Optical surface polisher

Details Optical surface polisher Optical surface polisher

1976-09-22

1978-12-12

Smith, Gary L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51119, 5116571, B24C 702

Patent

active

041289684

ABSTRACT:
An apparatus for precisely polishing an optical surface is described. The apparatus includes polishing pads which are small in size in comparison with the surface being polished. The pads are maintained in contact with and moved across the surface being polished by a pad driver in a manner producing a removal profile which is maximum at the center of pad movement and minimum at the extremes of pad movement. A position drive means is utilized to move the pad drive along a substantially spiraling path centered at the center of the surface being polished and spiraling outward to the parimeter where parallel spiral arcs are spaced a constant distance apart along any given path radius. By controlling the speed of movement along the contour path, the rate of material removal at a particular position on the optical surface is controlled.

REFERENCES:
patent: 1281001 (1918-10-01), Hazel
patent: 2909871 (1959-10-01), Heymes
patent: 3254454 (1966-06-01), Cetrangolo
patent: 3564776 (1971-02-01), Aspden
patent: 3589078 (1971-06-01), Bala
patent: 3874123 (1975-04-01), Hopkins

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