Automatic focusing method and camera provided with automatic foc

Details Automatic focusing method and camera provided with automatic foc Automatic focusing method and camera provided with automatic foc

1988-03-09

1989-06-20

Adams, Russell E.

3541951, G03B 300

Patent

active

048413232

ABSTRACT:
A camera provided with an automatic focusing apparatus having a lens-driving device (40) to move a photographing lens (50) in the direction of an optical axis to a focal position on the basis of a distance information from a distance-measuring device, a lens-positioning device (30) to determine a position of stoppage of the photographing lens (50) moved in the direction of the optical axis, and one motor (60) driving the two devices (40) and (30).
An automatic focusing method of detecting a distance to an object by a distance-measuring device, moving the photographing lens (50) in the direction of an optical axis on the basis of the information on the distance, determining a position of stoppage of the photographing lens (50) at the same time substantially, and stopping the photographing lens (50) at this position.

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