LIGHT-EMITTING DEVICE, OPTICAL DEVICE, AND MEASUREMENT DEVICE

    公开(公告)号:US20210265814A1

    公开(公告)日:2021-08-26

    申请号:US17109067

    申请日:2020-12-01

    Abstract: A light-emitting device includes a laser unit; and a first capacitive element and a second capacitive element that supply a driving electric current to the laser unit; wherein the first capacitive element has a smaller capacity and smaller equivalent series inductance than the second capacitive element, and a length of a first electric current path along which the driving electric current output from the first capacitive element returns to the first capacitive element is shorter than a length of a second electric current path along which the driving electric current output from the second capacitive element returns to the second capacitive element.

    LIGHT EMITTING DEVICE
    8.
    发明申请

    公开(公告)号:US20220077659A1

    公开(公告)日:2022-03-10

    申请号:US17528177

    申请日:2021-11-16

    Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.

    LIGHT EMITTING DEVICE, OPTICAL DEVICE, AND INFORMATION PROCESSING APPARATUS

    公开(公告)号:US20210293966A1

    公开(公告)日:2021-09-23

    申请号:US17341595

    申请日:2021-06-08

    Abstract: A light emitting device includes: a substrate; a light emitting element array provided on the substrate, the light emitting element array having first and second side surfaces facing each other, and third and fourth side surfaces facing each other and connecting the first and second side surfaces; a driving element provided on the substrate at a side of the first side surface and driving the light emitting element array; a light receiving element provided on the substrate at a side of the second side surface and receiving light emitted from the light emitting element array; and a wiring member provided at a side of the third side surface and at a side of the fourth side surface and extending from an upper surface electrode of the light emitting element array toward an outside of the light emitting element array.

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