Optical scanner for maintaining focus over a flat image plane

Details Optical scanner for maintaining focus over a flat image plane Optical scanner for maintaining focus over a flat image plane

1990-08-13

1991-10-22

Arnold, Bruce Y.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

G02B 2608

Patent

active

050589687

ABSTRACT:
An optical scanning system of the type in which an oscillating mirror located between the focusing lens and the image plane is provided to scan the reflected optical axis of a focusing lens across a flat field, wherein the pivot axis of the mirror is translated during oscillation of the mirror. The pivot axis of the mirror is translated at an angle of 45.degree. with respect to the optical axis of the focusing lens thereby enabling the mirror to be translated at a uniform velocity during scanning to provide a uniform velocity scan.

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patent: 4919499 (1990-04-01), Aiba

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