G - Physics – 02 – B
Patent
G - Physics
02
B
88/100
G02B 15/00 (2006.01) G02B 7/10 (2006.01) G02B 15/14 (2006.01)
Patent
CA 1207570
ABSTRACT OF THE DISCLOSURE A zoom lens operating mechanism comprises a stationary cylinder, an operating ring rotatably mounted on the stationary cylinder, a cam cylinder rotatably mounted within the stationary cylinder and coupled to the operating ring for rotation therewith, at least one lens group coupled to the cam cylinder to as to be movable within a zoom range as the operating ring is rotated within a first angular range and within a close-up range as the operating ring is rotated within a second angular range, a guide arrangement formed in the stationary cylinder, and an operating member mounted on the operating ring and cooperating with the guide arrangement to define the first and second angular ranges. The guide arrangement comprises contiguous first and second guide grooves with a stop at the function therebetween, and the operating member is rotatable relative to the operating ring and includes a locking device extendable into the first and second guide grooves such that upon rotation of the operating ring by the operating member through the first range, the locking device moves along the first guide groove and is locked at the stop, end upon rotation of the operating member the locking device is released from the stop end the locking device can then move along the second guide groove so that the operating ring is rotatable within the second range.
433205
Nakazato Kunio
Ozawa Kazuya
Gowling Lafleur Henderson Llp
Sony Corporation
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