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Pattern generation

Near-eye displays

Virtual and Mixed Reality

Waveguide Head-Up Displays

Virtual and Mixed Reality
Time: 2018-05-28 20:57Source: infocrops.comWriter: infocrops
VirtualLab Fusion provides non-sequential modeling of multichannel waveguide imaging systems including wavefront error, energy flux and PSF/MTF evaluation as required for VR, AR and MR
 
In modern display technology, the imaging channel or, in other words, the lightpath from the image panel to the human eye, must be compact while also introducing a lateral offset between panel and eye. In addition, we typically need multiplexing into many imaging channels to provide the image to the eye at different positions. To this end waveguides with gratings are of increasing interest. VirtualLab Fusion enables non-sequential ray and field tracing modeling and design of such devices, including electromagnetic inclusion of grating effects, automatic detection of all relevant lightpaths through the waveguide, and even the calculation of the PSF/MTF for the multi-channel input for any eye position, including the consideration of the partial coherence of the channels.
 
Benefits
 
Arbitrary definition of grating regions on waveguide surfaces. 
 
Easy switching between ray tracing and fast physical optics engines. 
 
Advanced PSF/MTF calculation for arbitrarily shaped and fully or partially illuminated apertures, with consideration of wavefront aberrations. 
 
Non-sequential ray tracing informed by a physical optics-based energy concept. 
 
Non-sequential field tracing (physical optics simulation) which includes vectorial, polarization and coherence effects. 
 
Rigorous calculation of diffraction-order efficiencies for grating regions. 
 
Modeling and optimization of high-NA diffractive optical elements (beam splitters) for pattern generation. 
 
Simulation and analysis of high-NA freeform surfaces. 
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