JPS5636622A - Scanning optical system having inclination correcting function - Google Patents
Scanning optical system having inclination correcting functionInfo
- Publication number
- JPS5636622A JPS5636622A JP11309479A JP11309479A JPS5636622A JP S5636622 A JPS5636622 A JP S5636622A JP 11309479 A JP11309479 A JP 11309479A JP 11309479 A JP11309479 A JP 11309479A JP S5636622 A JPS5636622 A JP S5636622A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- polarizer
- scanned
- medium
- optical system
- 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
Links
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Lenses (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE:To obtain a scanning optical system by which beam scanning speed is made constant on the surface to be scanned by removing the pitch unevenness of scanning lines by the use of a toric lens. CONSTITUTION:A cylindrical lens 2 imaging the luminous flux emitting from a light source device 1 into a linear shape and a polarizer 3 having a polarization counter face 3a near the position where rays are converged into a linear shape by this lens are provided. A spherical single lens 4 and a toric single lens of refractive power differing in two orthogonal directions are disposed between this polarizer 3 and the medium 6 to be scanned. An imaging spot is formed on the medium 6 to be scanned by the composite system of these lenses and the spot scans on the medium 6 along with turning of the polarizer 3.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11309479A JPS5636622A (en) | 1979-09-04 | 1979-09-04 | Scanning optical system having inclination correcting function |
US06/182,088 US4379612A (en) | 1979-09-04 | 1980-08-28 | Scanning optical system having a fall-down correcting function |
DE19803033207 DE3033207A1 (en) | 1979-09-04 | 1980-09-03 | OPTICAL SCAN SYSTEM WITH A WASTE CORRECTION FUNCTION |
GB8028379A GB2062277B (en) | 1979-09-04 | 1980-09-03 | Scanning optical system having a falldown correcting function |
FR8019106A FR2464494A1 (en) | 1979-09-04 | 1980-09-04 | OPTICAL SCANNING SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11309479A JPS5636622A (en) | 1979-09-04 | 1979-09-04 | Scanning optical system having inclination correcting function |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5636622A true JPS5636622A (en) | 1981-04-09 |
JPS6236210B2 JPS6236210B2 (en) | 1987-08-06 |
Family
ID=14603323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11309479A Granted JPS5636622A (en) | 1979-09-04 | 1979-09-04 | Scanning optical system having inclination correcting function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5636622A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5893021A (en) * | 1981-11-28 | 1983-06-02 | Ricoh Co Ltd | 2-group ftheta lens having fall compensating effect of deflected surface |
JPS58132719A (en) * | 1982-02-02 | 1983-08-08 | Ricoh Co Ltd | Optical scanning system having inclination correcting function using semicondutor laser |
JPS59147316A (en) * | 1983-02-10 | 1984-08-23 | Canon Inc | Photoscanner |
JPS59193414A (en) * | 1983-03-07 | 1984-11-02 | インタ−ナシヨナル・ビジネス・マシ−ンズ・コ−ポレ−シヨン | Optical system |
JPS60100118A (en) * | 1983-11-05 | 1985-06-04 | Canon Inc | Scanning optical system having inclination correcting function |
JPS61175607A (en) * | 1985-01-31 | 1986-08-07 | Konishiroku Photo Ind Co Ltd | Scanning optical system |
JPS62240921A (en) * | 1986-04-11 | 1987-10-21 | Matsushita Electric Ind Co Ltd | Light beam scanner |
JPS636515A (en) * | 1986-06-27 | 1988-01-12 | Hitachi Ltd | Scanning optical system |
JPS6366531A (en) * | 1986-09-09 | 1988-03-25 | Canon Inc | Laser beam scanning optical system |
JPS6378122A (en) * | 1986-09-22 | 1988-04-08 | Matsushita Electric Ind Co Ltd | Light beam scanning device |
JPS63189822A (en) * | 1987-02-02 | 1988-08-05 | Seiko Epson Corp | Optical scanning device |
