TOOL FOR SMOOTHING OR POLISHING OPTICAL SURFACES
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United States of America Patent
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Issued Date -
Aug 11, 2011
app pub date -
Feb 7, 2011
filing date -
Feb 8, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is disclosed a tool for smoothing or polishing an optical surface. The tool comprises: a body part which is rotatable about an axis of rotation; and a plurality of pads arranged in an array to bear against said optical surface for movement across the surface as the tool is rotated about said axis of rotation, wherein said pads are each mounted: i) for substantially linear movement relative to said body part in a direction substantially normal to said surface in the region where the pad contacts the surface; and ii) universal pivotal movement relative to said body part. The pads are biased towards said optical surface. In a preferred arrangement, a plurality of pistons are mounted for individual reciprocating movement relative to the body part along respective longitudinal axes, each of said pistons having a distal end to which a respective said pad is universally articulated, wherein said pistons are each biased towards said optical surface.
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