| 摘要 |
978,943. Cinematographic projection. C. MICHELSON. Nov. 16, 1961 [April 13, 1961], No. 41066/61. Headings G2E and G2J. A process for projecting a cinematograph film 4 in which two successive photograms 11, 12 are spatially separated from each other by an interval 13 which is an integral multiple of the length of a photogram, comprises producing such diffraction images 9 of the photograms in space so that there are no spaces between successive photograms in the image. A diffraction grating 5 is used in which the lines are perpendicular to the film path and which is arranged in the conjugate plane of a lamp 1, (which illuminates two successive photograms on film 4), with respect to optical system 2, 3. |
