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US 2026/0287335 A1Published application
Generating and projecting a pseudo-random optical pattern of dots
AssigneeNIL Technology ApS
InventorsOlivier Francois, Martin Balimann, Moritz Schmidlin
Life of this patent
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Abstract
Techniques for generating and projecting a pseudo-random optical pattern of dots that can be repeated across an illumination space in the far field are disclosed. In some implementations, the pseudo-random pattern of dots can be achieved using a regular array of light sources.
Claims16
An apparatus comprising:
- an array of light sources;
- a first optical fanout structure;
- and
- an optical collimator disposed to intersect light emitted by the light sources, wherein output of the collimator is provided to the first optical fanout structure, and
- wherein the first optical fanout structure is operable to split each light incident beam into multiple diffractive orders, wherein only a subset of diffractive orders are activated so as to produce a pseudo-random pattern of dots.
2 more elements
An apparatus comprising:
- an array of light sources;
- a first optical fanout structure;
- and
- an optical collimator disposed to intersect light emitted by the light sources, wherein output of the collimator is provided to the first optical fanout structure, and
- wherein the first optical fanout structure includes an array of fanout elements having respective unit cell sizes that differ from one another so as to generate position offsets in one or more higher diffractive orders.
2 more elements
An apparatus comprising:
- an array of light sources;
- a substrate having an arrayed diffractive surface operable to introduce an offset for light beams emitted by at least some of the light sources;
- an optical collimator disposed to intersect light beams that have passed through the substrate;
- and
- an optical fanout structure operable to receive light beams that have passed through the collimator and to split each of such light beams into multiple respective diffractive orders.
2 more elements
Dependencies are inferred from the claim text.