OPTICAL ELEMENT AND METHOD FOR MANUFACTURING OPTICAL ELEMENT
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United States of America Patent
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Issued Date -
Feb 8, 2024
app pub date -
Nov 21, 2022
filing date -
Aug 3, 2022
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Abstract
An optical element and a method for manufacturing the optical element are described. The optical element includes a light penetrating substrate, an optical layer, and an adhesive layer. The optical layer is located on a surface of the light penetrating substrate. The optical layer has a first surface and a second surface, which are opposite to each other. The first surface is set with various diffracting optical structures. A refractive index of the optical layer is ranging from substantially 1 to substantially 4. The adhesive layer is sandwiched between the surface of the light penetrating substrate and the second surface of the optical layer.
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