Actuation mechanism for variable focus spectacles

Details Actuation mechanism for variable focus spectacles Actuation mechanism for variable focus spectacles

2006-03-07

2006-03-07

Mai, Huy (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

C351S158000, C359S666000, C359S832000

Reexamination Certificate

active

07008054

ABSTRACT:
An actuating mechanism for spectacles which include two variable focus lens units. The mechanism mounts on the spectacle bridge; and includes two elongated drive levers mounted near opposite ends of the bridge, each extending toward the other end of the bridge. The free end of each driving lever is connected to its corresponding lens unit through a linkage. The driving levers are caused to rotate simultaneously, but in opposite directions, by a cam that is driven by a sliding member that slides along the bridge. By positioning the sliding member as desired, the spectacles wearer causes the cam to rotate, thereby causing the driving levers to rotate, and both lens units to change focal length.

REFERENCES:
patent: 5138494 (1992-08-01), Kurtin
patent: 5229885 (1993-07-01), Quaglia
patent: 5371629 (1994-12-01), Kurtin
patent: 5668620 (1997-09-01), Kurtin et al.
patent: 6053610 (2000-04-01), Kurtin et al.

Affiliated with

Also associated with

Rating

Actuation mechanism for variable focus spectacles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Actuation mechanism for variable focus spectacles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Actuation mechanism for variable focus spectacles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3556828