Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Intraocular lens
Patent
1987-07-28
1989-05-09
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Intraocular lens
351166, 351171, 351172, A61F 216
Patent
active
048285587
ABSTRACT:
Composite lens, especially an intraocular lens for insertion through an incision into an eye and desirably containing haptics, comprising a flat, partially hollow laminate optic, formed by a pair of relatively thin, sheet-like elements having opposed interior surfaces, at least one such element constituting a protected Fresnel lens defining the interior surface of the element as a discontinuous surface formation of a concentric series of annular prisms, the interior surfaces being peripherally sealed together to define therebetween a counterpart series of permanent captive gas enclosing, liquid free, spaces of different index of refraction from that of the elements, preferably with the elements being formed of flexible, temporarily deformable material and together sized to provide the optic with a comparatively thin thickness in relation to its diameter, permitting its deformation into a reduced girth cylindrical shape for eye insertion through a minimum size corneal incision, after which the lens will return to its original state for seating in place in the eye.
REFERENCES:
patent: 4074368 (1978-02-01), Levy, Jr. et al.
patent: 4534069 (1985-08-01), Kelman
patent: 4673406 (1987-06-01), Schlegel
Frinks Ronald L.
Lewen Bert J.
Sternberg Henry
LandOfFree
Laminate optic with interior Fresnel 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 Laminate optic with interior Fresnel lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminate optic with interior Fresnel lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-87017