| US 7,396,167 B2 | ||
| Lens retracting structure | ||
| Gary Cho, Taichung County (Taiwan) | ||
| Assigned to Genius Electronic Optical Co., Ltd., Taichung (Taiwan) | ||
| Filed on Dec. 02, 2005, as Appl. No. 11/291,768. | ||
| Claims priority of application No. 94213650 U (TW), filed on Aug. 10, 2005. | ||
| Prior Publication US 2007/0036538 A1, Feb. 15, 2007 | ||
| Int. Cl. G03B 5/02 (2006.01); G03B 17/04 (2006.01); G02B 15/14 (2006.01); G02B 7/02 (2006.01) | ||
| U.S. Cl. 396—349 [396/80; 396/82; 396/87; 359/696; 359/704; 359/824] | 9 Claims |
| 1. A lens retracting structure comprising:
a housing having a guide member therein;
an image-forming lens set having a barrel-shaped lens body;
two longitudinal grooves disposed on opposite side of a periphery of the barrel-shaped lens body, wherein at least one of
the grooves is configured to accommodate the guide member;
the image-forming lens set is supported on said guide member inside said housing and movable along said guide member between
a first position and a second position reciprocally, said barrel-shaped lens body of said image-forming lens set is connected
to a threaded coupling member; and
a driving mechanism mounted inside said housing, said driving mechanism having a motor and a transmission device having a
shaft rotatable by the motor, said shaft having a threaded actuating portion engaged with the threaded coupling member for
driving said image-forming lens set to move along said guide member between said first position and said second position upon
rotation of said shaft driven by said motor, the thread coupling member and the lens body are in communication as a unit such
that said shaft is configured to directly drive the image-forming lens set to move toward the first position and to move toward
the second position reciprocally.
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