LASER PROCESSING DEVICE
    2.
    发明公开

    公开(公告)号:EP4302917A1

    公开(公告)日:2024-01-10

    申请号:EP22762780.9

    申请日:2022-01-12

    发明人: YAMAZAKI, Naoya

    IPC分类号: B23K26/046

    摘要: A control device (21) controls a scanning unit (37) and a drive unit (39) to scan laser light (LW). In addition, the control device (21) controls a focal point adjustment unit (36) and a drive unit (38) to adjust the focal position of the laser light (LW). In a display mode in which a processing subject (W) is irradiated with visible light (LH), the control device (21) controls the scanning unit (37) and the drive unit (39) to scan the visible light (LH). The control device (21) does not change an inter-lens distance of lenses (36a-36b) of the focal point adjustment unit (36).

    FOCAL LENGTH ADJUSTING DEVICE AND LASER PROCESSING DEVICE

    公开(公告)号:EP4130834A1

    公开(公告)日:2023-02-08

    申请号:EP21779025.2

    申请日:2021-01-26

    摘要: A focal length adjusting device 12 is provided with: a retention unit 70 for retaining a first lens 31; a guide unit 60 for supporting the retention unit 70 so as to allow movement along an optical axis Lx of laser light Lw; a stepper motor 80 that has a shaft body 81 and is arranged so that the central axis O1 of the shaft body 81 is orthogonal to the optical axis Lx; and a conversion unit 90 that is interposed between the shaft body 81 and the retention unit 70 and converts rotational movement of the shaft body 81 into linear movement of the retention unit 70. The conversion unit 90 comprises, between itself and the retention unit 70, a coupling unit 92 that transmits kinetic force from the conversion unit 90 to the retention unit 70 in a direction parallel to the optical axis Lx but does not transmit same in a direction parallel to the central axis O1 of the shaft body 81.