发明名称 |
Infrared-blocking optical filter |
摘要 |
<p>Disclosed herein is an infrared-blocking optical filter having optical properties that the transmittance to rays in a visible region is excellent while rays in a near infrared region, particularly, in a wavelength range longer than 1200 nm are cut off or attenuated with high efficiency. The infrared-blocking optical filter includes a transparent substrate and either of the following infrared-blocking films (A) and (B) provided on a surface of the transparent substrate. Film (A): an infrared-blocking film formed of a synthetic resin in which fine powder of a metal oxide material composed of indium oxide and/or tin oxide is dispersed; and Film (B): an infrared-blocking film formed of a deposit of a metal oxide material composed of indium oxide and/or tin oxide. The infrared-blocking film may be formed on a transparent support member to constitute an infrared-blocking composite film which is provided on a surface of the transparent substrate to form an infrared-blocking optical filter.</p> |
申请公布号 |
EP0687923(A2) |
申请公布日期 |
1995.12.20 |
申请号 |
EP19950109253 |
申请日期 |
1995.06.14 |
申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
SHOUJI, MASUHIRO;KATONO, HIROKI;OGIHARA, TAKEO;SAKAGAMI, TERUO |
分类号 |
G02B5/20;(IPC1-7):G02B5/22 |
主分类号 |
G02B5/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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