Construction of a Light Guide

Abstract

New applications in the area of augmented and mixed reality (AR & MR) have drawn increased attention to light-guide systems with grating regions for in- and outcoupling, and pupil-expansion purposes.

VirtualLab Fusion provides several powerful tools for the simulation and design of such systems, among them a light-guide component with flexible grating region configuration. The simulation then benefits from the “connecting field solvers” approach implemented in VirtualLab Fusion, as well as its effective non-sequential modeling technology. In this use case we present how to set up and configure the Light Guide component.

VirtualLab Fusion Configuration

  • VirtualLab Fusion VirtualLab Fusion
  • AR VR MR Package AR VR MR Package
  • Grating Package Grating Package

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Use Case

Modeling of a HoloLens 1 - Type Layout with Light Guide Component

This use case demonstrates the modeling of a device of a simple “HoloLens 1”-type layout with a Light Guide component capable of guiding light with a 32° × 18° FoV.

Tutorial

Channel Resolution Accuracy Setting of Non-Sequential Field Tracing

Non-sequential field tracing is done with two steps in VirtualLab Fusion. Firstly, according to an adjustable accuracy factor, the light path through the system is detected. This light path finding can be controlled by the corresponding accuracy factor.

Tutorial

Channel Settings for Non-Sequential Tracing

With the flexible channel configuration in VirtualLab Fusion, one can easily control the response of any surface and/or region, to realize the desired model