JPS5588016A - Laser recorder - Google Patents

Laser recorder

Info

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
Application number
JP16266778A
Other languages
Japanese (ja)
Inventor
Iwao Hamaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16266778A priority Critical patent/JPS5588016A/en
Publication of JPS5588016A publication Critical patent/JPS5588016A/en
Pending legal-status Critical Current

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.
JP16266778A 1978-12-26 1978-12-26 Laser recorder Pending JPS5588016A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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