SPATIAL LIGHT MODULATOR AND LIDAR APPARATUS INCLUDING THE SAME

    公开(公告)号:US20230117032A1

    公开(公告)日:2023-04-20

    申请号:US17747441

    申请日:2022-05-18

    Abstract: A spatial light modulator and a light detection and ranging (LiDAR) apparatus including the spatial light modulator are provided. The spatial light modulator includes: a first reflective layer; a second reflective layer comprising a plurality of grating structures spaced apart from each other; a resonance layer provided between the first reflective layer and the second reflective layer; and a filling layer having a heat transfer coefficient of about 100 mW/mK or less and being in contact with an upper surface of the resonance layer while surrounding at least one grating structure of the plurality of grating structures.

    DISPLAY APPARATUS HAVING WIDE VIEWING WINDOW

    公开(公告)号:US20230032297A1

    公开(公告)日:2023-02-02

    申请号:US17956376

    申请日:2022-09-29

    Abstract: Provided a display apparatus including an image forming apparatus configured to form an image, a projection optical system configured to project the image formed by the image forming apparatus, and a combining optical system configured to provide the image projected from the projection optical system combined with light emitted from an external landscape, wherein the combining optical system is configured to divide the image projected from the projection optical system into same images and focus the same images on different positions.

    LIGHT MODULATOR, OPTICAL DEVICE INCLUDING LIGHT MODULATOR, AND ELECTRONIC APPARATUS INCLUDING OPTICAL DEVICE

    公开(公告)号:US20210173239A1

    公开(公告)日:2021-06-10

    申请号:US16880350

    申请日:2020-05-21

    Abstract: Provided is a light modulator including a substrate, and a resonator configured to modulate a phase of incident light by modulating a refractive index based on an external stimulus, the resonator comprising a first reflective structure provided on the substrate, a cavity layer provided on the first reflective structure, and a second reflective structure provided on the cavity layer, wherein at least one of the first reflective structure or the second reflective structure comprises first material layers, second material layers that are alternately stacked with the first material layers, and a third material layer, and wherein each of the first material layers has a first refractive index, each of the second material layers has a second refractive index that is different from the first refractive index, and the third material layer has a third refractive index that is different from the first refractive index

    BEAM STEERING APPARATUS AND SYSTEM INCLUDING THE SAME

    公开(公告)号:US20210149227A1

    公开(公告)日:2021-05-20

    申请号:US16860527

    申请日:2020-04-28

    Abstract: A beam steering apparatus includes a substrate; at least one light source provided on the substrate; a first waveguide configured to transmit a first light beam radiated from the at least one light source; at least one beam splitter configured to split the first light beam transmitted by the first waveguide to obtain a second light beam; a second waveguide configured to receive the second light beam; and a quantum dot optical amplifier provided on the second waveguide and comprising a barrier layer, a quantum dot layer, and a wetting layer, the quantum dot optical amplifier being configured to modulate a phase of the second light beam, and to amplify an intensity of the second light beam.

    IMAGE DISPLAY DEVICE AND METHOD OF DISPLAYING IMAGE USING MULTIPLEX HOLOGRAPHIC OPTICAL ELEMENT

    公开(公告)号:US20200073124A1

    公开(公告)日:2020-03-05

    申请号:US16283979

    申请日:2019-02-25

    Abstract: Provided is an image display device including a first light source configured to emit a first beam of light, a second light source configured to emit a second beam of light, a spatial light modulator configured to modulate the first beam of light and the second beam of light, a holographic optical element configured to focus, on a first focal point, the first beam of light emitted from the first light source and modulated by the spatial light modulator, and to focus, on a second focal point, the second beam of light emitted from the second light source and modulated by the spatial light modulator and a processor configured to control the first and the second light sources and the spatial light modulator.

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