Process for producing antireflection coatings
AssigneeUniversität Konstanz
InventorsUllrich Steiner, Stefan Walheim, Erik Schäffer, Stefan Eggert, Jürgen Mlynek
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Abstract
The invention relates to a method for producing an element comprising a substrate and at least one anti-reflection coating with pores. The dimensions of the anti-reflection coating are below the wavelength of visible light or the neighboring spectral ranges. The invention also relates to an element produced according to this method with at least one anti-reflection coating, for example optical lenses, mirrors or other optical components. The optical anti-reflection coating of these elements is essentially improved.
Claims12
Process for producing an element comprising a substrate and at least one antireflection coating having pores, the dimensions of the antireflection coating being below the wavelength of visible light or neighboring spectral regions, comprising the steps
- preparing said substrate,
- applying a solution of at least two mutually incompatible polymers which are dissolved in a common solvent in such a manner that a common intermixed phase is produced, to said substrate, phase separation on its surface producing a coating having essentially laterally alternating polymer phases, and
- exposing this coating to another solvent so that at least one polymer remains undissolved to obtain said antireflection coating having pores.
Dependencies are inferred from the claim text.