Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1982-09-30
1984-08-21
Corbin, John K.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
3 13, 351160H, 604893, 604895, A61F 116, G02B 106, G02B 312, G02C 704
Patent
active
044667051
ABSTRACT:
A lens having a semipermeable transparent sheath with opposite anterior and posterior portions joined at their edges and forming a closed interior space between themselves. A body of liquid is provided within the sheath and fills the interior space and constitutes an optical lens whose anterior and posterior surfaces are bounded by the anterior and posterior portions of the sheath, respectively, thus defining the anterior and posterior surfaces of the lens. A substance is provided in the body of liquid for producing within the interior space a concentration which is greater than the concentration of a liquid medium in association with which the lens is to be used, in consequence of which when the lens is in contact with such medium, the interior space will be kept filled with liquid under the influence of osmosis which causes the flow of liquid from the exterior of the sheath to the interior thereof whenever the interior space is less than full thereby maintaining the shape of the lens.
REFERENCES:
patent: 2241415 (1941-05-01), Moulton
patent: 3416160 (1965-08-01), Arion
patent: 3710796 (1973-01-01), Neefe
patent: 3832458 (1974-08-01), Merrill
patent: 4057619 (1977-11-01), Higuchi et al.
patent: 4123408 (1978-10-01), Gordon
patent: 4153349 (1979-05-01), Wichterle
patent: 4174156 (1979-11-01), Glorieux
patent: 4253199 (1981-03-01), Banko
patent: 4327725 (1982-05-01), Cortese et al.
Remington's Pharmaceutical Sciences, 16th Edition, Arthur Osol, Editor, Mack Publishing Co. 1980, pp. 182-193, "Complexation" Chapter 14 by Gennaro.
Physical Pharmacy, 2nd Edition, Martin et al., Lea & Febiger, 1969, pp. 325-352, "Complexation" Chapter 13.
Corbin John K.
Sugarman Scott J.
LandOfFree
Fluid lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1936672