Apparatus for working the marginal zones of a lens

Details Apparatus for working the marginal zones of a lens Apparatus for working the marginal zones of a lens

1975-06-13

1976-09-07

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51216LP, 51277, B24B 1300, B24B 914

Patent

active

039786200

ABSTRACT:
A lens of a soft and readily damaged material is placed onto a support having a surface whose contour corresponds to the mating contour of the juxtaposed surface of the lens. The support is rotated and the lens is shifted on it until the lens is centered on the surface of the support, whereupon suction is applied through the support to the lens to hold it immovable as the marginal zones of the lens are being worked.

REFERENCES:
patent: 3528326 (1970-09-01), Kilmer
patent: 3722143 (1973-03-01), Cottom
patent: 3750272 (1973-08-01), Gomond
patent: 3810403 (1974-05-01), Ianuzzi
Heywood, Grinding Wheels and Their Uses, 1938, pp. 4 and 14.

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