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US Patent 11668989 Diffractive devices based on cholesteric liquid crystal

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
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Current Assignee
Magic Leap
Magic Leap
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Date Filed
February 16, 2022
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Date of Patent
June 6, 2023
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Patent Applicant
Magic Leap
Magic Leap
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Patent Application Number
17673587
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Patent Citations
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US Patent 7573640 Multi-plane optical apparatus
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US Patent 7692759 Polarization gratings in mesogenic films
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US Patent 7705943 LCD device having vertically aligned liquid crystal layer between first and second substrates in which the first substrate has a first opening and a second opening and/or cut in which the second opening and/or cut width is greater than the first opening width
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US Patent 8064035 Polarization gratings in mesogenic films
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US Patent 8076386 Materials for imprint lithography
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US Patent 8160411 Device for expanding an exit pupil in two dimensions
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US Patent 8233204 Optical displays
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US Patent 8248458 Variable fixation viewing distance scanned light displays
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US Patent 8264623 Liquid crystal geometrical phase optical elements and a system for generating and rapidly switching helical modes of an electromagnetic wave, based on these optical elements
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US Patent 8508848 Exit pupil expanders with wide field-of-view
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•••
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
11668989
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Patent Primary Examiner
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Edmond C Lau
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CPC Code
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G02F 1/13718
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