Variable focus lens by small changes of the equatorial lens diam

Details Variable focus lens by small changes of the equatorial lens diam Variable focus lens by small changes of the equatorial lens diam

1998-03-23

2000-03-14

Sugarman, Scott J.

Optical: systems and elements

Lens

Fluid

359676, G02B 106, G02B 314

Patent

active

060380802

ABSTRACT:
A variable focus lens is constructed by making small changes in the equatorial diameter of an elastically deformable lens. The lens may be deformed by radial tension exerted in a plane generally perpendicular to the optical axis. The radial tension may be exerted by radially acting mechanical apparatus or by means of rings embedded or attached at the equator of the lens, whose diameter can be altered by heating, or by imposition of electrical or magnetic fields.

REFERENCES:
patent: 1269422 (1918-06-01), Gordon
patent: 3598479 (1971-08-01), Wright
patent: 4444471 (1984-04-01), Ford, Jr. et al.
patent: 4514048 (1985-04-01), Rogers
patent: 4712882 (1987-12-01), Baba et al.
patent: 4783155 (1988-11-01), Imataki et al.
patent: 4784479 (1988-11-01), Ikemori
patent: 4802746 (1989-02-01), Baba et al.
patent: 4859041 (1989-08-01), Suda
patent: 4913536 (1990-04-01), Barnea
Schachar, R.A., "Is Helmholtz' Theory of Accommondation Correct", Ann. Ophthalmol. 1999:31(1):10-17.
Schachar, R.A., "Paradoxical Optical Power Increase of a Deformable Lens by Equatorial Stretching", Ann. Ophthalmol. 1998:30(1):10-18.
Schachar, R.A., et al., "A Revolutionary Variable Focus Lens", Ann. Ophthalmol. 1996:28(1):11-18.
Patent Abstracts of Japan, vol. 009, No. 186 (P-377), Aug. 2, 1985 & JP 60 057309 A (Murata Seisakusho:KK), Apr. 3, 1985.
Patent Abstracts of Japan, vol. 010, No. 195 (P-475), Jul. 9, 1986 & JP 61 038903 A (Canon Inc.), Feb. 25, 1986.
Patent Abstracts of Japan, vol. 007, No. 054 (P-180), Mar. 4, 1983 & JP 57 201207 A (Fuji Xerox KK) Dec. 9, 1982.
Schachar, R.A., et al., "A Physical Model Demonstrating Schacher's Hypothesis of Accommondation", Ann. Ophthalmol. 1994:26:4-9.
Schachar, R.A., et al., "Experimental Support for Schachar's Hypothesis of Accommodation", Ann. Ophthalmol. 1993:25:404-409.
Schachar, R.A., et al., "Mathematical Proof of Schachar's Hypothesis of Accommodation", Ann. Ophthalmol. 1993:25:5-9.
Schachar, R.A., et al., "Pathophysiology of Accommodation and Presbyopia. Understanding the Clinical Implications", J. Florida Med. Assoc. 81, 268-271 (Apr. 1994).

Affiliated with

Also associated with

Rating

Variable focus lens by small changes of the equatorial lens diam 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 focus lens by small changes of the equatorial lens diam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable focus lens by small changes of the equatorial lens diam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-175249