Presentation + Paper
14 March 2023 Evaluation of a pixelated holographic display concept for a near-eye display: recent results and technological developments
Author Affiliations +
Proceedings Volume 12443, Advances in Display Technologies XIII; 1244308 (2023) https://doi.org/10.1117/12.2650111
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
The development of an ideal optical system to support Mixed Reality and Augmented Reality (AR) applications has raised a lot of interest in the scientific community in the last decades. The perfect device remains an inaccessible target and researchers have to focus on the optimization of some specific behaviors. Several years ago, we introduced a disruptive display concept to push the device integration to the limit, with the suppression of the optical system. This allows the imaging process to be considered in a different way with a specific monitoring of the field of view. With this ‘smart glass’ concept, the glass is the display, and the image is formed directly onto the retina with a combination of refractive and diffractive effects. This conceptual target allowed us to define a technological roadmap to support our development. Technologies involved in this concept concern principally the field of Photonic Integrated Circuits in the visible range, digital/analogic holography and Liquid Crystal devices. We will present the current state of our research with a particular focus on the holographic display element. Recent results related to analogic pixelated hologram recording validate and question both our technological and conceptual approach. We will show images formed by sparse holographic pixel distributions with controlled angular characteristics that demonstrate the mix of refractive and diffractive effects. The transmission behavior of this holographic device will also be analyzed.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christophe Martinez, Matthias Colard, Daivid Fowler, Yann Lee, Sylvia Meunier-Della-Gatta, Kyllian Millard, Fabian Rainouard, and Salaheddine Toubi "Evaluation of a pixelated holographic display concept for a near-eye display: recent results and technological developments", Proc. SPIE 12443, Advances in Display Technologies XIII, 1244308 (14 March 2023); https://doi.org/10.1117/12.2650111
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KEYWORDS
Holograms

Holographic displays

Holography

Photonic integrated circuits

Transparency

Near eye displays

Image processing

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