Patent ID: 6333143
Filing Date: 2001-12-25
Classification: G03C,Y10S

Abstract:
A method for forming an image on a light-sensitive material having on a base at least a light-sensitive silver halide emulsion and a binder, which comprises, subjecting at least one light-sensitive layer to exposure to light with an exposure head that has a plurality of different light sources for emitting lights in respective specific wavelength regions correspondingly to adjacent exposure picture elements, to form an image, wherein, in the specific wavelength regions from the shortest wavelength to the longest wavelength for the respective plurality of light sources to be used, the change in sensitivity of the light-sensitive material in a spectral sensitivity curve obtained by plotting sensitivities of the light-sensitive material in terms of the specific wavelength regions including the wavelengths in centers of gravity of respective light sources is 0.01 log E/nm or less, wherein the light sources for emitting lights in specific wavelength regions are LEDs having wavelengths selected from the light emitting wavelength range of the visible region and the infrared region.