Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Reexamination Certificate
2011-03-22
2011-03-22
Lavarias, Arnel C (Department: 2872)
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
C359S558000, C359S900000
Reexamination Certificate
active
07911698
ABSTRACT:
A monolithic or hybrid integrated optical processor or optical processing system having a plurality of phase shifting array elements, each controlled by respective control signals, and arranged so that each phase shifting array element lies in a different fractional Fourier transform plane. In various embodiments, at least a portion of the resulting system is implemented in a stack of element materials. In one embodiment, a segment of graded index material lies between consecutive phase shifting array elements. Other features include obtaining images from an electronically-controllable image source, using an image sensor to change the processed image into an electrical output, and using at least one of the phase shifting array element to introduce a phase shift.
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Lavarias Arnel C
Schmoyer Craig W.
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