JPS63204225A (en) * | 1987-02-20 | 1988-08-23 | Fuji Xerox Co Ltd | Optical mechanism for light beam scanner |
EP0286368A2 (en) * | 1987-04-06 | 1988-10-12 | Matsushita Electric Industrial Co., Ltd. | Anamorphic single lens |
JPH03231218A (en) * | 1990-02-07 | 1991-10-15 | Canon Inc | Optical system for optical beam scanning |
JPH05127119A (en) * | 1992-03-16 | 1993-05-25 | Canon Inc | Scanning optical system removing ghost image |
US5343325A (en) * | 1992-02-05 | 1994-08-30 | Fuji Photo Optical Co., Ltd. | Optical scanning system with tilt correction function |
US5745277A (en) * | 1994-05-23 | 1998-04-28 | Matsushita Electric Industrial Co., Ltd. | Scanner optics and image formation apparatus using the same |
US5995131A (en) * | 1996-12-19 | 1999-11-30 | Canon Kabushiki Kaisha | Imaging lens system of scanning optical apparatus |
US6133935A (en) * | 1996-12-19 | 2000-10-17 | Canon Kabushiki Kaisha | Optical scanning apparatus |
-
1979
- 1979-09-04 JP JP11309479A patent/JPS5636622A/en active Granted
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0338572B2 (en) * | 1981-11-28 | 1991-06-11 | Ricoh Kk | |
JPS5893021A (en) * | 1981-11-28 | 1983-06-02 | Ricoh Co Ltd | 2-group ftheta lens having fall compensating effect of deflected surface |
JPS58132719A (en) * | 1982-02-02 | 1983-08-08 | Ricoh Co Ltd | Optical scanning system having inclination correcting function using semicondutor laser |
JPS59147316A (en) * | 1983-02-10 | 1984-08-23 | Canon Inc | Photoscanner |
JPH0563777B2 (en) * | 1983-02-10 | 1993-09-13 | Canon Kk | |
JPS59193414A (en) * | 1983-03-07 | 1984-11-02 | インタ−ナシヨナル・ビジネス・マシ−ンズ・コ−ポレ−シヨン | Optical system |
JPH0443248B2 (en) * | 1983-03-07 | 1992-07-16 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPS60100118A (en) * | 1983-11-05 | 1985-06-04 | Canon Inc | Scanning optical system having inclination correcting function |
JPS61175607A (en) * | 1985-01-31 | 1986-08-07 | Konishiroku Photo Ind Co Ltd | Scanning optical system |
JPS62240921A (en) * | 1986-04-11 | 1987-10-21 | Matsushita Electric Ind Co Ltd | Light beam scanner |
JPH0695176B2 (en) * | 1986-06-27 | 1994-11-24 | 株式会社日立製作所 | Scanning optics |
JPS636515A (en) * | 1986-06-27 | 1988-01-12 | Hitachi Ltd | Scanning optical system |
JPS6366531A (en) * | 1986-09-09 | 1988-03-25 | Canon Inc | Laser beam scanning optical system |
JPS6378122A (en) * | 1986-09-22 | 1988-04-08 | Matsushita Electric Ind Co Ltd | Light beam scanning device |
JPS63189822A (en) * | 1987-02-02 | 1988-08-05 | Seiko Epson Corp | Optical scanning device |
JPS63204225A (en) * | 1987-02-20 | 1988-08-23 | Fuji Xerox Co Ltd | Optical mechanism for light beam scanner |
US4915484A (en) * | 1987-04-06 | 1990-04-10 | Matsushita Electric Industrial Co., Ltd. | Anamorphic single lens |
EP0286368A2 (en) * | 1987-04-06 | 1988-10-12 | Matsushita Electric Industrial Co., Ltd. | Anamorphic single lens |
EP0286368B1 (en) * | 1987-04-06 | 1994-12-14 | Matsushita Electric Industrial Co., Ltd. | Anamorphic single lens |
JPH03231218A (en) * | 1990-02-07 | 1991-10-15 | Canon Inc | Optical system for optical beam scanning |
US5343325A (en) * | 1992-02-05 | 1994-08-30 | Fuji Photo Optical Co., Ltd. | Optical scanning system with tilt correction function |
JPH05127119A (en) * | 1992-03-16 | 1993-05-25 | Canon Inc | Scanning optical system removing ghost image |
JPH0652339B2 (en) * | 1992-03-16 | 1994-07-06 | キヤノン株式会社 | Scanning optical system for removing ghost images |
US5745277A (en) * | 1994-05-23 | 1998-04-28 | Matsushita Electric Industrial Co., Ltd. | Scanner optics and image formation apparatus using the same |
US5995131A (en) * | 1996-12-19 | 1999-11-30 | Canon Kabushiki Kaisha | Imaging lens system of scanning optical apparatus |
US6133935A (en) * | 1996-12-19 | 2000-10-17 | Canon Kabushiki Kaisha | Optical scanning apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6236210B2 (en) | 1987-08-06 |
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