LIGHT GUIDING APPARATUS AND METHOD OF PRODUCING THE SAME
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United States of America Patent
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Issued Date -
Oct 12, 2023
app pub date -
May 31, 2023
filing date -
Aug 18, 2021
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Abstract
A light guiding apparatus comprising: a light guiding substrate; a light receiving unit including first and second units provided on a surface of the substrate, the first and second units transmitting received rays along first and second paths in the substrate as first and second light beams, respectively; a first direction changing unit for the first light beam; a second direction changing unit for the second light beam; and a light emitting unit receiving the first and the second light beams, combining the beams for emission and provided on the surface, wherein on the surface the center of the minimum circle encompassing the first unit is located farther away from the light emitting unit than the center of the minimum circle encompassing the second unit and the first path runs through the portion of the substrate on which the second unit is provided.
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