Complex Lightguide System with a 2D Eye Pupil Expansion and Human Eye Model
Abstract
In order to push the limits in the field of augmented and mixed reality (AR/MR), the need for more complex lightguide systems is constantly increasing. VirtualLab Fusion provides a set of tools which enable the design and modeling of such complex systems. To demonstrate the capabilities of VirtualLab Fusion, an exemplary lightguide system with a 2D exit pupil expander in combination with a slanted grating in the outcoupler is presented. In addition, the point spread function (PSF) and modulation transfer function (MTF) are evaluated by applying a model of the human eye. Finally, an assessment of the lateral uniformity in the eyebox is demonstrated.
VirtualLab Fusion Configuration
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VirtualLab Fusion
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AR VR MR Package
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Grating Package
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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.
Tutorial
How to Set Up a Lightguide with Real Grating Structures
You learn how to import a previously designed real grating structure into the lightguide component and explains the role and handling of lookup tables.
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
Flexible Region Definition
This tutorial walks you through the flexible configuration of regions in VirtualLab Fusion, which allow the user to define variously shapes...
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.