Lens apparatus

Details Lens apparatus Lens apparatus

2009-03-09

2010-10-12

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S696000

Reexamination Certificate

active

07813053

ABSTRACT:
A lens apparatus including an optical element includes a motor configured to drive the optical element; a position detector configured to detect a relative position of the optical element; and a controller configured to detect an origin of the optical element by returning the optical element to the origin by controlling the motor. The controller controls the motor so that a speed of the optical element moving to the origin is higher than a speed of the optical element moved by an operation of an operator.

REFERENCES:
patent: 5930054 (1999-07-01), Kasuya
patent: 7218849 (2007-05-01), Hirai
patent: 7265914 (2007-09-01), Hirai
patent: 2002/0001138 (2002-01-01), Fukita et al.
patent: 2005/0219710 (2005-10-01), Hirai

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