Optical scanner

Details Optical scanner Optical scanner

1995-07-24

1997-08-12

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359205, 359207, 347258, G02B 2608

Patent

active

056571470

ABSTRACT:
The optical scanner of this invention includes a light source, an optical deflector for scanning a light flux from the light source, a first image formation optical system disposed between the light source and the optical deflector, and a second image formation optical system disposed between the optical deflector and a surface to be scanned. The second image formation optical system includes a curved mirror for reflecting a light flux from the optical deflector and a correction lens for converging the light flux from the curved mirror on the surface to be scanned. A refractive power in the sub-scanning direction at the center of the correction lens in the scanning direction is different from that at the periphery thereof.

REFERENCES:
patent: 5408095 (1995-04-01), Atsuumi et al.
patent: 5426298 (1995-06-01), Sakoma et al.
patent: 5543955 (1996-08-01), Yamazaki et al.

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