Optics: measuring and testing – By light interference – Having light beams of different frequencies
Reexamination Certificate
2006-05-02
2006-05-02
Lee, Andrew H. (Department: 2877)
Optics: measuring and testing
By light interference
Having light beams of different frequencies
C359S032000
Reexamination Certificate
active
07038787
ABSTRACT:
Systems and methods are described for content-based fused off-axis illumination direct-to-digital holography. A method includes calculating an illumination angle with respect to an optical axis defined by a focusing lens as a function of data representing a Fourier analyzed spatially heterodyne hologram; reflecting a reference beam from a reference mirror at a non-normal angle; reflecting an object beam from an object the object beam incident upon the object at the illumination angle; focusing the reference beam and the object beam at a focal plane of a digital recorder to from the content-based off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis; and digitally recording the content based off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis.
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Bruckner PC John
Lee Andrew H.
UT-Battelle LLC
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