CONTROL DEVICE WITH INVERSE FILM LENS Russian patent published in 2018 - IPC G02B5/02 

FIELD: optics.

SUBSTANCE: invention relates to devices for monitoring capacitance structures through transmitted light. Device for monitoring and recording capacitance structures, with an illuminating device disposed on one side of the container conveying section for visually inspecting a portion of the container, and arranged on the second side of the transport portion by an optical device for recording an image of a portion of the container taken in the transmitted light. And in illuminating device there is a lens with a layer of film guiding light beams in at least one direction in space not vertical to the transport section, lens directs the light rays so that they exit in two different directions in space from the surface of the lens.

EFFECT: technical result consists in improving the accuracy of registering the structures of the container during its movement along the trajectory of transportation.

5 cl, 4 dwg