发明名称 Method and apparatus for making a print of an object
摘要 A method of making a print of an object, photographed by a stereo camera to provide first and second stereo transparencies thereof, comprises copying one of the first and second transparencies to prepare a third transparency. The first transparency and the third transparency are optically superimposed on each other to provide a first combination of light. A line screen negative is prepared having a plurality of black lines of equal thickness in parallel relation equidistantly spaced from each other by clear lines equal in thickness to the black lines. Photosensitive material is exposed to the first combination of light via the line screen negative to provide a first exposure. The second transparency and the third transparency are optically superimposed on each other to provide a second combination of light. The line screen negative is shifted in position by the thickness of a black line thereof on the first exposure. The photosensitive material is re-exposed to the second combination of light via the shifted line screen negative to expose the lines of the first exposure covered by the black lines of the negative in providing the first exposure to provide a complete exposure. The complete exposure is printed as a single print. The print is lenticulated whereby it appears to be three-dimensional to a human eye.
申请公布号 US4056316(A) 申请公布日期 1977.11.01
申请号 US19760675306 申请日期 1976.04.09
申请人 ZUTRAUEN, HOWARD C. 发明人 ZUTRAUEN, HOWARD C.
分类号 G03B35/14;(IPC1-7):G03B27/32 主分类号 G03B35/14
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