This invention relates to photographic silver halide emulsions spectrally sensitized to infrared radiation above 800nm and to a class of pentamethine cyanine dyes of 5-fluorobenzothiazole derivatives useful as the infrared sensitizing dyes.
本发明涉及对 800nm 以上红外辐射分光感光的照相卤化
银乳剂,以及一类可用作红外感光
染料的
5-氟苯并噻唑衍
生物的五甲基
氰基
染料。