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US 5,980,040 AGranted
Pinhole lens and contact lens
AssigneeWesley-Jessen Corporation
InventorsDavid H. Xu, David Miller, Leroy Meshel
Life of this patent
Estimating the term…
Abstract
A contact lens comprising an optically transparent lens body having a concave surface adapted to the patient's eye curvature and a convex surface. The lens has three regions: (1) an annular region of a first optical power; (2) at the center of said annular region, which is also at the optical center of said lens, a substantially pinhole-like aperture; and (3) a second larger annular region exterior to the first annular region.
Claims20
A contact lens comprising
- an optically transparent lens body having a concave surface adapted to the patient's eye curvature and a convex surface, said convex surface having a first optical power to correct vision;
- said lens having three regions:
- (1) a first annular region of a second optical power said first annular region having a center;
- (2) at the center of said first annular region a substantially pinhole-lens aperture;
- and
- (3) a second annular region exterior to said first annular region;
- wherein during bright lighting conditions when the wearer's pupil constricts, vision is generally restricted to said pinhole lens aperture and during low light conditions when the wearer's pupil dilates, vision is allowed beyond said pinhole-lens aperture, permitting additional light to pass through said second annular region, and wherein said second optical power serves to deflect light passing through said first annular region from a focal point of said pinhole lens aperture.
4 more elements
A contact lens comprising:
- a lens body having a first surface substantially configured to conform to the eye curvature of the wearer, and a second surface optically configured in conjunction with said first surface to correct the vision of the wearer selectively at a focus between and including far and near objects;
- a pinhole optical aperture formed in said lens body which has a light focus;
- said lens body further having a first region surrounding said pinhole aperture which passes light therethrough but diverts said light passing therethrough from said pinhole light focus.
A lens comprising:
- a lens body;
- a pinhole optical aperture formed in said lens body which has a light focus;
- said lens body further having a region surrounding said pinhole aperture, said region passing light therethrough but diverting said light passing therethrough from said pinhole light focus.
A non-surgical-method for treating visual aberrations, comprising the steps of:
- fitting at least one eye of a wearer with a first contact lens configured to correct the vision of the wearer at a focus between and including near and far objects;
- providing on said contact lens a pinhole aperture which serves to bring light to a focus and an annular non-corrective segment of selected optical transmissivity surrounding said pinhole aperture, said annular segment functioning to direct light passing therethrough from said focus.
A contact lens comprising
- an optically transparent lens body having a concave surface adapted to the patient's eye curvature and a convex surface, at least one of said surfaces having a first optical power to correct vision;
- said lens having:
- (1) a first region of a light transmissive and light directing optical characteristic;
- (2) at about the center of said first region a substantially pinhole-lens aperture;
- wherein during bright lighting conditions when the wearer's pupil constricts, vision is generally restricted to said pinhole lens aperture, and during low light conditions when the patient's pupil dilates, vision is allowed beyond said first region, permitting additional light to pass through said lens, and wherein said first region serves to direct light passing therethrough from a focal point of said pinhole lens aperture.
2 more elements
A contact lens comprising
- an optically transparent lens body having a concave surface adapted to the patient's eye curvature and a convex surface, at least one of said surfaces having a first optical power to correct vision;
- said lens having:
- (1) a first generally annular region of a light transmissive and light directing optical characteristic;
- (2) at about the center of said first region a substantially pinhole-lens aperture;
- (3) a second generally annular region having light transmissive characteristic radially outward from said first region;
- wherein during bright lighting conditions when the wearer's pupil constricts, vision is generally restricted to said pinhole lens aperture, and during low light conditions when the patient's pupil dilates, vision is allowed beyond said first region into said second region, permitting additional light to pass through said lens, and wherein said first region serves to direct light passing therethrough from a focal point of said pinhole lens aperture.
3 more elements
A lens comprising:
- an optically transparent lens body;
- said lens body having:
- (1) a first region of a light transmissive and light directing optical characteristic;
- (2) at about the center of said first region a substantially pinhole-lens aperture;
- said first region serving to direct light passing therethrough from a focal point of said pinhole lens aperture.
2 more elements
A method for modifying vision comprising the steps of:
- providing an optically transparent lens body, said body having:
- (1) a first region of a light transmissive and light directing optical characteristic;
- (2) at about the center of said first region a substantially pinhole-lens aperture;
- and
- fitting said lens body to a patient in a manner wherein during bright lighting conditions when the wearer's pupil constricts, vision is generally restricted to said pinhole lens aperture, and during low light conditions when the patient's pupil dilates, vision is allowed beyond said first region, permitting additional light to pass through said lens, and wherein said first region serves to direct light passing therethrough from a focal point of said pinhole lens aperture.
2 more elements
Dependencies are inferred from the claim text.