HIGH PERFORMANCE MULTI SPECTRAL COATED FREEFORM OPTICAL ELEMENTS
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Jul 27, 2022
filing date -
Jul 28, 2021
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Abstract
A glass part to be made into a two-part freeform optical element is received. The glass part includes a precision freeform surface in a first specific spatial shape and a to-be-corrected surface. A non-glass material layer is added onto the to-be-corrected surface of the glass part to produce an accurate second surface in a second specific spatial shape. An optical coating is applied to the precision freeform surface of the glass part in the two-part freeform optical element.
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