Waveguides for AR/MR
For several years, NIL Technology has delivered masters for augmented and mixed reality (AR/MR) to some of the biggest players in the industry.
Surface relief waveguides
Surface relief waveguides for AR/MR are see-through waveguides, typically on high-refractive index glass. The waveguide includes surface relief gratings for in-coupling of the image signal from a projector, expansion in x and y, and out-coupling.
Typically, blazed- and slanted gratings are used for the coupling of light into the waveguide, and binary and slanted gratings are used for the pupil expansion and the out-coupling of the light.
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