META-OPTICAL DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20220221741A1

    公开(公告)日:2022-07-14

    申请号:US17400840

    申请日:2021-08-12

    Abstract: Provided is a meta-optical device exhibiting a target phase delay profile with respect to incident light of a predetermined wavelength band, the meta-optical device including: a first layer including a plurality of first nanostructures and a first surrounding material surrounding the plurality of first nanostructures, and having a first phase delay profile of a first tendency that is substantially equal to a tendency of the target phase delay profile; a second layer including a plurality of second nanostructures and a second surrounding material surrounding the plurality of second nanostructures, and having a second phase delay profile of a second tendency that is substantially opposite to the tendency of the target phase delay profile; and a third layer including a plurality of third nanostructures and a third surrounding material surrounding the plurality of third nanostructures, wherein the third layer is different from the second layer in terms of at least one of a material and an arrangement rule. The meta-optical device is capable of minimizing a primary dispersion and higher-order dispersions and thus may exhibit constant diffraction efficiency with respect to light of a wide wavelength band.

    STRUCTURED LIGHT PROJECTOR AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20210199426A1

    公开(公告)日:2021-07-01

    申请号:US17200073

    申请日:2021-03-12

    Abstract: A structured light projectors includes an illuminator configured to emit illumination light, a pattern mask configured to project structured light by partially transmitting the illumination light, and a lens configured to project the structured light, wherein the pattern mask includes a first lens distortion compensation region including a plurality of opaque first light shielding patterns having a first pattern width, respectively, and a second lens distortion compensation region surrounding the first lens distortion compensation region, the second lens distortion compensation region including a plurality of opaque second light shielding patterns having a second pattern width, respectively, wherein the second pattern width is less than the first pattern width.

    IMAGE SENSOR INCLUDING NANOSTRUCTURE COLOR FILTER

    公开(公告)号:US20210028235A1

    公开(公告)日:2021-01-28

    申请号:US17071364

    申请日:2020-10-15

    Abstract: An image sensor includes a first light sensor layer including light sensing cells configured to sense first light of an incident light and generate electrical signals based on the sensed first light, and a color filter array layer disposed on the first light sensor layer, and including color filters respectively facing the light sensing cells. The image sensor further includes a second light sensor layer disposed on the color filter array layer, and configured to sense second light of the incident light and generate an electrical signal based on the sensed second light. Each of the color filters includes a nanostructure including a first material having a first refractive index, and a second material having a second refractive index greater than the first refractive index, the first material and the second material being alternately disposed with a period.

    IMAGE SENSOR INCLUDING NANOSTRUCTURE COLOR FILTER

    公开(公告)号:US20190310400A1

    公开(公告)日:2019-10-10

    申请号:US16439010

    申请日:2019-06-12

    Abstract: An image sensor includes an optical sensor layer including a plurality of light-sensitive cells configured to sense light to generate electrical signals, and a color filter array layer disposed on the optical sensor layer and including a plurality of color filters respectively facing the plurality of light-sensitive cells. Each of the plurality of color filters includes a nanostructure in which a first material having a first refractive index and a second material having a second refractive index higher than the first refractive index are arranged. The first material and the second material are alternatively positioned at an interval less than a central wavelength of a color of the color filter. Thus, a thin image sensor having good wavelength selectivity and suitable for obtaining high resolution images is provided.

    BEAM SCANNING APPARATUS AND OPTICAL APPARATUS INCLUDING THE SAME

    公开(公告)号:US20190079367A1

    公开(公告)日:2019-03-14

    申请号:US16023641

    申请日:2018-06-29

    Abstract: A beam scanning apparatus and an optical apparatus including the same are provided. The beam scanning apparatus includes a first antenna group including a plurality of first nano antennas disposed apart from each other, a first driving voltage line and a second driving voltage line connected to a first nano antenna and a second nano antenna, respectively, among the plurality of first nano antennas, the first nano antenna and the second nano antenna being respectively disposed at first ends within the first antenna group, and a first voltage divider configured to distribute a plurality of first voltages to one or more first middle nano antennas disposed between the first nano antenna and the second nano antenna, among the plurality of first nano antennas, at regular voltage intervals.

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