Lens generator and tool cutter

Details Lens generator and tool cutter Lens generator and tool cutter

1993-06-01

1994-09-06

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Process

409197, 409199, 409217, B23C 300

Patent

active

053442610

ABSTRACT:
The lens generator which produces a curved surface in a lens blank while simultaneously producing a complementary curved surface in a lap or tool used to fine and polish the lens. By producing a tool having the exact shape as the lens, it is possible to manufacture the lens precisely to the requirements of a customer's prescription. By simultaneously cutting the lens and the lap, the production time is decreased as compared to generators that first produce a lens and subsequently produce a lap. A mechanical arrangement is used resulting in a simple and inexpensive machine.

REFERENCES:
patent: 3910159 (1975-10-01), Gladwin
patent: 4061077 (1977-12-01), Gladwin
patent: 4264249 (1981-04-01), Dawson
patent: 5217335 (1993-06-01), Houchens, Jr. et al.

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