Light-emitting element array, light emitting device, optical device, measurement device and information processing apparatus

    公开(公告)号:US11769990B2

    公开(公告)日:2023-09-26

    申请号:US17123060

    申请日:2020-12-15

    CPC classification number: H01S5/423 G01B11/24 G06F21/36 G06V20/64 G06V40/172

    Abstract: A light-emitting element array includes multiple light-emission instruction units arranged in a first direction; a first light-emitting element group row including light-emitting element groups each including a multiple light-emitting elements such that the light-emitting element groups are arranged in a direction intersecting the first direction; a second light-emitting element group row including light-emitting element groups each including a multiple light-emitting elements such that the second light-emitting element group row is arranged along the first light-emitting element group row in the first direction; and a multiple wiring lines that connect the multiple light-emission instruction units to the light-emitting element groups in the first light-emitting element group row and the light-emitting element groups in the second light-emitting element group row to provide a light-emission instruction. The multiple wiring lines are connected such that in response to the multiple light-emission instruction units sequentially providing a light-emission instruction in the first direction, the light-emitting element groups in the first light-emitting element group row sequentially emit light in the direction intersecting the first direction and, after turning on of the first light-emitting element group row is completed, the light-emitting element groups in the second light-emitting element group row sequentially emit light in the direction intersecting the first direction.

    Light emitting device
    14.
    发明授权

    公开(公告)号:US11646547B2

    公开(公告)日:2023-05-09

    申请号:US16716448

    申请日:2019-12-16

    Inventor: Daisuke Iguchi

    CPC classification number: H01S5/183 H01S5/02345 H01S5/04256

    Abstract: A light emitting device includes a substrate, a light emitting element, a driving element, and a capacitor layer. The light emitting element and the driving element are provided on the substrate. The driving element drives the light emitting element. The capacitor layer is provided in the substrate and supplies electric current to the light emitting element via the driving element.

    Light-emitting device, optical device, and measurement device

    公开(公告)号:US11936160B2

    公开(公告)日:2024-03-19

    申请号:US17109067

    申请日:2020-12-01

    CPC classification number: H01S5/0428 G01S7/4814 G01S17/894

    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.

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