Benzinga | Aug 10, 2021 12:34PM EDT

Vuzix Granted U.S. Patent Titled 'Image light guide with expanded light distribution overlapping gratings'

https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=4369&f=G&l=50&d=PTXT&p=88&S1=20210810&OS=20210810&RS=20210810