Automatic focus adjusting device

Details Automatic focus adjusting device Automatic focus adjusting device

1978-01-23

1980-01-15

Hix, L. T.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250204, 352140, G03B 1318

Patent

active

041836405

ABSTRACT:
A rangefinder mechanism is shown in which the scanning mirror has been replaced with a movable scanning optic. The automatic rangefinder system includes a pair of optical paths, one a reference path and the other a scanned path, which are lead to impinge upon a photosensitive surface for comparison purposes. The output of the photosensitive surface is used to adjust the main lens of the camera. The range of the movable optic is coordinated with the position of the main lens of the camera as feedback and adjustment of the rangefinder.

REFERENCES:
patent: 3958117 (1976-05-01), Stauffer

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