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US 12,715,188 B2Granted
High performance multi spectral coated freeform optical elements
AssigneeDolby Laboratories Licensing Corporation
InventorTitus Marc DeVine
Life of this patent
Estimating the term…
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.
Claims15
A method for producing freeform optical elements, comprising:
- receiving a glass part to be made into a two-part freeform optical element, wherein the glass part includes a precision freeform surface in a first specific spatial shape and a to-be-corrected surface;
- adding a non-glass material layer onto the to-be-corrected surface of the glass part to produce an accurate second surface in a second specific spatial shape that is different from the initial surface shape;
- applying an optical coating to the precision freeform surface of the glass part in the two-part freeform optical element.
Dependencies are inferred from the claim text.