Multiple laser beam scanning optics

Details Multiple laser beam scanning optics Multiple laser beam scanning optics

1989-12-01

1990-10-16

Griffin, Donald A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

350 68, G01D 942, G02B 2717

Patent

active

049639005

ABSTRACT:
A multiple laser beam scanning optical system for correcting monochromatic and polychromatic aberrations comprising a doublet cylindrical lens for receiving the multiple beams and directing them to a rotating polygonal mirror. Scanning lens means are located to receive the beams from the mirror and direct them to the image plane. The scanning lens is comprised of at least one doublet wherein both elements have approximately the same index of refraction but different dispersion factors at a nominal wavelength

REFERENCES:
patent: 4110796, Hughton
patent: 4445126 (1984-04-01), Tsukada
patent: 4474422 (1984-10-01), Kitamura
patent: 4538895 (1985-08-01), Higgins et al.
patent: 4720632 (1988-01-01), Kaneko

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