Apparatus for optical scanning

Details Apparatus for optical scanning Apparatus for optical scanning

1979-10-30

1981-06-09

Henry, Jon W.

Recorders

Record receiver deforming

350 68, 346108, G02B 2717

Patent

active

042721512

ABSTRACT:
An apparatus is described which provides optical scanning with both high resolution and high speed. A low resolution acousto-optic deflector is scan-center coupled with a rotating scanner to allow high scanning speed without degrading the resolution characteristics associated with a rotating scanner. A mirror having a parabolic reflective surface exhibiting spherical aberration cooperates with a rotating multi-faceted cylindrical mirror to maintain the imaging focal point of the beam provided by the apparatus in a flat image field as the beam is caused to scan the field.

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