JPH01149168U - - Google Patents
Info
- Publication number
- JPH01149168U JPH01149168U JP4576888U JP4576888U JPH01149168U JP H01149168 U JPH01149168 U JP H01149168U JP 4576888 U JP4576888 U JP 4576888U JP 4576888 U JP4576888 U JP 4576888U JP H01149168 U JPH01149168 U JP H01149168U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- reading device
- contact glass
- image signal
- signal reading
- 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
- 239000011521 glass Substances 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
Description
第１図は本考案の第１の実施例におけるシエー
デイング板の説明図、第２図は従来の画像読取装
置における読み取り光源の光量分布の説明図、第
３図は従来の画像読取装置における白色原稿の認
識の説明図、第４図は本考案の第１の実施例にお
ける画像読取装置の一部を示す構成図、第５図は
本考案の第２の実施例におけるシエーデイング板
の説明図、第６図は本考案の第３の実施例におけ
るシエーデイング板の説明図、第７図は本考案の
第４の実施例におけるシエーデイング板の説明図
である。
１：加圧ローラ、２：搬送ローラ、３：蛍光灯
、４：ミラー、５：圧板、６：ガイド板、７：読
み取りライン検知センサ、８：結像レンズ、９：
読み取り素子（ＣＣＤ）、１０：コンタクトガラ
ス、１１：シエーデイング板。
FIG. 1 is an explanatory diagram of a shading plate in the first embodiment of the present invention, FIG. 2 is an explanatory diagram of the light intensity distribution of a reading light source in a conventional image reading device, and FIG. 3 is a diagram of a white original in a conventional image reading device. 4 is a block diagram showing a part of the image reading device in the first embodiment of the present invention. FIG. 5 is an explanatory diagram of the shading plate in the second embodiment of the present invention. FIG. 6 is an explanatory diagram of a shading plate according to a third embodiment of the present invention, and FIG. 7 is an explanatory diagram of a shading plate according to a fourth embodiment of the present invention. 1: Pressure roller, 2: Conveyance roller, 3: Fluorescent lamp, 4: Mirror, 5: Pressure plate, 6: Guide plate, 7: Reading line detection sensor, 8: Imaging lens, 9:
Reading element (CCD), 10: contact glass, 11: shading plate.
Claims (1)
のミラーと、結像レンズと、コンタクトガラスと
を備えた画信号読取装置において、上記コンタク
トガラスの光源側には、原稿に対する上記読み取
り光源の照射光量の透過を補正するシエーデイン
グ板を付着したことを特徴とする画信号読取装置
。 In an image signal reading device that includes a reading light source, a pressure plate, a mirror for folding the optical path, an imaging lens, and a contact glass, the light source side of the contact glass has a light source that reflects the amount of light irradiated by the reading light source on the original. An image signal reading device characterized in that a shading plate for correcting transmission is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4576888U JPH01149168U (en) | 1988-04-05 | 1988-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4576888U JPH01149168U (en) | 1988-04-05 | 1988-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149168U true JPH01149168U (en) | 1989-10-16 |
Family
ID=31272065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4576888U Pending JPH01149168U (en) | 1988-04-05 | 1988-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149168U (en) |
-
1988
- 1988-04-05 JP JP4576888U patent/JPH01149168U/ja active Pending
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