| 摘要 |
FIELD: physics; photography. ^ SUBSTANCE: invention relates to a method of photographing where a photosensitive material is exposed with the positive and negative image of the photographed object and where the negative image of the photographed object is blurred. A blurred mask, which is a negative image of the photographed object, is constructed on a transparent flat element lying in front of the photosensitive material, after which the photosensitive material is exposed with the sharp positive image of the same object in any order through the constructed mask. The device for realising the given method has an optical channel which has a lens, a transparent element for constructing the blurred mask lying in the vicinity of the photosensitive material, and an optical-electronic channel for constructing the blurred mask. The device also has a radiation source directed on the transparent element and creates uniform illumination on the element in the spectral sensitivity range of the photosensitive material. ^ EFFECT: invention enables matching dynamic range of the input signal and the photosensitive material, and increases image quality as well. ^ 6 cl, 3 dwg |
