Printing machine, has laminar arranged unit provided at and/or in viewing glass, where transmission of visible glass for electromagnetic radiation is modified in visible range with assistance of laminar arranged unit

摘要

The machine has a viewing glass (1) provided for protection from electromagnetic radiation. A laminar arranged unit (2) is provided at and/or in the viewing glass, where the transmission of the visible glass for electromagnetic radiation is modified in a visible range with the assistance of the laminar arranged unit. The laminar arranged unit is electrically connected with a steering or an control circuit. The control circuit is controlled by an optical sensor, which measures radiation intensity.