evaporator tube with a special nozzle bar this nozzle bar which comprises several linearly arranged openings projects with respect to the evaporator tube in the direction toward the substrate to be coated application_number US 38401606 A description fig1 depicts a perspective overall view of a vapor deposition device 1 comprising an upper part 2 and a lower part 3 both parts 2 3 are held together by an upper and a lower connection clamp 4 5 as well as by a bolt 6 several such connection clamps and bolts may be provided over the circumference of the vapor deposition device 1 on the top side 7 of the upper part 2 an inlet tube 8 is indicated by 9 and 10 are denoted cooling means ports which are also located on the top side of the upper part 2 further cooling means ports 11 12 are located on the lower part 3 the vapor deposition device 1 stands perpendicularly i e parallel to the direction of the gravitational force of the earth a substrate 13 to be coated for example a glass plate coated with oled is guided past the vapor deposition device 1 and specifically horizontally as indicated by arrow 14 the oled may be disposed on an ito layer which.