Movable lens control device

Details Movable lens control device Movable lens control device

2007-07-19

2009-02-17

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S694000, C359S702000

Reexamination Certificate

active

07492536

ABSTRACT:
A lens system having at least one front movable lens group and a rear movable lens group which are movable in an optical axis direction. The lens system includes a position detector for determining whether the rear movable lens group is positioned in a predetermined normal moving range thereof; and a lens control device which stops the front movable lens group and moves the rear movable lens group rearward into the predetermined normal moving range if the rear movable lens group is in an abnormal moving range thereof in front of the normal moving range during a forward movement of the front movable lens group from a predetermined initial position thereof.

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U.S. Appl. No. 11/202,087 to Nomura, filed Aug. 12, 2005.
English language Abstract of JP 2002-286999.

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