Paper
25 April 2008 Diffractive exit-pupil expander with a large field of view
Author Affiliations +
Abstract
A concept of asymmetric exit-pupil expansion for head-worn virtual displays is introduced. Expression for the achievable field of view (FOV) of a stack of asymmetric pupil expanders is derived. Comparison with the symmetric case indicates a possibility for doubling the horizontal FOV for given material parameters and spectral bandwidth. Using the parameter values of readily available plastics, the horizontal field of view approaching the viewing conditions of typical desktop monitors should be possible. Moreover, improvement of the illumination uniformity can be achieved through optimized positioning of the out-coupling diffraction gratings.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pasi Saarikko "Diffractive exit-pupil expander with a large field of view", Proc. SPIE 7001, Photonics in Multimedia II, 700105 (25 April 2008); https://doi.org/10.1117/12.780514
Lens.org Logo
CITATIONS
Cited by 9 scholarly publications and 12 patents.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Diffraction gratings

Refractive index

Waveguides

Diffraction

Eye

Manufacturing

Visible radiation

RELATED CONTENT

The ideal imaging AR waveguide
Proceedings of SPIE (June 26 2017)
High efficiency diffractive incouplers for light guides
Proceedings of SPIE (February 12 2008)
Near to eye display based on retinal scanning and a...
Proceedings of SPIE (May 05 2010)

Back to Top