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Patent Searching and Data


Title:
OPTICAL FILTER AND DEVICE USING OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2018/043564
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an optical filter that achieves, at a high level, both color shading suppression and ghost suppression in a camera image, both of which cannot be sufficiently achieved by conventional optical filters. This optical filter is characterized by having a substrate satisfying requirements (a) to (c): (a) the substrate has a layer containing a compound (A) having an absorption maximum in a wavelength region of 650-760 nm inclusive; (b) a difference (X2-X1) between the shortest wavelength (X1) and the second shortest wavelength (X2) at which transmissivity becomes 10% in a wavelength region of 640 nm or more is 50 nm or more; and (c) transmissivities at wavelengths of 900 nm, 1000 nm, and 1100 nm are each 65% or less.

Inventors:
KASAI Tatsuya (9-2 Higashi-Shinbashi 1-chome, Minato-k, Tokyo 40, 〒1058640, JP)
NAGAYA Katsuya (9-2 Higashi-Shinbashi 1-chome, Minato-k, Tokyo 40, 〒1058640, JP)
HORIUCHI Masako (9-2 Higashi-Shinbashi 1-chome, Minato-k, Tokyo 40, 〒1058640, JP)
SHIGEOKA Daisuke (9-2 Higashi-Shinbashi 1-chome, Minato-k, Tokyo 40, 〒1058640, JP)
Application Number:
JP2017/031156
Publication Date:
March 08, 2018
Filing Date:
August 30, 2017
Export Citation:
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Assignee:
JSR CORPORATION (9-2 Higashi-Shinbashi 1-chome, Minato-ku Tokyo, 40, 〒1058640, JP)
International Classes:
G02B5/22; B32B7/02; C09B23/00; C09B47/04; C09B57/00; G02B5/26; G02B5/28; H01L27/146
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (Gotanda Yamazaki Bldg. 6F, 13-6 Nishigotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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