VOLUME HOLOGRAPHIC OPTICAL ELEMENT PROJECTION SYSTEM
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Aug 3, 2023
filing date -
Mar 24, 2023
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Abstract
A volume holographic optical element projection system includes a projection lens, a polarizing beam splitter, a liquid crystal on silicon panel, and a volume holographic optical element. The projection lens includes a light incident side, a light emitting side, and nine lenses. A f-number of the projection lens is in a range from 1 to 3. The f-number is a value derived from dividing the focal length by the entrance pupil diameter. The liquid crystal on silicon panel includes a protection glass. The polarizing beam splitter is located between the light incident side of the projection lens and the protection glass of the liquid crystal on silicon panel. The light emitting side of the projection lens faces the volume holographic optical element.
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