| abstract |
PURPOSE: To enhance sufficient spectral sensitivity in a wide wavelength region by incorporating a specified squarium pigment. n CONSTITUTION: The photosensitive body contains the squarium pigment represented by formula I in which each of R 1 - R 4 is H, halogen, optionally substituted aliphatic hydrocarbon group, alkoxy, amino,k aryl, or a heterocyclic group; R 5 is an optionally substituted aliphatic hydrocarbon group or aryl or heterocyclic group; and each of Z 1 and Z 2 is an optionally substituted cyclic hydrocarbon group or heterocyclic group, thus permitting sufficient spectral sensitivity in the wide wavelength region from the visible region to the near infrared region to be obtained. n COPYRIGHT: (C)1992,JPO&Japio |