Lens control device, imaging apparatus, operation method of lens control device, and program

    公开(公告)号:US12189208B2

    公开(公告)日:2025-01-07

    申请号:US17892115

    申请日:2022-08-21

    Abstract: A lens control device includes a processor that performs a control of generating image data for each of first wavelength range light and second wavelength range light by an image sensor, in which the processor estimates a first focus position of a focus lens for the first wavelength range light based on a first focus evaluation value determined in accordance with the image data of the first wavelength range light, estimates a second focus position of the focus lens for the first wavelength range light based on a second focus evaluation value determined in accordance with the image data of the second wavelength range light, and performs a control of moving the focus lens along an optical axis based on the first focus position in a case in which a comparison result obtained by comparing the first focus position with the second focus position satisfies a predetermined condition.

    Electronic device and control method therefor

    公开(公告)号:US12164683B2

    公开(公告)日:2024-12-10

    申请号:US18303723

    申请日:2023-04-20

    Inventor: Takeshi Uchida

    Abstract: An electronic device that has a line-of-sight detection function and is capable of suppressing the execution of an operation different from the intention of a user, and a control method therefor are disclosed. The device has a function for detecting coordinates on an image at which a user is gazing as point-of-gaze coordinates. The device, in a case where a movement of the point-of-gaze coordinates has been detected, measures a duration of the point-of-gaze coordinates after the movement. The device further determines that the movement of the point-of-gaze coordinates with the duration larger than a time threshold is a viewpoint movement that is intended by the user, and determines that the movement of the point-of-gaze coordinates with the duration equal to or smaller than the time threshold is a viewpoint movement that is not intended by the user.

    SYSTEMS AND METHODS FOR AUTOFOCUS
    4.
    发明公开

    公开(公告)号:US20240151937A1

    公开(公告)日:2024-05-09

    申请号:US18499911

    申请日:2023-11-01

    Inventor: David P. HOFFMAN

    CPC classification number: G02B7/282 G02B7/38

    Abstract: A method for maintaining focus of an optical system on a target surface is provided. The method includes directing at least one beam of light through an objective lens to a sample, wherein the at least one beam of light is associated with at least two effective numerical apertures and receiving at least one reflected beam at the objective lens. The at least one reflected beam is associated with the at least two effective numerical apertures. The method also includes determining at least one image based on the at least one reflected beam, determining a baseline of a feature for each of the one or more objects, and when the feature differs from the baseline, adjusting a working distance between the objective lens and the sample.

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