Method of holding optical elements without deformation during their fabrication
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United States of America Patent
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Apr 29, 1997
Grant Date -
N/A
app pub date -
Sep 21, 1993
filing date -
Sep 21, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved method for securing and removing an optical element to and from a blocking tool without causing deformation of the optical element. A lens tissue is placed on the top surface of the blocking tool. Dots of UV cement are applied to the lens tissue without any of the dots contacting each other. An optical element is placed on top of the blocking tool with the lens tissue sandwiched therebetween. The UV cement is then cured. After subsequent fabrication steps, the bonded blocking tool, lens tissue, and optical element are placed in a debonding solution to soften the UV cement. The optical element is then removed from the blocking tool.
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