Lens drive unit, lens barrel, and image forming device

Details Lens drive unit, lens barrel, and image forming device Lens drive unit, lens barrel, and image forming device

2011-01-25

2011-01-25

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S817000

Reexamination Certificate

active

07876508

ABSTRACT:
A lens drive unit is configured to move a lens holding frame to a desired position by the engagement between a cam groove of a rotary cylinder and a cam follower of the lens holding frame. The lens drive unit includes a second linearly-moving guide cylinder arranged between the lens holding frame and a first linearly-moving guide cylinder. The second linearly-moving guide cylinder can be moved in the optical a direction with rotation of the rotary cylinder by the engagement of a cam follower of the second linearly-moving guide cylinder with a second cam groove of the rotary cylinder. The lens holding frame is guided in the optical axis direction by the second linearly-moving guide cylinder and moved in the optical axis direction with rotation of the rotary cylinder by the engagement of a cam follower of the lens holding frame with a first cam groove of the rotary cylinder.

REFERENCES:
patent: 6853499 (2005-02-01), Iwasaki
patent: 2008/0007847 (2008-01-01), Koyama
patent: 2009/0046156 (2009-02-01), Iwasaki
patent: 2009/0046198 (2009-02-01), Iwasaki
patent: 2009/0066829 (2009-03-01), Iwasaki
patent: 2000-147358 (2000-05-01), None
patent: 2000-147358 (2000-05-01), None
patent: 2006-039153 (2006-02-01), None
patent: 2006-039153 (2006-02-01), None

Affiliated with

Also associated with

Rating

Lens drive unit, lens barrel, and image forming device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens drive unit, lens barrel, and image forming device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens drive unit, lens barrel, and image forming device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2669599