GLARE-FREE LIGHTING DEVICE FOR THE INSPECTION OF OBJECTS BY MEANS OF MACHINE VISION

摘要

The invention relates to a glare-free lighting device for the inspection of parts which comprises a torus-shaped light diffusing surface (2d, 3d) corresponding to the inner surface of the casing (1); a casing (3) with a front central opening (4) and a rear central opening (5), concentric with the diffusing surface (2d, 3d); front light sources (19, 20) adjacent to the front central opening (4) and rear light sources (21, 22) adjacent to the rear central opening (5), the front light sources (19,20) being spaced apart from the rear light sources (20, 21) by a lighting segment (B-B) in which an object to be inspected (6) is illuminated, the light sources (19, 20, 21, 22) being arranged concentrically with the diffusing surface (2d, 3d) of the diffusing surface (2d, 3d) and oriented to illuminate the diffusing surface (2d, 2d).