Optical filter and imaging device

专利名称：Optical filter and imaging device发明人：Yoshiharu Ooi,Kazuhiko Shiono,Asana

Yoshioka,Shoko Suzuki,Hiroki Hotaka

申请号：US15466118申请日：20170322公开号：US10228500B2公开日：20190312

专利附图：

摘要：An optical filter includes: an absorption layer containing a first near-infraredabsorbent having a maximum absorption in a wavelength of 660 to 785 nm, and satisfying(i-1) in 620 to 670 nm, on a shorter wavelength side of a wavelength λ (DA_T) exhibitingthe maximum absorption, there is a wavelength λSh (DA_T50%) at which a transmittancebecomes 50%; and a reflection layer formed of a dielectric multilayered film satisfying (ii-1) in 670 to 1200 nm, there is a near-infrared reflection band in which a transmittance withrespect to light at an incident angle of 0° becomes 50% or less, and a wavelength λSh(A2_Ts50%) at which a transmittance of light of an s polarization component out of lightat an incident angle of 30° becomes 50%, on a shorter wavelength side of the near-infrared reflection band, is positioned on a longer wavelength side of the wavelength λSh(DA_T50%).

申请人：AGC Inc.

地址：Chiyoda-ku JP

国籍：JP

代理机构：Oblon, McClelland, Maier & Neustadt, L.L.P.

更多信息请下载全文后查看