Lens barrel and imaging apparatus

Details Lens barrel and imaging apparatus Lens barrel and imaging apparatus

2008-05-13

2008-12-16

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Lens

With support

C359S822000, C359S823000

Reexamination Certificate

active

07466504

ABSTRACT:
A lens barrel in which a plurality of movable units, each including a group of lenses, are moved in the optical axis direction when a cam ring is rotated relative to a stationary ring around the optical axis, is disclosed. The lens barrel includes a first movable unit including a first group of lenses and a first moving frame having a roller support hole formed therein; a second movable unit including a second group of lenses and a second moving frame disposed inside the first moving frame; a pressing roller supported in the roller support hole in the first moving frame; a biasing spring attached to the outer surface of the first moving frame; and a receive roller supported by the first or second moving frame.

REFERENCES:
patent: 6195211 (2001-02-01), Iwasaki
patent: 2000-266981 (2000-09-01), None

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