Optical module and camera module

Details Optical module and camera module Optical module and camera module

2007-01-09

2007-01-09

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S696000, C396S075000, C396S082000, C396S529000

Reexamination Certificate

active

11186007

ABSTRACT:
An optical unit is disclosed which is capable of being easily assembled, enabling its optical element to smoothly move, and preventing friction loss from being generated around its nut member. A lens driving apparatus is provided for moving an optical element holder, which supports an optical element having an optical axis and is movable along a guide member, in an extension direction of the optical axis, using a nut integrally provided at the holder, and a lead screw threadedly coupled to the nut to rotate forward and backward by a driving unit. In the lens driving apparatus, the forward or backward rotation of the motor is transmitted to the lead screw via a reduction gear train. The lead screw is installed to be inclinedly movable with respect to the extension direction of the optical axis about threaded coupling portions of a threaded section of the lead screw and the nut.

REFERENCES:
patent: 5086312 (1992-02-01), Tanaka et al.
patent: 6714357 (2004-03-01), Yamazaki
patent: 6813441 (2004-11-01), Yamazaki
patent: 7050713 (2006-05-01), Nomura
patent: 7097367 (2006-08-01), Nomura

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