FIELD: physics.
SUBSTANCE: image formation mean comprises a light source and a cover cap to cover the area of the object surface. The part of the inner surface of the cap corresponding to a given angular range from the direction of the normal to the surface of the object, lying directly opposite to the given region, is blackened. Another part of the inner surface of the cover cap, corresponding to the other angular range, is made diffusing and emitting light on the surface of the object, which is emitted by the light source.
EFFECT: providing the formation of a contrast image of a mirror surface that contains convex and concave elements.
10 cl, 11 dwg
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