Footprint Analysis of Lightguides for AR/MR Applications

Abstract

A major part of the design process of any kind of lightguide system for augmented or mixed reality applications is the configuration of the grating regions for the incoupler, outcoupler and eye pupil expander. For this purpose, a fast and simple overview of the light propagation and occurring grating interactions is very helpful: the analysis of the footprints.

With the Footprint and Grating Analysis Tool VirtualLab provides a powerful tool to support the optical engineer during this process. In this document, the options and capabilities of this versatile tool are discussed.

VirtualLab Fusion Configuration

  • VirtualLab Fusion VirtualLab Fusion

Are you interested in further reading?

Tutorial

Grating Analysis and Smoothly Modulated Grating Parameters on Lightguides

In this tutorial, smoothly varied grating parameters are introduced to lightguides for AR/MR applications, by using Grating Analysis Tool.

Tutorial

Construction of a Light Guide

Light guides with coupling gratings can be set up in VirtualLab Fusion using the Light Guide component and its flexible region definition.

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

Light Guide Layout Design Tool

The Layout Design tool allows to design a custom “Hololens 1”-like augmented or mixed reality system according to the desired specifications.

Tutorial

k-Domain Layout Visualization

We explain the physical concepts employed in the k-Layout Visualization tool and demonstrates its usage.

Use Case

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

The investigation of the influence of real gratings on the efficiency and uniformity of a lightguide are of essential importance. This use case shows an example with a slanted grating as incoupler and binary surface relief grating as EPE and outcoupler.