Image forming optical system using a semiconductor laser

Details Image forming optical system using a semiconductor laser Image forming optical system using a semiconductor laser

1980-03-24

1982-04-06

Corbin, John K.

350421, G02B 2717

Patent

active

043232973

ABSTRACT:
In a semiconductor laser optical system which uses a light source a semiconductor laser having different diverging points and divergence angles in orthogonal directions and in which the light beam from the light source is imaged on a scanned surface, only a spherical surface optical system is provided between the semiconductor laser and the scanned surface. The spherical surface optical system includes two partial optical systems, i.e. a first image forming optical system and a second image forming optical system as viewed from the light source side. By selecting the optical constant of one of the two image forming optical systems to a predetermined value, the peak power of the image forming spot on the scanned surface is maximized.

REFERENCES:
patent: 3549800 (1970-12-01), Baker
patent: 4176325 (1979-11-01), Kajimura et al.
patent: 4188113 (1980-02-01), Hiraga
patent: 4203652 (1980-05-01), Hanada

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