Sonor controlled two focal position lens system

Details Sonor controlled two focal position lens system Sonor controlled two focal position lens system

G - Physics

03

B

95/62

G03B 13/00 (2006.01) G02B 7/40 (2006.01)

Patent

CA 1112497

ABSTRACT OF THE DISCLOSURE A photographic camera in which a two-position lens is focused automatically on subjects located within "near" and "far" distance ranges from the camera. The lens is normally positioned in one of the two positions and movable to the other of the two positions in response to a signal generated by an electronic ranging circuit upon the detection of subject location in the focus range to which the other position corresponds.

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