Production of straight line relief negative film for relief printing
专利汇可以提供Production of straight line relief negative film for relief printing专利检索，专利查询，专利分析的服务。并且PURPOSE: To produce the captioned film capable of mass-producing relief printed matter easily and at low cost, by setting a relief pattern plain paper to the original frame of the camera for photographing the reflecting original, properly radiating light beams, and photographing into the lith-film by using straight line contact screen.
CONSTITUTION: A glare-free, relief pattern plain paper 1 is set, as the object, in an original frame 2 of a camera for photographic reflecting original. At the opposite position of this plain paper 1 is disposed a camera lens 3, and the light beam from an illuminating body 4 provided on one side of the front side of the plain paper 1 is radiated so that the relief may be formed in desired state as seen from the central part of the lens 3. In this case, opposedly to the illuminating body 4 is provided an illuminating apparatus 5 consisting of reflecting plate M and auxiliary lamp N, and a weak light is radiated from the opposite side. After setting the angle and intensity of the illumination, a photograph is printed on a lith-film 7 by using a straight line (or dot) contact screen 6, so that straight line (or dot) relief negative film may be produced.
COPYRIGHT: (C)1980,JPO&Japio，下面是Production of straight line relief negative film for relief printing专利的具体信息内容。
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