CA2077860A1 - Image scanner - Google Patents
Image scannerInfo
- Publication number
- CA2077860A1 CA2077860A1 CA2077860A CA2077860A CA2077860A1 CA 2077860 A1 CA2077860 A1 CA 2077860A1 CA 2077860 A CA2077860 A CA 2077860A CA 2077860 A CA2077860 A CA 2077860A CA 2077860 A1 CA2077860 A1 CA 2077860A1
- Authority
- CA
- Canada
- Prior art keywords
- original
- image sensor
- original copy
- polarizing
- light
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00795—Reading arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/043—Viewing the scanned area
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Holders For Sensitive Materials And Originals (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
An image scanner including an original holder 12 for holding an original copy 11 placed on a transparent original support plate 10 in place. The original copy 11 is illuminated by a light source 13 and a reflected light 18 from the original copy 11 is received by an image sensor 14.
To check a position of the original copy 11 visually while the original holder 12 is closed, the original holder 12 comprises a transparent first polarizing plate having a first polarizing angle. An external light coming inside the case body through the first polarizing plate is prevented from reaching the image sensor 14 by a second polarizing plate 16 which has a second polarizing angle rotated by 90°
from the first polarizing angle and is disposed between the original copy 11 and the image sensor 14 in a light path of a light incoming into the image sensor 14.
To check a position of the original copy 11 visually while the original holder 12 is closed, the original holder 12 comprises a transparent first polarizing plate having a first polarizing angle. An external light coming inside the case body through the first polarizing plate is prevented from reaching the image sensor 14 by a second polarizing plate 16 which has a second polarizing angle rotated by 90°
from the first polarizing angle and is disposed between the original copy 11 and the image sensor 14 in a light path of a light incoming into the image sensor 14.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3-229067 | 1991-09-09 | ||
JP3229067A JPH0568147A (en) | 1991-09-09 | 1991-09-09 | Original reader |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2077860A1 true CA2077860A1 (en) | 1993-03-10 |
CA2077860C CA2077860C (en) | 1996-04-30 |
Family
ID=16886220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002077860A Expired - Fee Related CA2077860C (en) | 1991-09-09 | 1992-09-09 | Image scanner |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPH0568147A (en) |
KR (1) | KR960008377B1 (en) |
CA (1) | CA2077860C (en) |
DE (1) | DE4230173C2 (en) |
GB (1) | GB2259371B (en) |
TW (1) | TW256809B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625469A (en) * | 1995-06-29 | 1997-04-29 | Agfa Division, Bayer Corp. | Apparatus for alignment of material to be scanned in a flat-bed scanner |
GB2309087A (en) * | 1996-01-10 | 1997-07-16 | Michael Waddingham | Photocopiers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63218935A (en) * | 1987-03-09 | 1988-09-12 | Toshiba Eng Co Ltd | Confirming device for original of copying machine |
-
1991
- 1991-09-09 JP JP3229067A patent/JPH0568147A/en active Pending
-
1992
- 1992-03-07 TW TW081101742A patent/TW256809B/zh active
- 1992-09-08 KR KR92016388A patent/KR960008377B1/en not_active IP Right Cessation
- 1992-09-09 CA CA002077860A patent/CA2077860C/en not_active Expired - Fee Related
- 1992-09-09 GB GB9219061A patent/GB2259371B/en not_active Expired - Fee Related
- 1992-09-09 DE DE4230173A patent/DE4230173C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0568147A (en) | 1993-03-19 |
KR930007196A (en) | 1993-04-22 |
GB9219061D0 (en) | 1992-10-21 |
GB2259371B (en) | 1994-12-14 |
GB2259371A (en) | 1993-03-10 |
DE4230173A1 (en) | 1993-03-18 |
DE4230173C2 (en) | 1996-08-01 |
KR960008377B1 (en) | 1996-06-26 |
CA2077860C (en) | 1996-04-30 |
TW256809B (en) | 1995-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |