Optical: systems and elements – Diffraction – From grating
Reexamination Certificate
2007-08-28
2007-08-28
Assaf, Fayez G. (Department: 2872)
Optical: systems and elements
Diffraction
From grating
C359S565000, C359S575000
Reexamination Certificate
active
11280313
ABSTRACT:
A blazed diffractive optical element has a support and a plurality of blazed diffraction structures. The diffraction structures are applied on the support and are spaced apart by a locally varying grating constant. In a first region, the diffraction structures have an at least approximately ramp-shaped profile. In a second region, the diffraction structures are binary blazed by splitting them into substructures that may have the shape of pillars or bars.
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Assaf Fayez G.
Carl Zeiss AG
Sughrue & Mion, PLLC
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