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公开(公告)号：US20230060484A1
公开(公告)日：2023-03-02
申请号：US18048172
申请日：2022-10-20
Inventor： HISAYUKI OGUCHI , KEIJI NARUMI
Abstract: A laser processing apparatus includes at least a laser oscillator, optical fiber (30), and laser head (40). Laser head (40) includes at least first and second shield glasses (45) and (47) and first and second light receivers (51) and (52) inside second housing (41). In first and second shield glasses (45) and (47), first and second coating films (46) and (48) are respectively provided on light receiving surfaces of laser light (LB). First light receiver (51) receives laser light (LB) reflected by first coating film (46) and outputs a first light receiving signal, and second light receiver (52) receives laser light (LB) reflected by peripheral portion (48b) of second coating film (48) and outputs a second light receiving signal.
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公开(公告)号：US20220334367A1
公开(公告)日：2022-10-20
申请号：US17810841
申请日：2022-07-06
Inventor： HISAYUKI OGUCHI , RYO ISHIKAWA , HIROAKI SUZUKI
IPC: G02B19/00 , G02B27/10 , G02B6/42 , B23K26/06 , B23K26/082
Abstract: Laser device (100) includes first and second laser oscillators (1), (2) that respectively emit first and second laser lights (LB1), (LB2) having first and second wavelengths, and first and second optical systems (10), (20). First optical system (10) is configured to couple first and second laser lights (LB1), (LB2) to transmit the first and second laser lights to second optical system (20), and second optical system (20) is configured to condense first laser light (LB1) at first condensing position (FP1) and second laser light (LB2) at second condensing position (FP2). A maximum angle formed by an optical axis and an outermost component of first laser light (LB1) emitted from first optical system (10) is different from a maximum angle formed by an optical axis and an outermost component of the second laser light (LB2).
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公开(公告)号：US20230415261A1
公开(公告)日：2023-12-28
申请号：US18465197
申请日：2023-09-12
Inventor： HISAYUKI OGUCHI , WATARU TAKAHASHI
IPC: B23K26/06
CPC classification number: B23K26/0665 , B23K26/0648 , B23K26/0643 , B23K26/0604
Abstract: Laser processing head (10) includes a bend mirror that bends a second laser beam in a direction intersecting a first laser beam; a dichroic mirror that transmits most of the first laser beam and reflects most of the second laser beam; a workpiece-side condensing lens that condenses the most of the each laser beam to irradiate the workpiece; an image sensor that receives a rest of the first laser beam reflected by the dichroic mirror and a rest of the second laser beam transmitted through the dichroic mirror; a detection-side condensing lens that condenses the rest of the each laser beam to irradiate the image sensor; and an adjuster that adjusts a workpiece-side condensing state on an image plane on a workpiece side. The image sensor detects a detection-side condensing state on an image plane on an image sensor side. The workpiece-side condensing state is adjusted by the adjuster based on the detection-side condensing state.
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公开(公告)号：US20230415260A1
公开(公告)日：2023-12-28
申请号：US18464223
申请日：2023-09-10
Inventor： HISAYUKI OGUCHI , WATARU TAKAHASHI
CPC classification number: B23K26/0643 , B23K26/36 , B23K26/0648
Abstract: Laser processing head (10) includes housing (11) and a plurality of optical components. Housing (11) includes first and second light entrance ports (12a) and (12b) through which first and second laser beams (A) and (B) are incident, and light irradiation port (13). Second laser beam (B) has a wavelength different from first laser beam (A). The plurality of optical components include bend mirror (30), dichroic mirror (40), aperture (71), and detection-side condensing lens (70). First and second laser beams (A) and (B) transmitted through detection-side condensing lens (70) are received by image sensor (60). Aperture (71) is configured to be able to reduce diameters of first and second laser beams (A) and (B) incident on detection-side condensing lens (70).
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