公开(公告)号：US20170003425A1

公开(公告)日：2017-01-05

申请号：US15212866

申请日：2016-07-18

Applicant: JSR CORPORATION

Inventor： Katsuya NAGAYA ,  Hiroyuki KISHIDA ,  Takashi TSUBOUCHI ,  Mitsuru NAKAJIMA ,  Ran MITSUBOSHI ,  Yukie TANAKA

IPC: G02B5/20 ,  G02B1/04 ,  H04N5/225 ,  C09B47/04 ,  C09K11/02 ,  C09B57/00 ,  C09B67/22 ,  G02B5/22 ,  C09K11/06

CPC classification number: G02B5/208 ,  C09B23/0066 ,  C09B23/164 ,  C09B47/04 ,  C09B57/007 ,  C09B67/0033 ,  C09B67/0034 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  G02B1/04 ,  G02B5/223 ,  G02B2207/113 ,  H04M1/0264 ,  H04N5/2254

Abstract: The problem of the present invention is to overcome drawbacks of conventional optical filters such as near-infrared cut filters and to provide an optical filter which generates little scatted light even during light absorption and has excellent transmittance property. The optical filter of the present invention is characterized by containing a squarylium-based compound and a compound which absorbs or quenches fluorescence of the squarylium-based compound. The optical filter of the present invention preferably contains a near-infrared absorbing dye containing a squarylium compound (A) and at least one compound (B) selected from the group consisting of a phthalocyanine-based compound (B-1) and a cyanine-based compound (B-2).