Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2007-04-03
2007-04-03
Dang, Hung Xuan (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S694000, C359S700000
Reexamination Certificate
active
11092697
ABSTRACT:
A zoom lens driving apparatus achieves the object of driving multiple lens groups by a single motor and low production cost. When a first lens group, which includes a first lens, moves along guide rods, a leading cam of a leading member drives a leading pin of a follower, so that the follower moves a guide pin, and moves a second lens group, which includes a second lens, along the guide rods. The relative distance between the first lens group and the second lens group is controlled by the leading cam.
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Cheng Chen-Chin
Tsao Hsiao-Yue
Dang Hung Xuan
Industrial Technology Research Institute
Martinez Joseph
Rabin & Berdo P.C.
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