Device for imaging in the viewing plane a side of a test object differing from the viewing plane

摘要

Device for imaging in the viewing plane of a test object, e.g. a coin, a side (2) of the test object (3) differing from the viewing plane and located at an angle. The test object (3) is surrounded on all sides by an optical, prismatic element (6) which is made from glass or plastic and respectively has an outer and an inner inclined reflection surface (7, 8) whose angles ( alpha , beta ) of inclination are coordinated with one another in such a way that the image (10) of a side (2) of the test object which is at an angle to the viewing plane, e.g. a coin rim, surrounds the test object (3) in the viewing plane (11) after double total reflection. IMAGE