IMAGE LIGHT GUIDE SYSTEM WITH CROSSED IN-COUPLING OPTICS

Abstract: an image light guide for conveying a virtual image including a first surface and a parallel second surface, an in-coupling diffractive optic arranged along the first surface and/or the second surface, wherein the in-coupling diffractive comprises a first zone having a first set of diffractive features and a second zone having a second of diffractive features, and an out-coupling diffractive optic arranged along the first surface and/or the second surface, wherein the out-coupling diffractive optic comprises a first area having two or more zones and a second area having two or more zones. wherein an imaginary axis is oriented along a centerline of the out-coupling diffractive optic, image-bearing light in-coupled into the waveguide by the first zone of the in-coupling diffractive optic is operable to propagate across the imaginary axis to the first area of the out-coupling diffractive optic, and image-bearing light in-coupled into the waveguide by the second zone of the in-coupling diffractive optic is operable to propagate across the imaginary axis to the second area of the out-coupling diffractive optic.

Inventor(s): Robert J. Schultz, Marek W. Kowarz

CPC Classification: G02B27/0172 (Head-up displays)

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