SPECTACLE LENS, DESIGN METHOD FOR THE SAME, AND DESIGN SYSTEM FOR THE SAME

    公开(公告)号:US20230273458A1

    公开(公告)日:2023-08-31

    申请号:US18014092

    申请日:2021-07-14

    IPC分类号: G02C7/02

    摘要: A technology for inhibition of myopia progression adapted to the RPR of the wearer is provided. A spectacle lens and related technology are provided that include a base area that causes a beam that enters through an object-side surface to exit through an eye-side surface and converge on a retina via the eye, and a plurality of defocus areas that each contact the base area and have a characteristic whereby a beam that passes through at least a portion of the defocus area is incident on the retina as a diverging ray, and, in not less than half of the plurality of defocus areas, at least one of a defocus power and a size of each defocus area is set, so as to compensate for a change in retinal spot size due to relative peripheral refraction (RPR) that depends on an eccentricity angle of the eye of the wearer.

    TRANSPARENT ULTRASOUND TRANSDUCER WITH LIGHT BEAM SHAPING AND THE METHOD FOR ASSEMBLING THE SAME

    公开(公告)号:US20220365209A1

    公开(公告)日:2022-11-17

    申请号:US17302703

    申请日:2021-05-11

    IPC分类号: G01S15/89 G10K11/30

    摘要: A transparent ultrasound transducer device for multi-mode optical imaging on a target is provided. The device includes a transparent piezoelectric transducer, one or more wires, and an optical lens. The transparent piezoelectric transducer of a first acoustic impedance is configured to receive acoustic waves from the target. The transparent piezoelectric transducer has a first surface and a second surface. The first surface and the second surface are coated with transparent electrically conductive coatings. The optical lens is contacted with and optically coupled to the first surface of the transparent piezoelectric transducer. The optical lens is made of a material with a second acoustic impedance, and the first and second acoustic impedances are substantially similar to minimize an acoustic impedance mismatch such that sensitivity of the device is improved.

    Face Shield For Protecting Face of Wearer

    公开(公告)号:US20210282477A1

    公开(公告)日:2021-09-16

    申请号:US17248338

    申请日:2021-01-21

    IPC分类号: A41D13/11

    摘要: The present disclosure provides a face shield including one or more airstream-deflecting protrusions for deflecting airstream away from the wearer so as to avoid bacteria, virus or any other hazardous materials in the airstream from depositing on the head and/or hair of a wearer. The present disclosure further provides a full face shield including a flexible sheet, and the flexible sheet has a top portion comprising two folding structures located adjacent to lateral edges of the flexible sheet respectively for bending the top portion towards a forehead of a wearer. As the top portion of the full face shield is bent towards a forehead of the wearer through the folding structure, the face, forehead and a large portion of the front skull of the wearer can be protected.

    Multi-level-architecture multifiber composite yarn

    公开(公告)号:US11028504B2

    公开(公告)日:2021-06-08

    申请号:US15953858

    申请日:2018-04-16

    IPC分类号: D02G3/38 D02G3/40 D02G3/04

    摘要: A multi-level-architecture multi-fiber composite yarn includes a composite yarn having a first anisotropic expansion coefficient in an axial and/or radial direction, and a matrix material included with the yarn, wherein the matrix material has a second anisotropic expansion coefficient that is different from the first anisotropic expansion coefficient in at least one of the axial or radial directions. A method of fabricating a multi-level-architecture multi-fiber composite yarn includes infiltrating a composite yarn having a first anisotropic expansion coefficient in an axial and/or radial directions with a matrix material having a second anisotropic expansion coefficient different from the first anisotropic expansion coefficient in the axial or radial direction.

    METHOD AND SYSTEM FOR OPTOGENETICS EXPERIMENTS

    公开(公告)号:US20210154489A1

    公开(公告)日:2021-05-27

    申请号:US16843674

    申请日:2020-04-08

    IPC分类号: A61N5/06 A61K48/00

    摘要: A method for optogenetics experiments, based on wavefront shaping and including: calculating the transmission matrix between an input end and an output end of the multimode fiber under a fixed shape; implanting the output end into an intracranial space of an experimental subject; and performing wavefront compensation to a light to be input into the input end, according to the spatial position of the optical stimulation and the transmission matrix of the multimode fiber, to form a compensated expanded light, and inputting the compensated expanded light from the input end into the multimode fiber, such that the compensated expanded light, after being transmitted by the multimode fiber to the output end and output from the output end, is capable of focusing at the spatial position of the optical stimulation.

    Voltage balancing circuit
    149.
    发明授权

    公开(公告)号:US10418825B2

    公开(公告)日:2019-09-17

    申请号:US15518243

    申请日:2015-06-02

    IPC分类号: H02J7/00 H03K17/687 H02J7/34

    摘要: A voltage balancing circuit is applied to a power supply system. The power supply system comprises N power storage devices. The voltage balancing circuit comprises: N switches, N capacitors and a controller; the N switches are respectively connected to the N serial power storage devices; the N switches are respectively connected to the first terminals of the N capacitors; the second terminals of the N capacitors are connected to a common neutral line; the controller is connected to the N switches through a control line to control the switching of the N switches. The voltage balancing circuit avoids power loss when balancing the voltage of a plurality of serial power storage devices, and is small in size and low-cost, and balances voltage quickly.