JPS6426817A - Optical scanning device - Google Patents

Optical scanning device

Info

Publication number
JPS6426817A
JPS6426817A JP62182247A JP18224787A JPS6426817A JP S6426817 A JPS6426817 A JP S6426817A JP 62182247 A JP62182247 A JP 62182247A JP 18224787 A JP18224787 A JP 18224787A JP S6426817 A JPS6426817 A JP S6426817A
Authority
JP
Japan
Prior art keywords
reflecting mirror
deflection
distortion
varying
main scanning
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.)
Granted
Application number
JP62182247A
Other languages
Japanese (ja)
Other versions
JPH0727126B2 (en
Inventor
Yoshio Ariki
Takaki Hisada
Shunichi Taguchi
Takesuke Maruyama
Yoshifumi Honma
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62182247A priority Critical patent/JPH0727126B2/en
Publication of JPS6426817A publication Critical patent/JPS6426817A/en
Publication of JPH0727126B2 publication Critical patent/JPH0727126B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/125—Details of the optical system between the polygonal mirror and the image plane
    • G02B26/126—Details of the optical system between the polygonal mirror and the image plane including curved mirrors

Abstract

PURPOSE:To increase an angle of deflection and to reduce the overall size of a device regardless of the simple constitution of an optical system by varying the distance between the optical system and the deflecting surface of a deflecting means in the direction of the optical axis and varying the slit width of a slit according to the distance. CONSTITUTION:A light beam which is collimated by a coupling lens 2 input a converged beam close to parallel luminous flux forms its image on the reflecting surface 6a of a rotary polygon mirror 6. The light beam which is polarized by the rotary polygon mirror 6 after passing through a spherical single lens 8 is reflected by a reflecting mirror 9 in a toric shape and projected on a photosensitive drum 10. The spherical single lens 8 almost compensates field curvature and distortion in a main scanning direction (x) mainly and the reflecting mirror 9 compensate the residue. Further, surface tilt correction is made by the curvature in the subscanning direction (y) of the reflecting mirror 9. Consequently, even if the angle of deflection is increased, the field curvature and distortion are all suppressed within permissible ranges in the main scanning direction and subscanning direction.
JP62182247A 1987-07-23 1987-07-23 Optical scanning device Expired - Lifetime JPH0727126B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182247A JPH0727126B2 (en) 1987-07-23 1987-07-23 Optical scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182247A JPH0727126B2 (en) 1987-07-23 1987-07-23 Optical scanning device

Publications (2)

Publication Number Publication Date
JPS6426817A true JPS6426817A (en) 1989-01-30
JPH0727126B2 JPH0727126B2 (en) 1995-03-29

Family

ID=16114919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182247A Expired - Lifetime JPH0727126B2 (en) 1987-07-23 1987-07-23 Optical scanning device

Country Status (1)

Country Link
JP (1) JPH0727126B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014103654A1 (en) * 2012-12-27 2014-07-03 富士フイルム株式会社 Light beam scanning device and radiation image reading device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863915A (en) * 1981-10-12 1983-04-16 Fujitsu Ltd Optical scanner
JPS60186821A (en) * 1984-02-08 1985-09-24 ライノタイプ・ゲゼルシャフト・ミット・ベシュレンクタ−・ハフツング Scanner for optically flat bed
JPS61126528A (en) * 1984-11-24 1986-06-14 Minolta Camera Co Ltd Photoscanning device
JPS6265011A (en) * 1985-09-17 1987-03-24 Fuji Photo Film Co Ltd Light-beam scanning optical system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863915A (en) * 1981-10-12 1983-04-16 Fujitsu Ltd Optical scanner
JPS60186821A (en) * 1984-02-08 1985-09-24 ライノタイプ・ゲゼルシャフト・ミット・ベシュレンクタ−・ハフツング Scanner for optically flat bed
JPS61126528A (en) * 1984-11-24 1986-06-14 Minolta Camera Co Ltd Photoscanning device
JPS6265011A (en) * 1985-09-17 1987-03-24 Fuji Photo Film Co Ltd Light-beam scanning optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014103654A1 (en) * 2012-12-27 2014-07-03 富士フイルム株式会社 Light beam scanning device and radiation image reading device

Also Published As

Publication number Publication date
JPH0727126B2 (en) 1995-03-29

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