Method and apparatus for blocking and deblocking a lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 8, 2005
Grant Date -
Jun 10, 2004
app pub date -
Dec 4, 2002
filing date -
Dec 4, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein is a block including a block base configured to support a lens for surfacing or finishing, a cover retained to the base, and a formable material disposed between the base and the cover. Further disclosed herein is a system for blocking a lens including a block base configured to support a lens for processing, a cover retained to the base, a formable material disposed between the base and the cover, and a receptacle configured to receive the base to heat and cool the base. Further disclosed herein is a method for blocking a lens includes heating a block to render the formable material pliable, applying a lens to the block, and cooling the block to render the material non-pliable. A method for blocking a lens includes rendering a formable material of a block pliable, deforming the material with a lens, rendering the formable material non-pliable and causing a vacuum between the formable material and the lens to hold the lens to the block. A method for deblocking a lens includes heating a formable material of a block and removing the lens from the block.
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