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US 2020/0089319 A1Published application
Holographic Waveguide Optical Tracker
AssigneeDigiLens Inc.
InventorsMilan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant, Kimberly Sun Lokovic
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Abstract
There is provided an object tracker comprising: a first waveguide; a source of illumination light; a detector optically coupled to said waveguide; and at least one grating lamina formed within said waveguide. Illumination light propagating along a first optical path from said source to an object in relative motion to the object tracker. Image light reflected from at least one surface of an object is deflected by said grating lamina into a second optical path towards said detector.
Claims20
An object tracker for tracking at object comprising:
- a first waveguide;
- a source of light for illuminating said object having at least one surface;
- a detector optically coupled to said first waveguide;
- and
- a first grating formed within said first waveguide,
- wherein image light reflected from said at least one surface of said object is deflected by said first grating into a TIR path towards said detector,
- wherein said first grating comprises a plurality of grating elements, each having a grating vector configured to provide a unique perspective view of said object.
4 more elements
Dependencies are inferred from the claim text.