Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2009-05-04
2011-10-18
Le, Que T (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S208100
Reexamination Certificate
active
08039776
ABSTRACT:
A wavefront microscope or camera utilizes a wavefront sensor to measure the local intensity and phase gradient of the wavefront and output image maps based on the intensity and phase gradient. A wavefront sensor provides a metal film having patterned structured two dimensional (2D) apertures that convert a phase gradient of a wavefront into a measurable form onto a photodetector array. A computer is used to analyze the data by separating signals projected and recorded on the array from the different apertures, predict a center of each projection, and sum signals for each projection to display the intensity while determining a center position change/offset from the predicted center to display the phase gradient of the wavefront.
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Cui Xiquan
Tearney Guillermo J.
Yang Changhuei
California Institute of Technology
Le Que T
Martinez-Lemke Sheila
The General Hospital Corporation
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