| http://www.w3.org/ns/prov#value | - The cured cholesteric layer has preferably a mean dry-layer thickness of from 0.5 to 20 ??m, for example from 1 to 10 ??m, in particular from 1 to 4.5 ??m, particularly preferably from 1 to 3 ??m, or from 2 to 4 ??M. The cholesteric layers produced in accordance with the invention have preferably a mean layer thickness variation of ???0.2 ??m or less, which results in high color constancy of the c
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