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.
申请公布号
WO2004079335(A3)
申请公布日期
2005.04.14
申请号
WO2004US04610
申请日期
2004.02.17
申请人
RAYTHEON COMPANY;CHAHAL, PREMJEET (NMI);MORRIS, FRANCIS, J.