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Proceedings Paper

Innovative systematic design approach for lightguide devices for XR applications (Conference Presentation)
Author(s): Christian Hellmann; Stefan Steiner; Roberto Knoth; Site Zhang; Frank Wyrowski

Paper Abstract

For applications in the field of XR, devices based on light guiding are one beneficial approach to combine the virtual image with the light impinging from the real-world environment. Usually, lightguide devices like AR glasses are quite complex, due to the required management of a large field of view and light of different wavelengths. Due to this complexity, numerous parameters must be considered in order to design a functional device which provides a sufficient image quality and optical performance. In the talk we are going to present a systematic approach to design lightguide devices including different types of grating structures used for in- and out-coupling of the light. We will show, that this systematic approach, which is enabled by the fast physical optics technology of VirtualLab Fusion software, allows to combine the benefits of functional and parametric design and optimization strategies. Typical design tasks are discussed in detail, e.g. the trade-off between uniformity and system efficiency. In the talk, the design approach and the capabilities of the Field Tracing technology of VirtualLab Fusion are demonstrated based on various examples.

Paper Details

Date Published: 27 July 2019
Proc. SPIE 11062, Digital Optical Technologies 2019, 110620G (27 July 2019); doi: 10.1117/12.2527878
Show Author Affiliations
Christian Hellmann, Wyrowski Photonics UG (Germany)
Stefan Steiner, LightTrans International UG (Germany)
Roberto Knoth, LightTrans International UG (Germany)
Site Zhang, LightTrans International UG (Germany)
Frank Wyrowski, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 11062:
Digital Optical Technologies 2019
Bernard C. Kress; Peter Schelkens, Editor(s)

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