专利内容由知识产权出版社提供
专利名称：SENSITOMETRIC MODIFICATION BY PRE-EXPOSURE
发明人：LAND E,US申请号：US30071072申请日：19721025公开号：US3819376A公开日：19740625
摘要：The sensitometric properties of multicolor diffusion transfer film units may bemodified after the photosensitive element has been coated. Sensitometric modification iseffected by a uniform exposure of the photosensitive element to light of a
predetermined intensity and wavelength range. In accordance with this invention, theslopes of one or more of the individual D log E curves may be modified to bring saidcurves into a more parallel relationship with each other.
申请人：POLAROID CORP,US
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