Optical modulating device and optical apparatus employing the same
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United States of America
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Dec 24, 2024
Grant Date -
Dec 30, 2021
app pub date -
Nov 23, 2020
filing date -
Nov 23, 2020
priority date (Note) -
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Abstract
Provided is an optical modulating device including an incidence optical system, an optical modulating assembly including a plurality of nano-antennas that form a meta-grating based on a driving signal, the optical modulating assembly being configured to change a traveling direction of incidence light incident at an incidence angle from the incidence optical system based on an effective displacement of the meta-grating according to the driving signal, and an emission optical system configured to emit light steered by the optical modulating assembly, wherein the emission optical system is further configured to emit first-order diffraction light of the incidence light based on the meta-grating.
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