Grid image and method for the production thereof

Details Grid image and method for the production thereof Grid image and method for the production thereof

2011-07-26

2011-07-26

Pritchett, Joshua L (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S002000, C359S569000, C359S567000

Reexamination Certificate

active

07986459

ABSTRACT:
The present invention relates to a grating image (12) for depicting at least one unscreened halftone image having multiple brightness levels, the grating image exhibiting multiple grating fields (22-1, 22-2, 22-3) that include in each case an electromagnetic-radiation-influencing grating pattern composed of a plurality of grating lines and that, when illuminated, produce in each case an areal region of the halftone image having the same brightness level.

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