JPS5650469A - Picture information reader - Google Patents
Picture information readerInfo
- Publication number
- JPS5650469A JPS5650469A JP12699679A JP12699679A JPS5650469A JP S5650469 A JPS5650469 A JP S5650469A JP 12699679 A JP12699679 A JP 12699679A JP 12699679 A JP12699679 A JP 12699679A JP S5650469 A JPS5650469 A JP S5650469A
- Authority
- JP
- Japan
- Prior art keywords
- focus
- lens
- light
- photoelectric conversion
- image
- 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
Landscapes
- Facsimile Heads (AREA)
- Optical Head (AREA)
Abstract
PURPOSE: To enhance the contrast of boundaries of an image, by using the lens of chromatic aberration to focus the permeating light and the reflection light of a recording medium having metallic luster to a photoelectric conversion element.
CONSTITUTION: The light emitted from visible light source 10 is incident onto the reverse face of laser direct recording film 13 moving in the direction vertical to the paper surface to generate a negative image dependent upon the visible light. Meanwhile, the light emitted from infrared light source 14 is reflected by half- mirror 17 and illuminates the surface of LDF13. This infrared light is reflected by a metallic thin film layer to form a positive image. These both images are synthesized through projection lens 18 on the photodetection face of photoelectric conversion element 19 and are subjected to photoelectric conversion. A lens of chromatic aberration is used as this lens 18, and the focus is adjusted by the visible light. Consequently, the negative image is in focus, and the positive image is out of focus, and the contrast around dots is emphasized by synthesizing them.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12699679A JPS5650469A (en) | 1979-10-02 | 1979-10-02 | Picture information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12699679A JPS5650469A (en) | 1979-10-02 | 1979-10-02 | Picture information reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5650469A true JPS5650469A (en) | 1981-05-07 |
Family
ID=14949077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12699679A Pending JPS5650469A (en) | 1979-10-02 | 1979-10-02 | Picture information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5650469A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006083488A3 (en) * | 2005-01-31 | 2006-12-07 | Psc Scanning Inc | Extended depth of field imaging system using chromatic aberration |
US7215493B2 (en) | 2005-01-27 | 2007-05-08 | Psc Scanning, Inc. | Imaging system with a lens having increased light collection efficiency and a deblurring equalizer |
US7499090B2 (en) | 2005-01-27 | 2009-03-03 | Datalogic Scanning, Inc. | Rolling-reset imager with optical filter |
-
1979
- 1979-10-02 JP JP12699679A patent/JPS5650469A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7215493B2 (en) | 2005-01-27 | 2007-05-08 | Psc Scanning, Inc. | Imaging system with a lens having increased light collection efficiency and a deblurring equalizer |
US7499090B2 (en) | 2005-01-27 | 2009-03-03 | Datalogic Scanning, Inc. | Rolling-reset imager with optical filter |
USRE43089E1 (en) | 2005-01-27 | 2012-01-10 | Datalogic Scanning, Inc. | Imaging system with a lens having increased light collection efficiency and a deblurring equalizer |
US8134621B2 (en) | 2005-01-27 | 2012-03-13 | Datalogic ADC, Inc. | Rolling-reset imager |
WO2006083488A3 (en) * | 2005-01-31 | 2006-12-07 | Psc Scanning Inc | Extended depth of field imaging system using chromatic aberration |
US7224540B2 (en) | 2005-01-31 | 2007-05-29 | Datalogic Scanning, Inc. | Extended depth of field imaging system using chromatic aberration |
US7626769B2 (en) | 2005-01-31 | 2009-12-01 | Datalogic Scanning, Inc. | Extended depth of field imaging system using chromatic aberration |
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