Meta optical device and electronic apparatus including the same

    公开(公告)号:US12174367B2

    公开(公告)日:2024-12-24

    申请号:US18343167

    申请日:2023-06-28

    Abstract: A meta-optical device includes a plurality of phase modulation areas configured to modulate a phase of an incident light, each of the plurality of phase modulation areas including a plurality of nanostructures having a shape and an arrangement that are determined according to a respective rule set for each of the plurality of phase modulation areas; and a compensation area located between a kth phase modulation area and a (k+1)th phase modulation area adjacent to each other, from among the plurality of phase modulation areas, and including a compensation structure for buffering an effective refractive index change occurring in a boundary area between the kth phase modulation area and the (k+1)th phase modulation area according to respective rules of the kth phase modulation area and the (k+1)th phase modulation area, wherein N is a number of the plurality of phase modulation areas, k and N are natural numbers, and k is equal to or greater than 1 and less than N.

    Meta-optical device and electronic apparatus including the same

    公开(公告)号:US12066696B2

    公开(公告)日:2024-08-20

    申请号:US17400840

    申请日:2021-08-12

    CPC classification number: G02F1/0121 G02B1/002 G02F1/0018

    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.

    META LENS AND OPTICAL APPARATUS INCLUDING THE SAME

    公开(公告)号:US20230358923A1

    公开(公告)日:2023-11-09

    申请号:US18224990

    申请日:2023-07-21

    CPC classification number: G02B3/04 G02B1/002 G02B5/126 G02B1/14

    Abstract: A meta lens includes a first lens surface, and a second lens surface provided opposite to the first lens surface, wherein at least one of the first lens surface and the second lens surface is a metasurface including a plurality of nanostructures having a sub-wavelength dimension that is less than a central wavelength λ0 in an operation wavelength band of the meta lens, and wherein a deflection property of the first lens surface and a deflection property of the second lens surface based on positions of incident light are opposite to each other in at least some regions of each of the first lens surface and the second lens surface.

    Meta optical device and electronic apparatus including the same

    公开(公告)号:US11726310B2

    公开(公告)日:2023-08-15

    申请号:US17174703

    申请日:2021-02-12

    CPC classification number: G02B26/06 G02B1/002 G02B2207/101

    Abstract: A meta-optical device includes a plurality of phase modulation areas configured to modulate a phase of an incident light, each of the plurality of phase modulation areas including a plurality of nanostructures having a shape and an arrangement that are determined according to a respective rule set for each of the plurality of phase modulation areas; and a compensation area located between a kth phase modulation area and a (k+1)th phase modulation area adjacent to each other, from among the plurality of phase modulation areas, and including a compensation structure for buffering an effective refractive index change occurring in a boundary area between the kth phase modulation area and the (k+1)th phase modulation area according to respective rules of the kth phase modulation area and the (k+1)th phase modulation area, wherein N is a number of the plurality of phase modulation areas, k and N are natural numbers, and k is equal to or greater than 1 and less than N.

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