Optical element and method of making an optical element
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United States of America Patent
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Jun 30, 2020
Grant Date -
Dec 7, 2017
app pub date -
Jun 5, 2017
filing date -
Jun 3, 2016
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Abstract
A method for producing an optical element having a main body with a first side surface, which has a first optical coating, and at least one second side surface, which is not plane-parallel to the first side surface and has a second optical coating, is proposed. The method includes the steps of: determining the stress induced in the optical element by the first optical coating of the first side surface; determining a counter-stress, so that the resultant overall stress induced in the optical element is as small as possible; determining the second optical coating while taking into account the determined counter-stress and the optical parameters of the second optical coating; applying the first optical coating on the first side surface; and, applying the second optical coating on the at least one second side surface.
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