Variable power lens and method

Details Variable power lens and method Variable power lens and method

1988-06-20

1990-04-03

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

350607, 351 41, 351158, 351159, G02B 314, G02C 708

Patent

active

049135368

ABSTRACT:
A variable power lens includes a pair of optical membranes, each of which has a periphery and at least one of which is flexible. A frame is provided for holding the membranes with their peripheries in juxtaposition such that the surface of the membranes and their peripheries define a predetermined volume which is filled with refractive fluid. A control operatively associated with the frame selectively imposes forces on the periphery of the membranes which vary the fluid pressure in the volume. The membrane and the frame are constructed and arranged so that the surfaces of the membranes vary in a substantially spherical manner in response to changes in pressure of the fluid.

REFERENCES:
patent: 2576581 (1951-11-01), Edwards
patent: 2836101 (1958-05-01), DeSwart
patent: 3161718 (1964-12-01), DeLuca
patent: 3493290 (1970-02-01), Traub
patent: 3598479 (1971-08-01), Wright
patent: 4261655 (1981-04-01), Honigsbaum
patent: 4418990 (1983-12-01), Gerber
Raymond J. Roark and Warren C. Young, "Formulas for Stress and Strain", 5th Edition, McGraw-Hill Chapter 10, Article 10.2, pp. 324-363.

Affiliated with

Also associated with

Rating

Variable power lens and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable power lens and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable power lens and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1353841