JPS5677801A - Image-forming element of electrophotographic copier - Google Patents
Image-forming element of electrophotographic copierInfo
- Publication number
- JPS5677801A JPS5677801A JP15474079A JP15474079A JPS5677801A JP S5677801 A JPS5677801 A JP S5677801A JP 15474079 A JP15474079 A JP 15474079A JP 15474079 A JP15474079 A JP 15474079A JP S5677801 A JPS5677801 A JP S5677801A
- Authority
- JP
- Japan
- Prior art keywords
- image
- fresnel
- original
- forming element
- electrophotographic copier
- 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
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To manufacture a miniature, compact device, providing a normal image of nonmagnification, easily at low cost by arraying at least three arrays of platelike fresnel lenses in the direction of the optical axis while making them coincide with the optical axis.
CONSTITUTION: At least three platelike fresnel lens arrays 11, 12 and 13 in the same shape are supported by holder 17 at their outsides at prescribed intervals so that they coincide with optical axes of corresponding micro fresnel lenses 14, 15 and 16, and corresponding lenses 14, 15 and 16 are shielded from one another by shielding method 30 to form fresnel image-forming element 10. In the electrophotographic copier, this element 10 is used being arranged at the optical intermediate position between the original surface of original 19 mounted on original table 18 and the photosensitive surface of photoreceptor drum 10.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15474079A JPS5677801A (en) | 1979-11-29 | 1979-11-29 | Image-forming element of electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15474079A JPS5677801A (en) | 1979-11-29 | 1979-11-29 | Image-forming element of electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5677801A true JPS5677801A (en) | 1981-06-26 |
Family
ID=15590882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15474079A Pending JPS5677801A (en) | 1979-11-29 | 1979-11-29 | Image-forming element of electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005122041A (en) * | 2003-10-20 | 2005-05-12 | Ricoh Opt Ind Co Ltd | Light source apparatus |
-
1979
- 1979-11-29 JP JP15474079A patent/JPS5677801A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005122041A (en) * | 2003-10-20 | 2005-05-12 | Ricoh Opt Ind Co Ltd | Light source apparatus |
JP4495942B2 (en) * | 2003-10-20 | 2010-07-07 | リコー光学株式会社 | Imaging optical system, image forming apparatus, printer and image reading apparatus |
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