JPS6442625A - Scanning and imaging optical system - Google Patents

Scanning and imaging optical system

Info

Publication number
JPS6442625A
JPS6442625A JP19854387A JP19854387A JPS6442625A JP S6442625 A JPS6442625 A JP S6442625A JP 19854387 A JP19854387 A JP 19854387A JP 19854387 A JP19854387 A JP 19854387A JP S6442625 A JPS6442625 A JP S6442625A
Authority
JP
Japan
Prior art keywords
main scanning
lens group
section perpendicular
optical axis
optical
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
JP19854387A
Other languages
Japanese (ja)
Other versions
JP2553882B2 (en
Inventor
Hiromitsu Yamakawa
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP19854387A priority Critical patent/JP2553882B2/en
Publication of JPS6442625A publication Critical patent/JPS6442625A/en
Application granted granted Critical
Publication of JP2553882B2 publication Critical patent/JP2553882B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To obtain good imaging performance by providing an optically conjugate relation between the deflective reflecting surface of a deflector and imaging plane in the section perpendicular to the main scanning and satisfying the specific conditions. CONSTITUTION:This optical system is constituted of a 1st lens group having a negative refractive index as a whole, the 2nd lens group having a positive refractive index as a whole and a concave cylindrical mirror having a generator in the direction parallel with the main scanning direction. The optically conjugate relation is provided between the deflective reflecting surface of the deflector and the imaging plane in the section perpendicular to the main scanning and equations I-VI are satisfied. In equations I-VI, (f) is the focal length in the section perpendicular to the main scanning of the entire system; f1, f2 are the focal lengths of the 1st and 2nd lens groups; (d) is the length on the optical axis from the 1st face of the 1st lens group to the final face of the 2nd lens group; gamma is the radius of curvature of the final face of the 2nd lens group; R is the radius of curvature in the section perpendicular to the main scanning of a concave optical reflecting element; psi is the angle between the optical axis of the 1st and 2nd lens groups and the normal on the intersected point of the optical axis and the concave optical reflecting element. Good imaging performance is thereby obtd.
JP19854387A 1987-08-08 1987-08-08 Scanning optical system Expired - Lifetime JP2553882B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19854387A JP2553882B2 (en) 1987-08-08 1987-08-08 Scanning optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19854387A JP2553882B2 (en) 1987-08-08 1987-08-08 Scanning optical system

Publications (2)

Publication Number Publication Date
JPS6442625A true JPS6442625A (en) 1989-02-14
JP2553882B2 JP2553882B2 (en) 1996-11-13

Family

ID=16392910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19854387A Expired - Lifetime JP2553882B2 (en) 1987-08-08 1987-08-08 Scanning optical system

Country Status (1)

Country Link
JP (1) JP2553882B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02271314A (en) * 1989-04-12 1990-11-06 Canon Inc Optical scanner
BG65324B1 (en) * 1999-02-19 2008-02-29 Lek, Tovarna Pharmacevtskih In Kemicnih Izdelkov,D.D. Pharmaceutical form for a single daily peroral dose of clarithromycin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02271314A (en) * 1989-04-12 1990-11-06 Canon Inc Optical scanner
BG65324B1 (en) * 1999-02-19 2008-02-29 Lek, Tovarna Pharmacevtskih In Kemicnih Izdelkov,D.D. Pharmaceutical form for a single daily peroral dose of clarithromycin

Also Published As

Publication number Publication date
JP2553882B2 (en) 1996-11-13

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