Method and system for generating substantially uniform...

Details Method and system for generating substantially uniform... Method and system for generating substantially uniform...

2007-02-20

2007-02-20

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S565000, C359S019000

Reexamination Certificate

active

11016415

ABSTRACT:
A diffractive optical element is positioned in an optical path between a coherent light source and a surface. The diffractive optical element is designed to disperse the light across one or more spots on the surface in a manner designed to create speckle patterns having substantially uniform intensities.

REFERENCES:
patent: 5850300 (1998-12-01), Kathman et al.
patent: 6002520 (1999-12-01), Hoch et al.
patent: 6618185 (2003-09-01), Sandstrom

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