ORGANIC OPTICAL MATERIAL

摘要

PURPOSE:To develop a filter material having small absorption in a visible region and large absorption in a near infrared region, a filter being required to correct sensitivity because sensors of silicon and cadmium sulfide have high sensitivity of red. CONSTITUTION:A polymer matrix resin is blended with a compound containing carboxyl, phosphate or sulfo group and a necessary amount of a metallic copper compound and uniformly solidified to give an organic substance having small absorption in a visible region and large absorption in a near infrared region.