LIGHT DIFFRACTIVE ELEMENT, LIGHT COMPUTING DEVICE, AND METHOD FOR PRODUCING LIGHT DIFFRACTIVE ELEMENT
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United States of America Patent
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Issued Date -
Sep 19, 2024
app pub date -
Jan 27, 2022
filing date -
Feb 19, 2021
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Abstract
A light diffraction element includes microcells disposed along a plane and each of which includes subcells. Each of the subcells has a refractive index with respect to at least one of in-plane directions of the plane. The refractive index is one of n predetermined refractive indexes, where n is an integer of not less than 2.
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