Lens drive apparatus

Details Lens drive apparatus Lens drive apparatus

1995-05-01

1997-12-30

Ben, Loha

Optical: systems and elements

Lens

With support

359822, 359814, 369 4415, 369256, 2502015, G02B 702

Patent

active

057037302

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.

REFERENCES:
patent: 4646283 (1987-02-01), Ito et al.
patent: 4679903 (1987-07-01), Kasahara et al.
patent: 4906831 (1990-03-01), Yomoda et al.
patent: 5208703 (1993-05-01), Ikegame et al.

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