MANUFACTURING AN OPTICAL ELEMENT
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Aug 25, 2021
filing date -
Aug 25, 2021
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Abstract
A method of manufacturing an optical element, the method comprising: providing a substrate; providing a tool comprising, on a first side, a section defining a surface structure of the optical element; aligning the tool and the substrate with respect to each other and bringing the tool and a first side of the substrate together, with material between the tool and the substrate; positioning a transparent masking structure adjacent to the substrate onto which the material has adhered, the masking structure comprising a masking layer; emitting light through the masking structure to be incident on a portion of the material to cure said potion of the material, wherein the masking layer prevents light from being incident on a remaining portion of the material such that the remaining portion of the material is uncured; and removing the uncured remaining portion of the material.
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