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US 4,284,336 AGranted
Automatic focusing camera
AssigneeWest Electric Company, Ltd.
InventorsHiroshi Iwata, Wataru Hasegawa
Life of this patent
Estimating the term…
Abstract
An automatic focusing camera wherein after the distance to object has been measured automatically by an ultrasonic or optical distance measuring means, a photographic lens is automatically shifted from the minimum focusing distance position to the infinity position and a shutter is released automatically without stopping the lens when the lens is shifted to such a position where the image of an object is in sharp focus.
Claims3
An automatic focusing camera capable of automatically measuring the distance to an object and focusing the image of said object, characterized by the provision of
- (a) a power supply control means for controlling the power supply from a power source,
- (b) a distance measuring means for measuring the distance to said object,
- (c) a lens shift means for continuously shifting a lens between the minimum focusing distance position and the infinity position,
- (d) a lens position sensing means for sensing the position of said lens, and
- (e) a shutter control means responsive to both the signals from said distance measuring means and said lens position sensing means for controlling the release of a shutter, whereby said shutter may be released while said lens is being shifted.
2 more elements
Dependencies are inferred from the claim text.