JPH0226858U - - Google Patents
Info
- Publication number
- JPH0226858U JPH0226858U JP10436488U JP10436488U JPH0226858U JP H0226858 U JPH0226858 U JP H0226858U JP 10436488 U JP10436488 U JP 10436488U JP 10436488 U JP10436488 U JP 10436488U JP H0226858 U JPH0226858 U JP H0226858U
- Authority
- JP
- Japan
- Prior art keywords
- white
- document
- document reading
- light
- reference plate
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10436488U JPH0226858U (cs) | 1988-08-06 | 1988-08-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10436488U JPH0226858U (cs) | 1988-08-06 | 1988-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0226858U true JPH0226858U (cs) | 1990-02-21 |
Family
ID=31336014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10436488U Pending JPH0226858U (cs) | 1988-08-06 | 1988-08-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0226858U (cs) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5964963A (ja) * | 1982-10-06 | 1984-04-13 | Canon Inc | 情報読取り装置 |
JPS60123167A (ja) * | 1983-12-07 | 1985-07-01 | Canon Inc | シェーディング歪補正方法 |
JPS60126969A (ja) * | 1983-12-14 | 1985-07-06 | Ricoh Co Ltd | シェ−ディング補正装置 |
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1988
- 1988-08-06 JP JP10436488U patent/JPH0226858U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5964963A (ja) * | 1982-10-06 | 1984-04-13 | Canon Inc | 情報読取り装置 |
JPS60123167A (ja) * | 1983-12-07 | 1985-07-01 | Canon Inc | シェーディング歪補正方法 |
JPS60126969A (ja) * | 1983-12-14 | 1985-07-06 | Ricoh Co Ltd | シェ−ディング補正装置 |