Method for grinding and polishing lenses on same machine

Details Method for grinding and polishing lenses on same machine Method for grinding and polishing lenses on same machine

1986-09-04

1988-03-29

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51DIG34, 51406, 51407, B24B 100, B24D 1100

Patent

active

047335025

ABSTRACT:
The method of both the surface grinding, or fining, and the polishing of a lens are accomplished on the same surfacing machine spindle, precisely reproducing the curvature and alignment from fining to polishing, thereby resulting in improved surface quality and optical properties. The fine grinding and polishing are accomplished using plain water by sequentially securing to and releasing from the lap, via a high shear-low peel strength adhesive, (a) a fixed abrasive fining pad, and then (b) a polishing pad consisting of a water soluble matrix containing the polishing particles.

REFERENCES:
patent: 2554070 (1951-05-01), Stead
patent: 3128580 (1964-04-01), Davis
patent: 3290828 (1966-12-01), Bonin
patent: 4288233 (1981-09-01), Wiand
patent: 4576612 (1986-03-01), Shukla et al.

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