Eyeglasses for those who can see and read things clearly only at

Details Eyeglasses for those who can see and read things clearly only at Eyeglasses for those who can see and read things clearly only at

1997-12-12

1999-06-22

Dang, Hung Xuan

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

351 41, G02C 712

Patent

active

059147652

ABSTRACT:
A pair of eyeglasses includes a focus adjusting device including an auxiliary frame formed with two lens frames, two annular ring-like wheels rotatably fitted within the two lens frames, a flexible loop member connecting the two annular ring-like wheels, two lenses fitted in the two annular ring-like wheels, an engaging plate fixedly mounted on an intermediate portion of an inner side of the auxiliary frame and provided with a hook, and a main frame provided with a pair of temples for fitting over ears of a user and having two lens frames in which are fitted two lenses, the main frame having an inner side being provided with a recess dimensioned to receive the hook of the engaging plate, whereby the eyeglasses can be adjusted to change the focus as desired.

REFERENCES:
patent: 5663779 (1997-09-01), Karasawa

Affiliated with

Also associated with

Rating

Eyeglasses for those who can see and read things clearly only at does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Eyeglasses for those who can see and read things clearly only at, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eyeglasses for those who can see and read things clearly only at will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1711391