Systems, devices, and methods for eyebox expansion in wearable heads-up display

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United States of America

PATENT NO 11307413
APP PUB NO 20190271845A1
SERIAL NO

16290519

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Abstract

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Systems, devices, and methods for eyebox expansion in wearable heads-up display are described. The eyebox of a wearable heads-up display may be expanded by increasing the bandwidth of the hologram comprising the holographic combiner of the wearable heads-up display. The bandwidth of the hologram may be increased by physically coupling a donor film to a hologram film, causing donor material to diffuse into the hologram film and then fixing the donor material in place. Diffusion of donor material into the hologram film causes a change in the slant angle and/or the spacing of at least a portion of the hologram fringes of the hologram film, broadening the bandwidth of the hologram.

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Patent Owner(s)

  • GOOGLE LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, I-Hsiang Albert Toronto, CA 2 3
Cormier, John Waterloo, CA 13 141
Lyda, Sylwia Agnieszka Waterloo, CA 2 3
Mokhtarpour, Laleh Kitchener, CA 2 3

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