Method for working the marginal zones of a lens

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

1974-05-29

1976-04-06

Smith, Al Lawrence

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 100

Patent

active

039480070

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: 3082013 (1963-03-01), Thielenhaus
patent: 3427703 (1969-02-01), Baade
patent: 3578850 (1971-05-01), Grant
patent: 3722143 (1973-03-01), Cottom
patent: 3736115 (1973-05-01), Blum
patent: 3750272 (1973-08-01), Gomond
patent: 3810403 (1974-05-01), Ianuzzi

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