OPTICAL DEPTH SENSING APPARATUS
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United States of America
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Apr 10, 2025
app pub date -
Aug 2, 2024
filing date -
Aug 2, 2024
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Abstract
An optical depth sensing apparatus includes a first light source emitting a first light beam having a first polarization state, a second light source emitting a second light beam having a second polarization state, a first sensing device sensing the first light beam and including a first metalens, and a second sensing device sensing the second light beam and including a second metalens. An electric field direction of the first polarization state is perpendicular to an electric field direction of the second polarization state. The first light beam having the first polarization state is transmitted to the first metalens, and the second light beam having the second polarization state is reflected or absorbed by the first metalens. The second light beam having the second polarization state is transmitted to the second metalens, and the first light beam having the first polarization state is reflected or absorbed by the second metalens.
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