Light distribution on the printing plane and its influence on screen elements transfer

Graphic technology demands monitoring of each process phase with the aim of obtaining qualitative and satisfactory finished product. The light distribution during copying of the plane on the ptinting plate was observed. Changes in the size of the printing elements are possible. The fields defined on the film, on printing plate and on prints were measured. The regular distribution of light on the printing plate is nessesary. because of the uncorect copying process the differences are possible as wellas the deformed perceptions of colours shift of the printed samples.