JPS5518669A - Optical device for imaging - Google Patents
Optical device for imagingInfo
- Publication number
- JPS5518669A JPS5518669A JP9231778A JP9231778A JPS5518669A JP S5518669 A JPS5518669 A JP S5518669A JP 9231778 A JP9231778 A JP 9231778A JP 9231778 A JP9231778 A JP 9231778A JP S5518669 A JPS5518669 A JP S5518669A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- array
- imaging
- external atmosphere
- imaging optical
- 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
Abstract
PURPOSE: To enhance the environmental stability of optical system and obtain high quality for a long period of time, by covering the end plane of imaging optical system with a specified thin film in an electrophotographic copier.
CONSTITUTION: A short focus imaging element 1 is a condenser type transparent, bar-shaped photoconductor of which refractive index continuously lowers outward in the radial direction from the center. Adjacently to this element 1 on a straight line, an imaging optical system 3 is composed having the optical axis of each element 1 arrayed in parallel. At light entrance end 3' and light exit end 3" of the array 3 are covered with thin films (measuring several to several hundred μ in thickness) 20, 21 to protect the end planes from external atmosphere. As a result, if the external atmosphere is activated chemically due to corona discharge or other effects, the corrosion of the elements constituting the array may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9231778A JPS5518669A (en) | 1978-07-28 | 1978-07-28 | Optical device for imaging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9231778A JPS5518669A (en) | 1978-07-28 | 1978-07-28 | Optical device for imaging |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5518669A true JPS5518669A (en) | 1980-02-08 |
Family
ID=14051011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9231778A Pending JPS5518669A (en) | 1978-07-28 | 1978-07-28 | Optical device for imaging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5518669A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62270178A (en) * | 1986-05-20 | 1987-11-24 | ヤマハ株式会社 | Golf ball and its production |
JPS6348501A (en) * | 1986-08-19 | 1988-03-01 | Nippon Sheet Glass Co Ltd | Flat plate microlens |
-
1978
- 1978-07-28 JP JP9231778A patent/JPS5518669A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62270178A (en) * | 1986-05-20 | 1987-11-24 | ヤマハ株式会社 | Golf ball and its production |
JPS6348501A (en) * | 1986-08-19 | 1988-03-01 | Nippon Sheet Glass Co Ltd | Flat plate microlens |
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