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Proceedings Paper

Varifocal technologies providing prescription and VAC mitigation in HMDs using Alvarez lenses
Author(s): R. E. Stevens; D. P. Rhodes; A. Hasnain; P.-Y. Laffont
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Paper Abstract

We present a varifocal system for generating consistent accommodation cues and providing prescription correction in Virtual Reality Head-Mounted Displays (VR HMDs). The proposed approach mitigates the Vergence-Accommodation Conflict (VAC), a fundamental cause of discomfort in today’s VR, and eliminates the need for corrective eyeglasses inside head-mounted displays. We augment traditional objective lenses with a focus-adjustable optical system based on Alvarez lenses, and demonstrate a proof-of-concept integration into a commercial mobile VR headset. This paves the way to lighter, thinner, and more comfortable headsets, enabling the prolonged use of VR with minimal visual discomfort.

Paper Details

Date Published: 21 May 2018
PDF: 17 pages
Proc. SPIE 10676, Digital Optics for Immersive Displays, 106760J (21 May 2018); doi: 10.1117/12.2318397
Show Author Affiliations
R. E. Stevens, Adlens Ltd. (United Kingdom)
D. P. Rhodes, Adlens Ltd. (United Kingdom)
A. Hasnain, Lemnis Technologies (Singapore)
P.-Y. Laffont, Lemnis Technologies (Singapore)


Published in SPIE Proceedings Vol. 10676:
Digital Optics for Immersive Displays
Bernard C. Kress; Wolfgang Osten; Hagen Stolle, Editor(s)

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