Lens barrel having a multiple screw and cam action to drive plur

Details Lens barrel having a multiple screw and cam action to drive plur Lens barrel having a multiple screw and cam action to drive plur

1998-02-12

2000-11-28

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359700, 359829, G02B 1514, G02B 702

Patent

active

06154325&

ABSTRACT:
A camera lens barrel includes a multiple thread screw mechanism that rotates a drive tube. Drive tube moves along an optical axis while rotating with respect to a fixed unit. Due to an action of a first cam during the rotation of the drive tube, a cam tube moves along the optical axis with respect to the drive tube. A first lens unit is integrated with the cam tube and rotates with respect to the cam tube. During rotation of the first lens unit, a second lens unit moves along the optical axis with respect to the cam tube due to an action of a second cam. The multiple thread screw mechanism inhibits movement of the drive tube along the optical axis until the drive tube is rotated to a predetermined angle of rotation.

REFERENCES:
patent: 5699200 (1997-12-01), Uno et al.
patent: 5701206 (1997-12-01), Sasaki et al.
patent: 6011659 (2000-01-01), Onda

Affiliated with

Also associated with

Rating

Lens barrel having a multiple screw and cam action to drive plur 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 barrel having a multiple screw and cam action to drive plur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens barrel having a multiple screw and cam action to drive plur will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1731667