| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical filter having large absorption in a near infrared light area, excellent in a chemically stable property, near infrared ray absorption performance, heat ray absorption performance, visible light transmitting performance, and light resistance. <P>SOLUTION: In the optical filter having at least a near infrared ray absorbing filter layer on a transparent support, the filter layer contains a near infrared color element expressed by general formula (I) (R<SP>1</SP>and R<SP>2</SP>each express an aliphatic radical, an aromatic radical, or a heterocyclic radical and M expresses Ni, Pd or Pt). <P>COPYRIGHT: (C)2004,JPO |
