Title:
POLARIZATION IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/066738
Kind Code:
A1
Abstract:
This invention simultaneously generates a plurality of polarized images of a subject without weakening light intensity. Provided is a polarization imaging system comprising an imaging unit array in which a plurality of imaging units are arrayed two-dimensionally. Each imaging unit comprises a single wavefront control element having a plurality of microstructures and a pixel array that is disposed so as to oppose the wavefront control element and includes a plurality of pixels that correspond to the wavefront control element and are arrayed two-dimensionally. Each single wavefront control element spatially divides the light from the subject into first polarized light and second polarized light having a polarization direction orthogonal to that of the first polarized light or having a rotation direction that is the reverse of that of the first polarized light. The first polarized light is concentrated on a first concentration position on the pixel array. The second polarized light is concentrated on a second concentration position on the pixel array.
Inventors:
MIYATA MASASHI (JP)
NAKAJIMA MITSUMASA (JP)
HASHIMOTO TOSHIKAZU (JP)
NAKAJIMA MITSUMASA (JP)
HASHIMOTO TOSHIKAZU (JP)
Application Number:
PCT/JP2019/036314
Publication Date:
April 02, 2020
Filing Date:
September 17, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01J4/04; G02B5/20; G02B5/30; G03B11/00; H01L27/146
Domestic Patent References:
| WO2018147473A1 | 2018-08-16 | |||
| WO2012002207A1 | 2012-01-05 |
Foreign References:
| CN108088564A | 2018-05-29 | |||
| CN108007575A | 2018-05-08 | |||
| JP2013074400A | 2013-04-22 | |||
| JP2018044865A | 2018-03-22 | |||
| JP2015166723A | 2015-09-24 | |||
| JP2015115329A | 2015-06-22 | |||
| JP2011176525A | 2011-09-08 | |||
| JP2016127512A | 2016-07-11 | |||
| JP2009168795A | 2009-07-30 | |||
| US20090303571A1 | 2009-12-10 |
Other References:
"One-shot spectral polarization imaging using photonic crystal filter array", THE 24TH SYMPOSIUM ON SENSING VIA IMAGE INFORMATION(SSII2018, 13 June 2018 (2018-06-13)
"Novel Functions in Microscopy Realized by Patterned Photonic Crystals", IEICE TRANSACTIONS ON ELECTRONICS, vol. E90-C, no. 5, 1 May 2007 (2007-05-01), pages 1046 - 1054, XP001542171
"Fabrication of a Thin Film Micro Polatization Array", 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, 21 May 2006 (2006-05-21)
"Novel Functions in Microscopy Realized by Patterned Photonic Crystals", IEICE TRANSACTIONS ON ELECTRONICS, vol. E90-C, no. 5, 1 May 2007 (2007-05-01), pages 1046 - 1054, XP001542171
"Fabrication of a Thin Film Micro Polatization Array", 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, 21 May 2006 (2006-05-21)
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
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