LightTrans

Simulation of Lightguide with 1D-1D Pupil Expander and Real Gratings

With the development of new applications in the area of augmented & mixed reality (AR & MR) the use of light guide systems has seen growing interest. In order to guide the light from the source to the intended eyebox a configuration with a separated 1D-1D pupil expansion in combination with different kinds of surface relief gratings are used. The design of these gratings in regard to efficiency and uniformity is therefore one of the major challenges in the design process of AR/MR devices. In this use case we demonstrate how to include real grating structures in VirtualLab Fusion, from the initial grating design to the application on the lightguide surface.

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