Lens barrel and imaging device

Details Lens barrel and imaging device Lens barrel and imaging device

2011-07-26

2011-07-26

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S698000

Reexamination Certificate

active

07986469

ABSTRACT:
An interchangeable lens unit comprises a second lens group unit, a focus lens unit, a fourth lens group unit, a zoom ring unit, and a focus motor. The zoom ring unit mechanically transmits operational force inputted to a zoom ring to the second lens group unit and the fourth lens group unit. The focus motor electrically drives the focus lens unit in the Z axis direction with respect to the second lens group unit. When the zoom ring is operated in a state in which no power is being supplied to the focus motor, a gap is always ensured in the Z axis direction between the focus lens unit and the second lens group unit.

REFERENCES:
patent: 6459537 (2002-10-01), Uno et al.
patent: 7574126 (2009-08-01), Honjo et al.
patent: 2006/0083505 (2006-04-01), Kashiwaba
patent: 2005-215520 (2005-08-01), None
patent: 2006-113289 (2006-04-01), None

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