Optical: systems and elements – Lens – With support
Reexamination Certificate
2006-12-04
2008-08-05
Ben, Loha (Department: 2873)
Optical: systems and elements
Lens
With support
C359S288000, C359S554000, C374S129000, C219S667000
Reexamination Certificate
active
07408728
ABSTRACT:
An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens.
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Bloch Stephanie
Schwab Fred J.
Ben Loha
Harter Secrest & Emery LLP
Quality Vision International, Inc.
Salai Stephen B.
Shaw Brian B.
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