Diffractive optic for holographic projection
AssigneeUniversity of Utah Research Foundation
InventorRajesh Menon
Life of this patent
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Abstract
Technology is described for methods and systems for a diffractive optic device (525) for holographic projection. The diffractive optic device can include a lens (535) configured to convey a hologram. The lens (535) further comprises a patterned material (510) formed with an array of cells having a non-planar arrangement of cell heights extending from a surface of the patterned material. The lens further optionally comprises a filling material (530) to fill gaps on both surfaces of the patterned material.
Claims26
A diffractive optic device, comprising:
- a lens configured to convey a hologram, comprising:
- a patterned material formed with an array of cells having a non-planar arrangement of cell heights extending from a surface of the patterned material, wherein the non-planar arrangement produces the hologram in the near field or quasi-near field;
- and
- an optional filling material to fill gaps on at least a portion of the surface of the patterned material.
A method of manufacturing a lens for a diffractive optic device, comprising:
- forming a patterned material on a surface of a substrate with an array of cells having a non-planar arrangement of cell heights extending from the surface of the substrate such that incoming light reflected from or transmitted through patterned material forms a hologram, wherein the non-planar arrangement produces the hologram in the near field or quasi-near field;
- and
- optionally depositing a filling material to fill gaps formed in the pattern material.
Dependencies are inferred from the claim text.