Scanning optical system

Details Scanning optical system Scanning optical system

1993-10-26

1995-09-19

Shafer, Ricky D.

Optical: systems and elements

Deflection using a moving element

359212, 359831, 359837, G02B 2608

Patent

active

054521190

ABSTRACT:
The laser beam emitted by a laser light source is first brought to an image in an auxiliary scanning plane, and reflected by a slit mirror provided in a prism block. The arrangement is such that this laser light is incident on the scanning deflector along the optic axis of the scanning lens, and a screen is provided for obstructing ghosting in the vicinity of the scanning surface. Further, either the side of the prism block on which the light is incident or the side from which it emerges is curved, or both are curved, or one side of the prism block is treated to prevent reflection. Further, a screen is provided between the laser light source and the slit mirror so as to obstruct that part of the light incident on the mirror which is reflected by the mirror after being reflected by the scanning deflector.

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