Castable ophthalmic lens polishing lap and method

Details Castable ophthalmic lens polishing lap and method Castable ophthalmic lens polishing lap and method

1995-09-28

1997-01-14

Kisliuk, Bruce M.

Abrading

Abrading process

Glass or stone abrading

451 53, 451460, 451495, B24B 100

Patent

active

055933408

ABSTRACT:
A single castable ophthalmic lens polishing lap includes a mounting plate that is adapted for connection to a lap press/cylinder machine and includes a flexible membrane that is affixed to the mounting plate and filled with castable material. A polishing pad is affixed to the flexible membrane. The lap is cast by first applying energy to the castable material that causes it to soften, and to preferably change to a fluid phase, and then pressing the lap against the rough cut back surface of a lens. This causes the castable material to deform so that the lap's curvature is complementary to the lens' prescription curvature. Energy is then removed from the lap so that the castable material solidifies in the desired shape. After polishing, the lap can be recast with another lens having a different prescription.

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patent: 5345725 (1994-09-01), Anthony
Semi-Tech, Inc. Optical Equipment and Supply Catalog, Opti-Speed 2100 Surface and Polish Machine, 1993.

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