Drive apparatus, lens unit, and camera

Details Drive apparatus, lens unit, and camera Drive apparatus, lens unit, and camera

2007-05-22

2007-05-22

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With support

C359S819000

Reexamination Certificate

active

11032162

ABSTRACT:
A drive apparatus improves drive efficiency while reducing device size, and a lens unit and a camera using the drive apparatus. A cam member is driven rotationally by vibration of an oscillator in the lens unit and thereby causes lenses to move forward and backward. The construction and operation of the drive apparatus supplants the need for a complicated drive mechanism using an electromagnetic motor and incumbent gears or cam rings. The simplified drive apparatus enables the device in which it is embodied to be made compact. Driving the lenses by means of a cam member minimizes energy loss due to friction, and thus sufficiently improves drive efficiency.

REFERENCES:
patent: 5675444 (1997-10-01), Ueyama et al.
patent: 6091552 (2000-07-01), Ueyama
patent: 2002/0015234 (2002-02-01), Suzuki et al.
patent: 2002/0075571 (2002-06-01), Chikami et al.
patent: 2004/0020279 (2004-02-01), Degertekin et al.
patent: 04-069070 (1992-03-01), None
patent: 07-274546 (1995-10-01), None
patent: 08-066068 (1996-03-01), None
patent: 10-161001 (1998-06-01), None

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