JPS5588016A - Laser recorder - Google Patents
Laser recorderInfo
- Publication number
- JPS5588016A JPS5588016A JP16266778A JP16266778A JPS5588016A JP S5588016 A JPS5588016 A JP S5588016A JP 16266778 A JP16266778 A JP 16266778A JP 16266778 A JP16266778 A JP 16266778A JP S5588016 A JPS5588016 A JP S5588016A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- lens
- polyhedral mirror
- laser
- curvature
- 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
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE:To make manufacture easy by combining cylindrical lenses and a focus compensating plate. CONSTITUTION:A first cylindrical lens 24 is disposed between a laser device 21 and a rotary polyhedral mirror 25 and a second cylinderical lens 27 and a semi-cylindrical focus compensating plate 28 are disposed between the rotary polyhedral mirror 25 and photosensitive drum 29. Then, at the time when the laser from a laser device 21 enters the photosensitive drum 29 by way of a light modulator 22, beam magnifier 23, first cylindrical lens 24, polyhedral mirror 25, ftheta lens 26 and second cylindrical lens 27, the curvature of image by the first, seond cylindrical lenses 24, 27 becomes a gentle curve as shown by the broken line 31 and is thereby corrected. Hence, the device in which the curvature of image is corrected while the easy-to- manufacture cylindrical lenses are used is obtainable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16266778A JPS5588016A (en) | 1978-12-26 | 1978-12-26 | Laser recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16266778A JPS5588016A (en) | 1978-12-26 | 1978-12-26 | Laser recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5588016A true JPS5588016A (en) | 1980-07-03 |
Family
ID=15758984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16266778A Pending JPS5588016A (en) | 1978-12-26 | 1978-12-26 | Laser recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588016A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3303934A1 (en) * | 1982-02-05 | 1983-09-01 | Ricoh Co., Ltd., Tokyo | OPTICAL SCANING SYSTEM |
US5327280A (en) * | 1989-09-14 | 1994-07-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Scanning optical system |
-
1978
- 1978-12-26 JP JP16266778A patent/JPS5588016A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3303934A1 (en) * | 1982-02-05 | 1983-09-01 | Ricoh Co., Ltd., Tokyo | OPTICAL SCANING SYSTEM |
US4643516A (en) * | 1982-02-05 | 1987-02-17 | Ricoh Company, Ltd. | Laser beam scanning apparatus |
US5327280A (en) * | 1989-09-14 | 1994-07-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Scanning optical system |
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