Poster + Paper
7 March 2022 Phase-only modulation with economic and compact vertical aligned liquid crystal devices
Author Affiliations +
Conference Poster
Abstract
Spatial Light Modulators (SLMs) are widely used in several fields of optics such as adaptive optics or holographic displays. SLMs based on Liquid Crystal (LC) devices allow a dynamic and easy representation of two-dimensional phase maps. However, these devices have two main drawbacks, their elevated cost and large dimensions, which prevents them to be used in applications where compactness and low prices are a must. Here we present a more affordable and compact approach based on vertical aligned LC devices, with characteristics of phase modulation very similar to the widely used parallel aligned LC devices. We study the maximal Field of View for visual correction in a see-through system, where the displayed phase map is used for the correction of visual disorders, from refractive errors, to high order aberrations. To conclude we discuss the potential of using this SLM technology and approach as a key component in smart glasses, paving the way for the development of economic, compact and reliable smart glasses for vision correction, among other applications.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alba M. Paniagua-Diaz, Augusto Arias, Pedro M Prieto, Javier Roca, and Pablo Artal "Phase-only modulation with economic and compact vertical aligned liquid crystal devices", Proc. SPIE 11931, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) III, 119310D (7 March 2022); https://doi.org/10.1117/12.2614667
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KEYWORDS
Phase modulation

Modulation

Liquid crystals

Spatial light modulators

Molecules

Modulators

Point spread functions

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