Method and apparatus for automatic image focusing

Details Method and apparatus for automatic image focusing Method and apparatus for automatic image focusing

1993-04-16

1995-08-15

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250566, G01J 120

Patent

active

054421675

ABSTRACT:
An apparatus and method is presented wherein the lens system or assembly is fixed in its location along an optical axis between an object and its image. The focusing of the object, which may vary its position along the optical axis, occurs through adjusting a detection medium or an imager to the position in image space where the image space is focused on its image plane. The invention is structured to facilitate this focusing in an automatic and very rapid manner to accommodate rapid changes in the location of the object along the optical axis.

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