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US 2016/0238772 A1Published application
Waveguide grating device
AssigneesDigiLens Inc., Rockwell Collins, Inc.
InventorsJonathan David WALDERN, Alastair John GRANT, Milan Momcilo POPOVICH, James H. STANLEY, Robert D. BROWN
Life of this patent
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Abstract
An optical waveguide comprises at least two TIR surface and contains a grating. Input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions at the grating. Each diffraction directs light into a unique TIR angular range along a second propagation direction.
Claims30
An optical waveguide comprising:
- at least two TIR surfaces and containing a grating, wherein input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions, wherein each ray from said first angular range and its corresponding diffracted ray lie on the diffraction cone of said grating, wherein each diffraction provides a unique TIR angular range along a second propagation direction.
Dependencies are inferred from the claim text.