| http://www.w3.org/ns/prov#value | - This is of advantage especially for the subsequent finishing steps, since layerdetachments and similar defects are drastically reduced, for example, during an anti-reflection coating, due to the lesser back diffusion under vacuum.Overall, on the basis of the inventive photochromic 2H-naphtho[1,2-b]pyrans, any dyes, which are compatible from a chemical and color point of view, can be applied on or
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