发明名称 |
NEAR-INFRARED CUT FILTER AND SOLID-STATE IMAGING DEVICE |
摘要 |
There are provided a near-infrared cut filter that effectively uses near-infrared absorbing glass and a near-infrared absorbing dye and is excellent in a near-infrared shielding property, and a high-sensitivity solid-state imaging device including the same. A near-infrared cut filter includes: a near-infrared absorbing glass substrate made of CuO-containing fluorophosphate glass or CuO-containing phosphate glass; and a near-infrared absorbing layer containing a near-infrared absorbing dye (A) and a transparent resin (B), on at least one principal surface of the near-infrared absorbing glass substrate, wherein an average value of a transmittance in a 400 nm to 550 nm wavelength range is 80% or more, and an average value of a transmittance in a 650 nm to 720 nm wavelength range is 15% or less. |
申请公布号 |
US2015146057(A1) |
申请公布日期 |
2015.05.28 |
申请号 |
US201514613057 |
申请日期 |
2015.02.03 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
KONISHI Teppei;Arishima Hiroyuki;Shiono Kazuhiko;Hotaka Hiroki;Hasegawa Makoto;Shimoda Hiroshi;Komori Atsushi;Ikoma Aya |
分类号 |
G02B5/20;C03C3/16;H04N5/357;H04N5/335;G02B5/22;G02B5/28;G02B1/04;C03C4/08 |
主分类号 |
G02B5/20 |
代理机构 |
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代理人 |
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主权项 |
1. A near-infrared cut filter comprising:
a near-infrared absorbing glass substrate made of CuO-containing fluorophosphate glass or CuO-containing phosphate glass; and a near-infrared absorbing layer containing a near-infrared absorbing dye (A) and a transparent resin (B), on at least one principal surface of the near-infrared absorbing glass substrate, wherein in the near-infrared cut filter, an average value of a transmittance in a 400 nm to 550 nm wavelength range is 80% or more, and an average value of a transmittance in a 650 nm to 720 nm wavelength range is 15% or less. |
地址 |
Chiyoda-ku JP |