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Title:
APPARATUS FOR FORMING CONTACT LENS
Document Type and Number:
Japanese Patent JPS5467293
Kind Code:
A
Abstract:
A contact lens adapted for proximate contact with the eyeball comprises a posterior surface A and an anterior surface B, the edge being radiused at r5. Each surface A,B is a composite of a plurality of optical surfaces each of which is defined by an individual radius of curvature r1, r2, r3, r4 each of which is accurate to within a tolerance of 0.00025 cm. The lens, which is of hydrophilic polymer has no sharp juncture between the optical and lenticular regions and the posterior surface is preferably aspherical.

Inventors:
ROBAATO GURANBIRU SUPURIIGUSU
Application Number:
JP9447478A
Publication Date:
May 30, 1979
Filing Date:
August 02, 1978
Export Citation:
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Assignee:
AUTOMATED OPTICS
International Classes:
B23B5/00; B24B13/00; B29C39/00; B29C61/00; B29C69/00; B29D11/00; G02C7/04; (IPC1-7): B24B13/00; B29D11/00; G02C7/04



 
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