Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Austin Lane0
Andrew John Ouderkirk0
Christopher Yuan Ting Liao0
Jack Lindsay0
Katherine Marie Smyth0
Kenneth Diest0
Renate Eva Klementine Landig0
Tanya Malhotra0
...
Date of Patent
June 1, 2021
Patent Application Number
16263829
Date Filed
January 31, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
A display device includes a scanned projector for projecting a beam of light, and a diffraction grating for dispersing the light at a plurality of angles into a waveguide, wherein at least a portion of the diffraction grating includes a nanovoided polymer. Manipulation of the nanovoid topology, such as through capacitive actuation, can be used to reversibly control the effective refractive index of the nanovoided polymer and hence the grating efficiency. The switchable grating can be used to control the amount of diffraction of an incident beam of light through the grating thereby decreasing optical loss. Various other methods, systems, apparatuses, and materials are also disclosed.
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