Multiple wavelength laser beam scanning system

Details Multiple wavelength laser beam scanning system Multiple wavelength laser beam scanning system

1992-05-29

1994-03-22

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359206, 359 18, 359216, 359496, 346108, 2505781, G02B 2608

Patent

active

052969584

ABSTRACT:
Laser beam scanning system combines multiple light beams, each of differing wavelengths, to achieve a multiple wavelength scan exposure of a medium, or to increase throughput by writing plural lines simultaneously, or to provide one or more scanning beams of selected wavelength. A polarizing beam splitting prism of the Thompson type is employed as a multiple input beam combiner. The two input laser beam components can be made selectively coincident or closely parallel to form an output beam which is then redirected in a scanning motion and focused to an exposure plane.

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