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US 7,244,026 B1Granted
Sterilizable ophthalmoscopy lens system
AssigneeVolk Optical, Inc.
InventorsDenwood F. Ross, III, Tim D. Edwards, C. Thomas Marek
Life of this patent
Estimating the term…
Abstract
An autoclavable and sterilent-resistant ophthalmoscopy lens system having a plastic contact lens, and at least one image forming lens element. An ophthalmoscopy lens system having a contact lens element, an image forming lens and a retaining ring is also provided.
Claims5
An ophthalmoscopy lens system, comprising:
- a contact lens element having a posterior lens surface with a concave shape substantially corresponding to the shape of an average cornea, and an anterior surface;
- an image forming lens element having anterior and posterior surfaces, wherein said posterior surface of said image forming lens element has a shape corresponding to the shape of the anterior surface of said contact lens element;
- and
- a retaining ring configured to maintain said contact lens element and said image forming lens element in a mating relationship with one another wherein said contact lens element and said image forming lens element are maintained in mating relationship with one another without the use of an adhesive agent therebetween.
1 more element
Dependencies are inferred from the claim text.