Laser scanning optical system

Details Laser scanning optical system Laser scanning optical system

1998-07-06

1999-08-31

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359206, 359217, G02B 2608

Patent

active

059461268

ABSTRACT:
Disclosed is a laser scanning optical system wherein light emitted from a laser source is deflected by a polygonal mirror to a scanning target surface via an imaging optical system. The laser source, the polygonal mirror, and the imaging optical system are arranged such that a stationary ghost image formed by an m-th reflection surface is formed out of the light source side end of an effective scanning range on the target surface, and a stationary ghost image formed by an (m+1)-th reflection surface is formed out of the other end of the effective scanning range.

REFERENCES:
patent: 4756584 (1988-07-01), Takanashi
patent: 4993792 (1991-02-01), Minoura

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