Scanning optical system with irregular deflecting surface correc

Details Scanning optical system with irregular deflecting surface correc Scanning optical system with irregular deflecting surface correc

1987-01-27

1988-07-12

Corbin, John K.

350420, 350434, G02B 2610, G02B 1308, G02B 306

Patent

active

047565845

ABSTRACT:
A scanning optical system includes a light source, first and second focusing optical systems, and a light deflector. The second focusing optical system serves to focus a light beam deflected by the light deflector onto a medium to be scanned. The second focusing optical system comprises a single anamorphic lens, a single spherical lens having positive refracting power, and a single lens having a toric surface, successively arranged in order from the light deflector toward the medium.

REFERENCES:
patent: 4277128 (1981-07-01), Kawamura
patent: 4571035 (1986-02-01), Sakuma
patent: 4674825 (1987-06-01), Tateoka et al.
IBM Journal of Research and Development, vol. 21, No. 5, Sep. 1977, "Laser-Optical System of the IBM 3800 Printer", by Fleischer et al., pp. 479-483.

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