High refractive index glass wafers for AR waveguide technology: glass wafers in larger diameter to enable cost efficiency for consumer ready devices (Conference Presentation)

Berthold Lange

doi:10.1117/12.2555739

30 March 2020 High refractive index glass wafers for AR waveguide technology: glass wafers in larger diameter to enable cost efficiency for consumer ready devices (Conference Presentation)

Berthold Lange

Author Affiliations +

Proceedings Volume 11350, Digital Optics for Immersive Displays II; 1135007 (2020) https://doi.org/10.1117/12.2555739
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

In the variety of optical solutions for Head Mounted Devices, the Waveguide Technology is widely believed to constitute one of the most promising approaches to realize affordable Augmented Reality (AR) / Mixed Reality (MR) experience while enabling full immersive user impression combined with smallest form factor and uncompromised image quality. In the race to highest Field-of-View (FoV) and best image quality the optical waveguide, made from specialty grade high index glass wafers, is the core component. The material and geometry characteristics of such wafers are directly determining image properties, such as maximum Field-of-View, contrast, brightness, distortion of the image, guided to the user’s eye. We report advances in making glass wafers larger in diameter, to enable cost efficiency of subsequent processes. We provide insight into SCHOTT’s material roadmap for combiner optics in Augmented Reality devices including high refractive index. Finally, we present results of collaborative research between glass, resin and equipment companies, targeting to provide mass producible solutions allowing optical component manufacturers to accelerate the merchantability of consumer ready devices.

Conference Presentation

Citation Download Citation

Berthold Lange "High refractive index glass wafers for AR waveguide technology: glass wafers in larger diameter to enable cost efficiency for consumer ready devices (Conference Presentation)", Proc. SPIE 11350, Digital Optics for Immersive Displays II, 1135007 (30 March 2020); https://doi.org/10.1117/12.2555739

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