Method for grinding and polishing lenses on same machine
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United States of America Patent
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Mar 29, 1988
Grant Date -
N/A
app pub date -
Sep 4, 1986
filing date -
Sep 4, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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