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Patent Searching and Data


Title:
OPTICAL FILTER AND POLARIZATION IMAGING APPARATUS USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/015722
Kind Code:
A1
Abstract:
The present invention is an optical filter (200a) which is provided with: a Fabry-Perot resonator that has a multilayer structure comprising a first metal layer (105), a second metal layer (106) and a dielectric layer (108); and a plate-like wire grid polarizer (107). The second metal layer (106) is parallel to the first metal layer (105); and the dielectric layer (108) is sandwiched between the first metal layer (105) and the second metal layer (106). The plate-like wire grid polarizer (107) is buried in the dielectric layer (108); and the plate-like wire grid polarizer (107) is provided with three or more metal wire layers. The metal wire layers are parallel to each other; and the plate-like wire grid polarizer (107) is parallel to the first metal layer (105). The effective extinction ratio of the wire grid polarizer (107) is increased in the optical filter (200a) according to the present invention.

Inventors:
KANAMORI KATSUHIRO
MATSUNO TOSHINOBU
SHIONO TERUHIRO
Application Number:
PCT/JP2014/003707
Publication Date:
February 05, 2015
Filing Date:
July 14, 2014
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01L27/14; G02B5/20; G02B5/30; H04N5/225; H04N5/369; H04N9/07
Domestic Patent References:
WO2013031100A12013-03-07
Foreign References:
JP2009237147A2009-10-15
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
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