LIGHTING DEVICE
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United States of America Patent
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Issued Date -
Feb 10, 2022
app pub date -
Sep 6, 2019
filing date -
Sep 6, 2019
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Abstract
A lighting device includes a lighting film including a prism layer that emits incident light in a prescribed direction, and a rigid body that includes a receiving unit having a prescribed cross-sectional rigidity and supporting the lighting film, and a retaining unit that fixes the lighting film to the receiving unit.
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