Optics: measuring and testing – By light interference – Having polarization
Reexamination Certificate
2011-01-04
2011-01-04
Connolly, Patrick J (Department: 2877)
Optics: measuring and testing
By light interference
Having polarization
C356S508000
Reexamination Certificate
active
07864333
ABSTRACT:
A system for detecting piston diversity between mirror segments. The system includes a pupil plane mask, a transform optical element, and an image detector. The pupil plane mask includes two or more open mask areas and two or more polarizers. Each polarizer is disposed within a respective one of the open mask areas. A first one of the two or more polarizers has a first polarization orientation, and a second of the two or more polarizers has a second polarization orientation.
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Merle Cormic K.
Olczak Gene
Connolly Patrick J
ITT Manufacturing Enterprises Inc.
RatnerPrestia
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