JPS5538529A - Light scanning device - Google Patents
Light scanning deviceInfo
- Publication number
- JPS5538529A JPS5538529A JP11134578A JP11134578A JPS5538529A JP S5538529 A JPS5538529 A JP S5538529A JP 11134578 A JP11134578 A JP 11134578A JP 11134578 A JP11134578 A JP 11134578A JP S5538529 A JPS5538529 A JP S5538529A
- Authority
- JP
- Japan
- Prior art keywords
- hologram
- point
- concave lens
- lens system
- photo
- 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 achieve the improvement in the performance of a photo polarizing system and the lower cost of the photo polarizer with sinple constitution by disposing a concave lens system between a hologram and a scanning plane.
CONSTITUTION: Light diffracted from a hologram is entered to the concave lens system L placed behind the same and is refracted there. The hologram of this time comprises disposing the one made as the spherical waves focusing at the P0 point as object light and the spherical waves emitting from the Q point as reference light on a cylindrical medium S. Such hologram is radiated by the spherical waves emitted from the Q point. The primary light diffracted at this time moves its converges spot on the circumference of a radius P0Q0 with the Q0 point on the rotating axis of the cylinder as a center. If the concave lens system L is incorporated here, the light spot having been polarized moves on an arc P'P'0. At this time, the angle of polarization is increased by the diversion action of the concave lens system. In this way, the performance of the photo polarization system may be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11134578A JPS5538529A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11134578A JPS5538529A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5538529A true JPS5538529A (en) | 1980-03-18 |
Family
ID=14558830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11134578A Pending JPS5538529A (en) | 1978-09-12 | 1978-09-12 | Light scanning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5538529A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128524A (en) * | 1983-01-13 | 1984-07-24 | Konishiroku Photo Ind Co Ltd | Exposure optical system for laser printer |
JPS62141514A (en) * | 1985-12-16 | 1987-06-25 | Fujitsu Ltd | Laser scanner |
JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
-
1978
- 1978-09-12 JP JP11134578A patent/JPS5538529A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128524A (en) * | 1983-01-13 | 1984-07-24 | Konishiroku Photo Ind Co Ltd | Exposure optical system for laser printer |
JPS62141514A (en) * | 1985-12-16 | 1987-06-25 | Fujitsu Ltd | Laser scanner |
JPH071349B2 (en) * | 1985-12-16 | 1995-01-11 | 富士通株式会社 | Laser Skiana |
JPH02181081A (en) * | 1988-12-28 | 1990-07-13 | Kyocera Corp | Single shaft eccentric screw pump |
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