Invention Grant
- Patent Title: Near infrared ray absorbent composition, near infrared ray cut filter, solid image pickup element, and camera module
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Application No.: US15497959Application Date: 2017-04-26
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Publication No.: US10215898B2Publication Date: 2019-02-26
- Inventor: Kouitsu Sasaki , Takashi Kawashima , Seiichi Hitomi , Yasuharu Shiraishi
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2014-219261 20141028; JP2015-179497 20150911
- Main IPC: C07F1/08
- IPC: C07F1/08 ; G02B5/20 ; C07F9/113 ; H04N5/225

Abstract:
Provided are a near infrared ray absorbent composition which can form a cured film having excellent near infrared ray shielding properties, a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module. The near infrared ray absorbent composition includes a copper complex that is other than a copper phthalocyanine complex and has a maximum absorption wavelength in a wavelength range of 700 to 1,200 nm and in which a molar light absorption coefficient at the maximum absorption wavelength is greater than or equal to 100 (L/mol·cm).
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