Optical: systems and elements – Lens – With support
Reexamination Certificate
2008-08-04
2009-10-13
Ben, Loha (Department: 2873)
Optical: systems and elements
Lens
With support
C353S101000, C353S122000, C374S121000, C250S2140LS, C250S338100, C219S121670
Reexamination Certificate
active
07602563
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 Esq. Stephen B.
Shaw Esq. Brian B.
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