Facsimile color bleaching copying method

DETAILED DESCRIPTION In order to make coloured copies of pictures, drawings, etc.
, a method is provided, by which a pattern is scanned point-by-point and the colour intensities of the scanned points are converted into control signals.
The control signals are led to a light source, the intensity of its light beam being influenced by the intensity of the control signal.
The scanner and the light source are working synchronously.
If the control signals are led to a light-source, e.
g.
a laser with a deflectable light beam, a special paper with colour points or triplets is bleached in accordance with the original colours of the pattern.
The advantage of the invention is that chemical substances can be used, which are unfadable under normal day light and which are bleaching under special electromagnetic wavelengths or intensities.
Since the bleaching process is an event, which happens more or less to all coloured substances, one has only to select those substances, which don't bleach under normal conditions, but under artificial lighting.
The invention possesses other objects and features of advantage, some of which will be set forth in the following description of a form of the invention which is illustrated in the drawings accompanying and forming part of this specification.