DEVICE FOR CONTROLLING INTERNAL SURFACE OF BODIES Russian patent published in 2006 - IPC G01N21/00 

FIELD: technology for non-destructive control of internal surface of bodies by visual method.

SUBSTANCE: device has hollow cylinder-shaped body and, serially positioned inside it along its longitudinal axis, lighting system with electric lamp and toroidal lens, observation system, containing circular observation mirror, objective, light guide, scale mesh and ocular. Device additionally has second objective, positioned behind first ocular on its optical axis, television CCD-matrix, mounted in focal plane of second objective, video monitor, on screen of which images of light sections of object are visualized at output end of light guide, second replaceable ocular, positioned, during projection of first ocular from beams route, on optical axis parallel to optical axis of first ocular and distanced from it for distance equal to half diameter of image of light section of object at output end of light guide, and having possibility of rotation relatively to optical axis of first ocular.

EFFECT: possible observation of enlarged image of defects.

3 dwg