- 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 8
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Facsimiles In General (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図は本考案の一実施例における情報読取装
置の要部構成図、第２図は焦点惚けの度合いを示
す特性図、第３図は従来の情報読取り装置の概略
構成図、第４図はその要部構成図である。
１……装置筐体、２……原稿台、２ａ……原稿
載置面、３……照明用光源、４……結像光学系、
４ａ……結像レンズ、４ｂ……反射鏡、５……光
電変換器、６……光学ユニツト、７……ステツプ
モータ、８……原稿、８ａ……原稿の綴込み部分
、９……伝達機構、Ｏ……光学ユニツトの最適物
面位置、ｌ……最適物面位置Ｏと原稿載置面２ａ
との離間距離。
Fig. 1 is a block diagram of the main parts of an information reading device according to an embodiment of the present invention, Fig. 2 is a characteristic diagram showing the degree of defocus, Fig. 3 is a schematic block diagram of a conventional information reading device, and Fig. 4 is a configuration diagram of its main parts. DESCRIPTION OF SYMBOLS 1...Device housing, 2...Document stand, 2a...Document placement surface, 3...Light source for illumination, 4...Imaging optical system,
4a...Imaging lens, 4b...Reflector, 5...Photoelectric converter, 6...Optical unit, 7...Step motor, 8...Document, 8a...Document binding part, 9...Transmission mechanism , O...optimum object surface position of the optical unit, l...optimum object surface position O and document placement surface 2a
separation distance.
Claims (1)
換器および結像光学系を有する光学ユニツトを相
対的に移動させることにより上記原稿の読取面を
読取走査する情報読取装置において、前記原稿台
、光学ユニツトの結像光学系および光電変換器の
相対位置を、原稿台の原稿載置面が前記結像光学
系の焦点距離および結像倍率により定まる最適物
面位置より所定距離だけ結像光学系側に位置する
べく設定したことを特徴とする情報読取装置。 In an information reading device that reads and scans the reading surface of a document placed on a document table by moving an optical unit having a photoelectric converter and an imaging optical system relative to the reading surface of the document placed on the document table, , the relative positions of the imaging optical system and the photoelectric converter of the optical unit are adjusted such that the document placement surface of the document table is a predetermined distance from the optimal object plane position determined by the focal length and imaging magnification of the imaging optical system. An information reading device characterized in that it is set to be located on the system side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7706185U JPS61195154U (en) | 1985-05-23 | 1985-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7706185U JPS61195154U (en) | 1985-05-23 | 1985-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61195154U true JPS61195154U (en) | 1986-12-05 |
Family
ID=30619779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7706185U Pending JPS61195154U (en) | 1985-05-23 | 1985-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195154U (en) |
-
1985
- 1985-05-23 JP JP7706185U patent/JPS61195154U/ja active Pending
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