Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 18, 2022
Patent Application Number
16867574
Date Filed
May 6, 2020
Patent Citations Received
Patent Primary Examiner
A light projector including a light source, a beam multiplication film, and a tunable wave plate is provided. The light source is configured to emit a light beam. The beam multiplication film is disposed on a transmission path of the light beam and made of anisotropic refractive index material, wherein a plurality of separated light beams are produced after the light beam from the light source passes through the beam multiplication film. The tunable wave plate is disposed on transmission paths of the separated light beams from the beam multiplication film and configured to modulate the separated light beams.
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