OPTICAL FILTER AND APPARATUS USING OPTICAL FILTER

    公开(公告)号:US20190101672A1

    公开(公告)日:2019-04-04

    申请号:US16078238

    申请日:2017-03-15

    Abstract: The object of the present invention is to provide an optical filter which has not only a high visible light transmittance, but also high light cut characteristics in the near-infrared wavelength region, and which is excellent in heat resistance. The optical filter of the present invention comprises a base material comprising a compound (S) having an absorption maximum in the region of 600 to 1150 nm and an antioxidant (P) having at least one phosphorus atom in a molecule, and a dielectric multilayer film formed on at least one surface of the base material.

    OPTICAL FILTER, AMBIENT LIGHT SENSOR AND SENSOR MODULE

    公开(公告)号:US20180364095A1

    公开(公告)日:2018-12-20

    申请号:US15779850

    申请日:2016-11-28

    Abstract: One object of the present disclosure is to show an optical filter capable of realizing both an excellent visible light transmittance and an excellent near-infrared ray-shielding performance even if an incident angle becomes large. The optical filter of the present disclosure has a base material (i) including a light absorbing layer, and transmits visible light, wherein the light absorbing layer has a maximum absorption in a wavelength range of 750 nm to 1,150 nm, and in a wavelength range of 850 nm to 1,050 nm, an average OD value measured in a direction perpendicular to the optical filter is 2.0 or more, and an average OD value measured at an angle of 60° with respect to the direction perpendicular to the optical filter is 2.0 or more.

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