Nanostructured optical element, depth sensor, and electronic device

    公开(公告)号:US11019328B2

    公开(公告)日:2021-05-25

    申请号:US16166580

    申请日:2018-10-22

    Abstract: Provided are a nanostructured optical element, a depth sensor, and an electronic device. The nanostructured optical element includes: an array of a plurality of laser sources; a meta-pattern layer including a two-dimensional array of plurality of first nano-posts; and a deflecting layer between the light source and the meta-pattern layer. Each of the first nano-posts has a dimension smaller than a wavelength of light output from the plurality of laser sources. The deflecting layer is configured to direct light from the light source onto the meta-pattern layer.

    META PROJECTOR AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20190034035A1

    公开(公告)日:2019-01-31

    申请号:US15991005

    申请日:2018-05-29

    Abstract: A meta projector includes an edge emitting device configured to emit light through a side surface thereof, a meta-structure layer spaced apart from the upper surface of the edge emitting device that includes a plurality of nanostructures having a sub-wavelength shape dimension smaller than a wavelength of the light emitted from the edge emitting device, and a path changing member configured to change a path of the light emitted from the edge emitting device so as to direct the path toward the meta-structure layer. The meta projector may thus be configured to emit a light pattern of structured light, based on directing the light emitted from the edge emitting device through the meta-structure layer, while having a relatively compact device size.

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