Optical system, image projection apparatus, and imaging apparatus

    公开(公告)号:US12253659B2

    公开(公告)日:2025-03-18

    申请号:US17377776

    申请日:2021-07-16

    Abstract: The present disclosure is directed to an optical system internally having an intermediate imaging position that is conjugated to a magnification conjugate point on a magnification side and a reduction conjugate point on a reduction side, respectively, the optical system including: a magnification optical system having A (A is an integer of three or more) pieces of lens elements, positioned on the magnification side with respect to the intermediate imaging position; and a relay optical system having B (B is an integer of two or more) pieces of lens elements, positioned on the reduction side with respect to the intermediate imaging position. A first lens group composed of β pieces (β is one or more and less than B) of lens elements positioned first from the magnification side in the relay optical system has a negative power.

    IMAGING DEVICE
    83.
    发明申请

    公开(公告)号:US20250088738A1

    公开(公告)日:2025-03-13

    申请号:US18824302

    申请日:2024-09-04

    Abstract: An imaging device includes: a mechanical shutter; a shutter driver that operates the mechanical shutter in a continuous shooting mode and a single shooting mode; a driving electric power supplier; and an undercut controller (undercut/driving electric power controller) that stops operation of the imaging device when a power supply voltage becomes lower than a predetermined undercut voltage. In the single shooting mode, the driving electric power supplier lowers a driving electric power and the undercut controller stops operation of the imaging device at a lower undercut voltage.

    Inspection method and inspection machine

    公开(公告)号:US12249058B2

    公开(公告)日:2025-03-11

    申请号:US17338594

    申请日:2021-06-03

    Inventor: Shinya Nakashima

    Abstract: An inspection machine includes image sensors that image a sheet, a lighting device that irradiates the sheet with light, and an image processing device that generates an image of an object from outputs of the image sensors. The image processing device generates captured images that include an image in a predetermined range of the sheet in common based on the outputs from the image sensors. The image processing device extracts images of the object on the sheet for each of the generated captured images. The image processing device associates the extracted images of the object with each other based on a feature amount of the object reflected in the images. The image processing device combines the associated images of the object with each other.

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