Optical assembly with drive linkage for a movable lens element

Details Optical assembly with drive linkage for a movable lens element Optical assembly with drive linkage for a movable lens element

1996-10-31

1998-09-29

Epps, Georgia y.

Optical: systems and elements

Lens

With variable magnification

G02B 1514

Patent

active

058153250

ABSTRACT:
A lens assembly comprises a lens barrel assembly for supporting a lens barrel, one or more guide members for guiding the movement of the lens barrel assembly in the direction of an optical axis, a gear shaft rotatable by a primary mover, and a drive linkage for coupling the lens barrel assembly with the gear shaft. In particular, the drive linkage has a drive nut portion meshing with the gear shaft over a partial circumferential threaded section thereof and movable in the direction of the optical axis by the rotation of the gear shaft to thereby move the lens barrel assembly in the direction of the optical axis. The advantage of this design is that it allows for a compliant linkage between a lead screw motor and the lens barrel assembly, wherein the connection to the lead screw utilizes the section of the nut for thread engagement. By utilizing up to 180 degrees of thread engagement between the linkage and the lead screw, this design further allows for simplified assembly.

REFERENCES:
patent: 5029992 (1991-07-01), Richardson
patent: 5144491 (1992-09-01), Ushiro et al.
patent: 5150260 (1992-09-01), Chigira
patent: 5319498 (1994-06-01), Hara et al.
patent: 5377048 (1994-12-01), Tada et al.
patent: 5391866 (1995-02-01), Hoshio et al.
patent: 5631776 (1997-05-01), Weigand et al.
patent: 5640278 (1997-06-01), Mogamiya

Affiliated with

Also associated with

Rating

Optical assembly with drive linkage for a movable lens element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical assembly with drive linkage for a movable lens element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical assembly with drive linkage for a movable lens element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-691596