Optical: systems and elements – Diffraction – From grating
Reexamination Certificate
2005-10-11
2005-10-11
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Diffraction
From grating
C359S562000, C359S630000, C345S007000
Reexamination Certificate
active
06954308
ABSTRACT:
A diffraction grating generates even-order, odd-order, and 0th-order exit-pupil images. The even-order exit-pupil images have brightness levels within a first range and the odd-order exit-pupil images have brightness levels within a second range that is different from the first range. In one example, the even-order exit-pupil images are virtually invisible, i.e., missing, the odd-order exit-pupil images have the same or approximately the same intensities, and the 0th-order exit-pupil image has an intensity greater than the respective intensities of the odd-order exit-pupil images.
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Boutsikaris Leonidas
Graybeal Jackson Haley LLP
Microvision Inc.
Wiklof Christopher A.
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