Optics: measuring and testing – Miscellaneous
Reexamination Certificate
2006-08-28
2010-12-28
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
Miscellaneous
C250S225000, C359S885000
Reexamination Certificate
active
07859658
ABSTRACT:
A polarizing filter includes a portion with a filtering layer having a plurality of openings extending therethrough, where this portion has a maximum physical thickness in a radiation travel direction which is less than approximately one wavelength of the radiation being filtered. A method of making the filter includes: forming a filtering layer over a substrate; creating a plurality of openings through a portion of the filtering layer; and separating the filtering layer from the substrate.
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Chahal Premjeet
Morris Francis J.
Baker & Botts L.L.P.
Chowdhury Tarifur
Pajoohi Tara S
Raytheon Company
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