Method and apparatus for surfacing optical lenses

Details Method and apparatus for surfacing optical lenses Method and apparatus for surfacing optical lenses

1984-08-23

1986-07-08

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51234, 51216LP, 51124L, 511312, B24B 100, B24B 1300

Patent

active

045985022

ABSTRACT:
A lens holder device is employed having a bell-shaped chamber, at least a portion of the sidewall of the chamber at an open end thereof having a circular section and adapted to accommodate with radial clearance a lens to be surfaced. A conduit communicates with the chamber and supplies pressurized hydraulic fluid into the chamber. The pressurized hydraulic fluid in the chamber forms a hydraulic cushion for the lens, and a hydraulic film flowing between the peripheral edge of the lens and the sidewall portion, the hydraulic film flowing out of the open end of the chamber.

REFERENCES:
patent: 3210894 (1965-10-01), Bentley et al.
patent: 3589071 (1971-06-01), Hirschhorn
patent: 3889426 (1975-06-01), Blum
patent: 4373991 (1983-02-01), Banks

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