IMAGE SENSOR AND IMAGE-CAPTURING DEVICE
    83.
    发明公开

    公开(公告)号:US20230292018A1

    公开(公告)日:2023-09-14

    申请号:US18200794

    申请日:2023-05-23

    申请人: NIKON CORPORATION

    摘要: An image sensor includes: a first readout circuit that reads out a first signal, being generated by an electric charge resulting from a photoelectric conversion, to a first signal line; a first holding circuit that holds a voltage based on an electric current from a power supply circuit; and a first electric current source that supplies the first signal line with an electric current generated by the voltage held in the first holding circuit, wherein: the first holding circuit holds the voltage based on the electric current from the power supply circuit when the first signal is not read out to the first signal line by the first readout circuit.

    Zoom optical system, optical apparatus, imaging apparatus and method for manufacturing the zoom optical system

    公开(公告)号:US11740442B2

    公开(公告)日:2023-08-29

    申请号:US17722709

    申请日:2022-04-18

    申请人: Nikon Corporation

    发明人: Kosuke Machida

    IPC分类号: G02B15/14 G02B15/16

    CPC分类号: G02B15/144105 G02B15/16

    摘要: A zoom optical system comprises, in order from an object: a front lens group (GFS) having a positive refractive power; an M1 lens group (GM1) having a negative refractive power; an M2 lens group (GM2) having a positive refractive power; and an RN lens group (GRN) having a negative refractive power, wherein upon zooming, distances between the front lens group and the M1 lens group, between the M1 lens group and the M2 lens group, and between the M2 lens group and the RN lens group change, upon focusing from an infinite distant object to a short distant object, the RN lens group moves, and the M2 lens group comprises an A lens group that satisfies a following conditional expression, 1.10