Abstract
The paper describes industrial products geometrical parameters inspection systems. The systems are developed from a structured illumination method. An illuminating structure is formed by diffractive optical elements. Inspected objects of the system are smooth-bore weapon, fuel pellets, fuel rods, spacer grids, ceramic ring insulators. Diffractive optical elements used in the performance are focusators into rings or segments of a straight line. A focusator into arc is made for cylinder objects inspection. In this case, a focal plane aligns with a plane of the cylinder generatrix.
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