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    OPTICAL DEVICE, SCANNING OPTICAL DEVICE, AND IMAGE FORMING DEVICE
    2.
    发明公开
    OPTICAL DEVICE, SCANNING OPTICAL DEVICE, AND IMAGE FORMING DEVICE 审中-公开

    公开(公告)号：US20240027749A1

    公开(公告)日：2024-01-25

    申请号：US18353178

    申请日：2023-07-17

    Applicant: Konica Minolta Inc.

    Inventor： Akira TANIYAMA ,  Ryo HASEGAWA ,  Takahiro MATSUO

    IPC: G02B26/12 ,  G02B26/08 ,  G03G15/04

    CPC classification number: G02B26/124 ,  G02B26/0816 ,  G03G15/0409

    Abstract: An optical device includes: an optical element having a first surface and a second surface; a first seat surface member that abuts on the first surface of the optical element; a first pressing member that abuts on the second surface of the optical element at a position facing the first seat surface member via the optical element, and press the optical element against the first seat surface member; an adjustment member that abuts on the second surface of the optical element at a position different from the first pressing member, and displaces the abutment position to adjust a posture of the optical element; and a second pressing member that abuts on the first surface of the optical element at a position facing the adjustment member via the optical element, and applies a pressing force to the abutment position to press the optical element against the adjustment member.

    APPARATUSES AND METHODS FOR HIGH-SPEED LASER SCANNING
    3.
    发明公开
    APPARATUSES AND METHODS FOR HIGH-SPEED LASER SCANNING 审中-公开

    公开(公告)号：US20230266577A1

    公开(公告)日：2023-08-24

    申请号：US18172139

    申请日：2023-02-21

    Applicant: PURDUE RESEARCH FOUNDATION

    Inventor： Meng CUI

    IPC: G02B21/00 ,  G02B26/12

    CPC classification number: G02B21/0048 ,  G02B26/124 ,  G02B26/125

    Abstract: High speed laser scanning systems and methods are disclosed for imaging target samples. Embodiments of the laser scanning systems and methods include separating a laser beam into two or more different pathways and pulsing light along the two or more pathways. The different pathways intersect the surface of a moving mirror at different locations and light traveling in a pathway that is being approached by an edge of the moving reflective surface is turned off while light traveling in a different pathway that is farther from the edge of the moving reflective surface is turned on. Embodiments include reflective surfaces that form a rotating polygonal scanner. Further embodiments include recombining the two or more different pathways, focusing the laser light on a test sample, and imaging the light reflected from the test sample.

    OPTICAL SCANNING APPARATUS AND ELECTRONIC IMAGE-FORMING APPARATUS
    5.
    发明公开
    OPTICAL SCANNING APPARATUS AND ELECTRONIC IMAGE-FORMING APPARATUS 审中-公开

    公开(公告)号：US20230236523A1

    公开(公告)日：2023-07-27

    申请号：US18187656

    申请日：2023-03-21

    Applicant: Zhuhai Pantum Electronics Co., Ltd.

    Inventor： Yongchao NIE ,  Chao WANG

    IPC: G03G15/043 ,  G02B26/10 ,  G02B26/12

    CPC classification number: G03G15/043 ,  G02B26/101 ,  G02B26/124

    Abstract: The present disclosure provides an optical scanning apparatus and an electronic image-forming apparatus. The optical scanning apparatus includes a light source; a first optical unit; an optical deflector, configured to deflect the light beam emitted from the first optical unit; and a second optical unit, configured to guide the light beam deflected by the optical deflector on a scanned target surface for forming an image. An image height on the scanned target surface satisfies an expression: Y=fc×tan(B×θ), where Y denotes the image height on the scanned target surface, fc denotes an image-forming characteristic coefficient of the second optical unit, B denotes a scanning coefficient of the second optical unit, θ denotes an effective scanning angle of the optical scanning apparatus, and all region or a partial region in effective scanning range of the second optical unit satisfies a condition: 0.7≤B≤0.9.

    Image forming apparatus that controls timing of polygon mirror
    10.
    发明授权
    Image forming apparatus that controls timing of polygon mirror 有权

    公开(公告)号：US09904205B2

    公开(公告)日：2018-02-27

    申请号：US15042065

    申请日：2016-02-11

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Norihiro Shirahata

    IPC: G03G15/043 ,  G02B26/12

    CPC classification number: G03G15/043 ,  G02B26/124

    Abstract: An image forming apparatus includes a rotating polygon mirror configured to rotate and reflect the first laser beam and the second laser beam, a first generation unit configured to generate a first signal based on timings at which the respective first laser beams, a second generation unit configured to generate a second signal for determining a timing to form an electrostatic latent image on the second image bearing member with the second laser beam based on the first signal and a correction value, and a calculation unit configured to calculate the correction value based on the output of the detection unit, in which the calculation unit calculates the correction value based on the signal output from the detection unit in a period of time that has passed until the rotating polygon mirror reaches steady rotation since it has started to be driven to rotate.

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