Method and apparatus for polishing optical elements

Details Method and apparatus for polishing optical elements Method and apparatus for polishing optical elements

1990-10-01

1992-08-25

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116574, 5116576, 51284R, 51124L, B24B 4900

Patent

active

051407779

ABSTRACT:
An apparatus for controlling the machining of optical elements is disclosed. The apparatus comprises the thus measured value of radius curvature with the measured value of radius curvature of previously polished lens, means for determining curvature correcting value by comparing the thus obtained curvature variation value with a previously set allowed value of radius curvature, means for determining correcting value of machining conditions during the swinging motion based on the thus determined curvature correcting value, and means for adjusting the machining conditions in accordance with the correcting value of machining conditions.

REFERENCES:
patent: 4216626 (1980-08-01), Starp
patent: 4524419 (1985-06-01), Headlund et al.
patent: 4768308 (1988-09-01), Atkinson, III et al.
patent: 4850152 (1989-07-01), Heynacher et al.
patent: 4908997 (1990-03-01), Field et al.
patent: 4956944 (1990-09-01), Ando et al.

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