OPHTHALMOLOGIC LENS ASSEMBLY
First Claim
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1. An ophthalmologic lens assembly, comprising:
- a glass prism having a posterior lens surface and an anterior lens surface;
a meniscus lens having an anterior lens surface bonded to the posterior lens surface of the glass prism and a posterior lens surface that is adapted to contact a patient'"'"'s eye;
a housing having a central hollow bore in which the glass prism is fitted and a posterior end which secured to the meniscus lens.
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Abstract
An ophthalmologic lens assembly includes a glass prism bonded to a meniscus lens at a posterior end of the glass prism. The glass prism is surrounded by a housing that is bonded to the meniscus lens. In one embodiment, the housing and a meniscus lens blank are processed by grinding and polishing the housing and meniscus lens blank together to form a posterior lens surface of a meniscus contact lens. In other embodiment, only the meniscus lens blank is processed by grinding and polishing to form a posterior lens surface of a meniscus contact lens.
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Citations
18 Claims
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1. An ophthalmologic lens assembly, comprising:
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a glass prism having a posterior lens surface and an anterior lens surface; a meniscus lens having an anterior lens surface bonded to the posterior lens surface of the glass prism and a posterior lens surface that is adapted to contact a patient'"'"'s eye; a housing having a central hollow bore in which the glass prism is fitted and a posterior end which secured to the meniscus lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of assembling an ophthalmologic lens assembly, comprising:
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bonding an anterior lens surface of a meniscus lens blank to a posterior lens surface of a glass prism; positioning the glass prism and the meniscus lens blank into a hollow bore of a housing blank; securing the meniscus lens blank and the housing blank together at a posterior end of the housing blank; and processing the posterior end of the housing blank and the posterior end of the meniscus lens blank to form a posterior lens surface of a meniscus contact lens. - View Dependent Claims (12, 13, 14, 15)
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16. A method of assembling an ophthalmologic lens assembly, comprising:
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securing an anterior lens surface of a meniscus lens blank to a corresponding mating surface on a housing blank; positioning a glass prism within a hollow bore of the housing blank and bonding a posterior lens surface of the glass prism to the anterior lens surface of the meniscus lens blank; and processing a posterior end of the meniscus lens blank to form a posterior lens surface of a meniscus contact lens. - View Dependent Claims (17, 18)
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Specification