Infrared light cut filter, filter for solid-state imaging element, solid-state imaging element, and manufacturing method of filter for solid-state imaging device

摘要

Problem to be solved: to provide an infrared light cut filter capable of suppressing deterioration in spectral characteristics of an infrared light cut filter in a visible light region and an infrared light region, a filter for a solid-state imaging device, a solid-state imaging element, and a method of manufacturing a filter for a solid-state imaging device.An infrared light cut filter 13 is located at both ends of polymethine and polymethine and contains a cation having two heterocycles including nitrogen and a cyanine dye containing tris (pentafluoroethyl) trifluorophosphate and an acrylic polymer Contains an organic peroxide containing an aromatic ring.When the weight of the acrylic polymer is 100 parts by weight, the organic polymer contains less than 0.35 parts by weight.Diagram