Microgrid arrangement for integrated imaging polarimeters

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United States of America Patent

PATENT NO 9857226
SERIAL NO

14619058

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Abstract

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An integrated microgrid imaging polarimeter comprises a repeating pattern of wiregrid polarizers in a new 2×4 array that improves image resolution and quality by increasing the spatial bandwidth available for each Stokes image despite that the new repeating pattern is larger than prior art 2×2 arrays. An example embodiment has polarization orientations of the wiregrid polarizers in each 2×4 array, beginning from an arbitrary top left polarizer of each array and continuing clockwise, as: 45 degrees; zero degrees; 315 degrees; 90 degrees; zero degrees; 45 degrees; 90 degrees; and, 315 degrees. The disclosure includes an analysis showing development of the new 2×4 array and supporting its improved performance over prior art 2×2 arrays.

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Patent Owner(s)

Patent OwnerAddress
GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE2240 B STREET BLDG 11 WRIGHT- PATTERSON AFB OH 45433

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirakawa, Keigo Dayton, US 10 116
LeMaster, Daniel A Dayton, US 1 16

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