Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 16, 2021
Patent Application Number
16854702
Date Filed
April 21, 2020
Patent Citations Received
Patent Primary Examiner
Patent abstract
A light projection apparatus is provided comprising: a source of light; a switchable grating on a first substrate; and a diffractive optical element. Light is diffracted at least once by the switchable grating and is diffracted at least once by the DOE.
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