Optics: measuring and testing – By polarized light examination
Reexamination Certificate
2005-07-12
2005-07-12
Smith, Zandra V. (Department: 2877)
Optics: measuring and testing
By polarized light examination
C356S121000, C356S491000, C250S201900
Reexamination Certificate
active
06917426
ABSTRACT:
The system includes a first polarizing element; an electro-optically driven birefringent element; a second polarizing element; an optical assembly; and, an optical-to-electronic imaging sensor assembly. The first polarizing element receives an incoming optical wavefront and provides a linearly polarized output therefrom. The electro-optically driven birefringent element receives the linearly polarized output and produces two polarization eigenwaves, an output of the birefringent element being elliptically polarized. The second polarizing element has a polarization axis perpendicular to a polarization axis of the first polarizing element. The second polarizing element receives the output from the birefringent element and provides a linearly polarized output. The optical assembly receives the output of the second polarizing element and forms a real image therefrom. The optical-to-electronic imaging sensor assembly receives the real image and provides an electronic representation thereof, which may be used for real-time reconstruction of the incoming wavefront.
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Shimokaji & Associates P.C.
Smith Zandra V.
Stock, Jr. Gordon J.
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