PIXEL STRUCTURE, METASURFACE AND METHOD OF CONTROLLING PIXEL STRUCTURE

    公开(公告)号:US20250093688A1

    公开(公告)日:2025-03-20

    申请号:US18964654

    申请日:2024-12-01

    Abstract: A pixel structure is provided, and the pixel structure includes a plurality of phase change units, and the plurality of phase change units are in identical; the plurality of phase change units are arranged in an array; each phase change unit includes an excitation element and a phase change element, and the excitation element is used for applying independent excitation to the phase change element to change a phase state of the phase change element; each phase change element comprises at least one nanostructure made of a phase change material; the phase state of the phase change element includes a crystalline state or an amorphous state; the phase change state of the pixel structure is related to the number of phase change units containing different phase change states.

    METHOD OF DESIGNING A METASURFACE, A BEAM SHAPER, A DEVICE AND ELECTRONIC EQUIPMENT

    公开(公告)号:US20240289511A1

    公开(公告)日:2024-08-29

    申请号:US18420726

    申请日:2024-01-23

    CPC classification number: G06F30/17 G02B27/0944

    Abstract: A method of designing a metasurface, a beam shaper, a device and electronic equipment are provided. The method of designing the metasurface includes: determining a type of an incident beam and parameters of the incident beam; determining a type of an outgoing beam and a parameter of the outgoing beam; based on the parameters of the incident beam and the parameter of the outgoing beam, determining an initial value of a diffraction phase distribution; the diffraction phase distribution represents a phase distribution configured to modulate the incident beam to the outgoing beam; based on the type of the incident beam and the type of the outgoing beam, iteratively optimizing the diffraction phase distribution to obtain an optimized diffraction phase distribution; generating a target phase distribution according to the optimized diffraction phase distribution; and generating the metasurface according to the target phase distribution.

    IMAGE GENERATOR, HEAD-UP DISPLAY AND VEHICLE
    14.
    发明公开

    公开(公告)号:US20240210689A1

    公开(公告)日:2024-06-27

    申请号:US18596660

    申请日:2024-03-06

    CPC classification number: G02B27/0101 G02B1/002

    Abstract: Provided is an image generator, a head-up display and a vehicle. The image generator includes an image source and a metasurface. The metasurface is provided at a light-outgoing side of the image source. The image source is configured to emit imaging light, and the imaging light is capable of propagating towards the metasurface. The metasurface is configured to modulate incident imaging light hitting the metasurface, so as to adjust a propagation direction of outgoing imaging light leaving the metasurface and direct the outgoing imaging light leaving the metasurface towards a light-outgoing area of the image generator.

    OPTICAL SYSTEM AND OPTICAL CAMERA
    15.
    发明申请

    公开(公告)号:US20250130399A1

    公开(公告)日:2025-04-24

    申请号:US18915368

    申请日:2024-10-15

    Abstract: An optical system and an optical camera are provided, and the optical system includes three optical elements. Along the optical axis in order from an object plane to an image plane, the three optical elements include: a first sulfur refractive lens, a metalens and a second sulfur refractive lens; each of three optical elements includes an object-side surface facing towards the object plane and an image-side surface facing towards the image plane; the first sulfur refractive lens and the second sulfur refractive lens are even aspheric optical lenses; the object-side surface of the first sulfur refractive lens is a convex surface; each of the object-side surface of the second sulfur refractive lens and the image-side surface of the second sulfur refractive lens includes one inflection point; the first sulfur refractive lens, the metalens and the second sulfur refractive lens have positive focal power.

    OPTICAL SYSTEM AND IMAGING DEVICE
    16.
    发明申请

    公开(公告)号:US20250123469A1

    公开(公告)日:2025-04-17

    申请号:US18991076

    申请日:2024-12-20

    Abstract: An optical system and an imaging device are provided, and the optical system includes seven optical elements In order from an object side to an image side, the seven optical elements include: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens; each of seven optical elements includes an object-side surface facing towards the object plane and an image-side surface facing towards the image plane; at least one optical element of the seven optical elements is a metalens, and other optical element are aspheric optical lenses; and from the image side to the object side, both the first aspheric optical lens and the second aspheric optical lens include at least one aspheric surface, and the aspheric surface includes one point of inflection.

    OPTICAL SYSTEM AND IMAGING DEVICE
    17.
    发明申请

    公开(公告)号:US20250123468A1

    公开(公告)日:2025-04-17

    申请号:US18986606

    申请日:2024-12-18

    Abstract: An optical system and an imaging device are provided, and the optical system includes six optical elements; in order from an object side to an image side, the six optical elements include: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens; the first lens is an aspheric refractive lens, and the second lens is a metalens; all the third lens, the fourth lens, the fifth lens and the sixth lens are refractive lenses; from the image side to the object side, there is at least one aspheric surface in the surfaces of the third lens, the fourth lens, the fifth lens and the sixth lens, and the aspheric surface has one point of inflection; the first lens has a positive focal power, and the object-side surface of the first lens is a convex surface.

    METHOD, DEVICE AND ELECTRICAL DEVICE OF DESIGNING METALENS AND STORAGE MEDIUM

    公开(公告)号:US20250110256A1

    公开(公告)日:2025-04-03

    申请号:US18884076

    申请日:2024-09-12

    Abstract: A metalens is provided, the metalens includes: a substrate, a plurality of structural units arranged in periodicity; and the structural units are perpendicular to the substrate; the metalens includes a plurality of phase-modulation regions, and each phase-modulation region includes the plurality of structural units; where, each structural unit includes m phase-modulation layers, m≥2, so as to make each structural unit in each phase-modulation region provide any phase within the interval of [0,2π] and each phase-modulation region cover the phases within the interval of [0,2π] at a working waveband.

    METHOD AND DEVICE OF DESIGNING OPTICAL SYSTEM

    公开(公告)号:US20240427140A1

    公开(公告)日:2024-12-26

    申请号:US18822248

    申请日:2024-09-01

    Abstract: A method and a device of designing an optical system, and a storage medium are provided. The method includes: S1. determining an initial structure parameter of the optical system according to a design requirement; S2. optimizing the initial structure parameter according to the ray tracing method, and obtaining a theoretical structure parameter; S3. performing a discretization on a phase of a metalens of the theoretical structure parameter and obtaining a discrete phase; S4. performing an optical field propagation simulation according to the discrete phase, and obtaining an imaging performance index; S5. if the image performance index meets the design requirement, obtaining a target structure parameter; if the image performance index doesn't meet the design requirement, re-optimizing the image performance index and obtaining the target structure parameter.

    METALENS ARRAY AND WAVEFRONT SENSOR SYSTEM
    20.
    发明公开

    公开(公告)号:US20240319016A1

    公开(公告)日:2024-09-26

    申请号:US18731338

    申请日:2024-06-02

    CPC classification number: G01J9/00 G02B1/002 G02B3/0043 G01J2009/002

    Abstract: Provided is a metalens array and a wavefront sensor system, and the metalens array includes: at least a metalens array unit; and the metalens array unit includes: a transmittive metalens array, the transmittive metalens array includes: a plurality of transmittive metalens at different working waveband, and the plurality of transmittive metalens have the same focal length and can be used for focusing incident lights of different wavelengths to different positions of a first plane. According to the present disclosure, a plurality of transmittive metalens with different working wavelengths may focus the light of different wavelengths at different positions in the focal plane and obtain the focal point offset of different wavelengths, so as to calculate wavefront of multiple wavelengths.

Patent Agency Ranking