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AssigneeMeta Platforms Technologies, LLC
InventorsSihui He, Jacques Gollier, Maxwell Parsons, Babak Amirsolaimani, Wanli Chi, Daniel Guenther Grief, Renate Eva Klementine Landig, Xiayu Feng, Zhimin Shi, Nicholas John Diorio, Yang Yang, Giuseppe Calafiore, Fenglin Peng, Tanya Malhotra, Andrew John Ouderkirk
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A directional illuminator for a display apparatus includes a switchable diffuser for tuning a divergence of a light beam illuminating a display panel of the display apparatus. The tunable divergence of the illuminating light beam translates into a tunable exit pupil size at the eyebox of the display apparatus, which may be matched to a pupil size of a user's eye, thus providing a configurable illumination of the eye pupil. A tiltable reflector in an optical path of the illuminating light beam may be used to shift the location of the exit pupil at the eyebox of the display apparatus.
A method for displaying an image, the method comprising:
A directional illuminator with a controllable divergence of an output light beam, the directional illuminator comprising:
Dependencies are inferred from the claim text.