Lens drive apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorKenju Yomoda
Life of this patent
Estimating the term…
Abstract
A lens drive apparatus for driving vertically and horizontally a lens component by employing magnets and coils, includes a lens component, a lens support member, a mass balancing member for balancing with respect to the lens support member, and a seesaw support member for supporting the lens support member and the mass balancing member to perform a seesaw action. The lens drive apparatus can be miniaturized and made lightweight and operates stably as a balanced lens component and serves as an efficient actuator for a focusing/tracking servo with respect to an objective lens of an optical pickup for recording and reproducing optical information.
Claims14
A lens drive apparatus for driving a lens component vertically and horizontally, said lens drive apparatus comprising:
- a housing;
- at least one magnet member for generating a magnetic flux;
- a coil member installed fixedly on said housing and for generating an electromagnetic force by interlinking with the magnetic flux of said magnet member;
- a lens support member, said lens component and one of said at least one magnet member being disposed on said lens support member;
- a mass balancing member for balancing said lens support member;
- and
- seesaw support means for coupling said lens support member and said mass balancing member to said housing, so that said lens support member and the mass balancing member can move in an opposing seesaw manner.
Dependencies are inferred from the claim text.