Title:
INFRARED CUTOFF FILTER, IMAGING DEVICE, AND METHOD FOR MANUFACTURING INFRARED CUTOFF FILTER
Document Type and Number:
WIPO Patent Application WO/2017/006571
Kind Code:
A1
Abstract:
This infrared cutoff filter is provided with an organic dye-containing layer and a copper-phosphonate-containing layer that contains copper phosphonate microparticles. The organic-dye-containing layer contains an organic dye so that the spectral transmittance is reduced from 70% or more to 50% or less in accordance with an increase in wavelength in a wavelength region between a wavelength 50 nm less than the cutoff wavelength of the infrared cutoff filter and a wavelength 50 nm greater than the cutoff wavelength of the infrared cutoff filter.
Inventors:
KUBO YUICHIRO (JP)
SHIMMO KATSUHIDE (JP)
SHIMMO KATSUHIDE (JP)
Application Number:
PCT/JP2016/003254
Publication Date:
January 12, 2017
Filing Date:
July 08, 2016
Export Citation:
Assignee:
NIPPON SHEET GLASS CO LTD (JP)
International Classes:
G02B5/22
Foreign References:
JP2014052482A | 2014-03-20 | |||
JP2009242650A | 2009-10-22 | |||
JP2011203467A | 2011-10-13 | |||
JP2014197170A | 2014-10-16 |
Attorney, Agent or Firm:
KAMADA, Koichi et al. (JP)
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