Modeling of Lightguide Devices with Complex Expansion Regions in VirtualLab Fusion
In the past weeks we have shown the powerful capabilities of the fast physical optics modeling and design software VirtualLab Fusion for the design and simulation of lightguide systems. We now culminate this campaign with a demonstration of the application of these technologies to simulate examples from literature with complex eye-pupil-expander (EPE) regions.
See below two examples, one containing a setup with a “butterfly" EPE, that splits the field of view (FOV), and another one illustrating a 2D-periodic diamond-shaped grating structures in the combined expander/outcoupler region.
Lightguide with Butterfly EPE
This use case shows a lightguide system with a so-called “butterfly pupil expansion”, based on patent US9791703B1 by Microsoft.
In this picture you see a model of a lightguide / waveguide system that uses 2D-periodic grating structures (diamond-shaped), according to the approach from Patent WO2018/178626 (by Wave Optics LTD).
In this use case we model a lightguide system that uses 2D-periodic grating structures (diamond-shaped), according to the approach from Patent WO2018/178626 by Wave Optics LTD.
