Method for production of a photo-active surface layer where heat-treatment is in short busts so that sub-surface layers are unaffected by the heat, thus broadening the range of materials the surface layers can be used with

摘要

Method in which photoactive modification of an object surface layer is effected during or before heat treatment of the surface layer. The heat treatment energy is supplied in bursts of over 1000 W per cm2, with the bursts of such short duration that only the surface layer is heated sufficiently to allow the required photo-active modification to take place. The object on which the surface layer is deposited unaffected. An Independent claim is made for a device for producing a photoactive layer on an object.