The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2018
Filed:
Feb. 17, 2016
Thalmic Labs Inc., Kitchener, CA;
Stefan Alexander, Elmira, CA;
Matthew Bailey, Kitchener, CA;
Vance R. Morrison, Kitchener, CA;
Lloyd Frederick Holland, Kitchener, CA;
THALMIC LABS INC., Kitchener, CA;
Abstract
Systems, devices, and methods for eyebox expansion by exit pupil replication in scanning laser-based wearable heads-up displays ('WHUDs') are described. The WHUDs described herein each include a scanning laser projector ('SLP'), a holographic combiner, and an optical replicator positioned in the optical path therebetween. For each light signal generated by the SLP, the optical replicator receives the light signal and redirects each one of N>1 instances of the light signal towards the holographic combiner effectively from a respective one of N spatially-separated virtual positions for the SLP. The holographic combiner converges each one of the N instances of the light signal to a respective one of N spatially-separated exit pupils at the eye of the user. In this way, multiple instances of the exit pupil are distributed over the area of the eye and the eyebox of the WHUD is expanded.