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1.
公开(公告)号:US20200319473A1
公开(公告)日:2020-10-08
申请号:US16840106
申请日:2020-04-03
申请人: II-VI Delaware Inc.
发明人: Axel Heinrici , Goran Bjelajac
IPC分类号: G02B27/09
摘要: The invention relates to a device and a method for generating a multiple spot during laser material processing. According to the present invention, the power distribution is selected by pushing at least a first mirror into the laser beam. The light beam always falls on only one side of the mirror, so that the mirror can be produced easily and economically.
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公开(公告)号:US20220063020A1
公开(公告)日:2022-03-03
申请号:US17001920
申请日:2020-08-25
申请人: II-VI DELAWARE, INC.
发明人: Axel Heinrici , Paul Sonntag , Patrick Kühl , Rutger Wevers
IPC分类号: B23K26/24 , G02B27/30 , G02B26/08 , H02N2/02 , H02K41/035 , B23K26/06 , B23K26/082 , B23K26/073
摘要: In one example, system includes a source for providing a laser beam and a collimator including a plurality of lenses positioned along a beam path of the laser beam. At least one lens of the plurality of the lenses is transversely movable relative to the laser beam path to induce angular movement or deflection of the laser beam. The collimator is positioned in the beam path and is structured such that the laser beam at the at least one lens has a reduced diameter relative to the diameter of the laser beam exiting the collimator. The systems disclosed herein may be used in connection with systems for laser cutting a component, laser machining a component, or laser welding or otherwise joining two or more components with a laser, amongst other variations.
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3.
公开(公告)号:US11112615B2
公开(公告)日:2021-09-07
申请号:US16840106
申请日:2020-04-03
申请人: II-VI Delaware Inc.
发明人: Axel Heinrici , Goran Bjelajac
摘要: The invention relates to a device and a method for generating a multiple spot during laser material processing. According to the present invention, the power distribution is selected by pushing at least a first mirror into the laser beam. The light beam always falls on only one side of the mirror, so that the mirror can be produced easily and economically.
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公开(公告)号:US20240261895A1
公开(公告)日:2024-08-08
申请号:US18428860
申请日:2024-01-31
申请人: II-VI Delaware, Inc.
发明人: Axel Heinrici , Rutger Wevers
CPC分类号: B23K26/0648 , B23K26/702
摘要: The present disclosure relates generally to a mounting structure for a movable lens in a laser processing system for preventing vibration during movement of the lens. The present disclosure provides a system for moving an optical element comprising a frame, at least one optical element, and a drive for moving the at least one optical element, where the at least one optical element and the drive are connected to the frame via first and second spring members, respectively.
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公开(公告)号:US20230226640A1
公开(公告)日:2023-07-20
申请号:US17579917
申请日:2022-01-20
申请人: II-VI Delaware, Inc.
发明人: Axel Heinrici
IPC分类号: B23K26/06 , G02B27/30 , B23K26/046
CPC分类号: B23K26/0648 , G02B27/30 , B23K26/046
摘要: A laser processing head directs laser energy along an optical axis from a fiber to perform brazing or welding operations. A collimating stage collimates a diverging beam of the laser energy from the fiber into a collimated beam, and a focusing stage focuses the collimated beam into a converging beam to a focus spot for the desired operation. At least one of the stages has a changeable effective focal length for zoom functionality. A freeform refractive optic can be positioned in at least one of the diverging and collimated beams. For example, a freeform refractive optic in a first position is placed out of the diverging beam. However, the freeform refractive optic in a second position placed in the diverging beam can field map or intensity map the diverging beam to produce the mapped diverging beam, which increases an image of the fiber tip to the collimating stage.
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公开(公告)号:US20220063017A1
公开(公告)日:2022-03-03
申请号:US17382647
申请日:2021-07-22
申请人: II-VI Delaware, Inc
发明人: Axel Heinrici , Paul Sonntag , Patrick Kühl , Rutger Wevers , Matthias Waschicek
IPC分类号: B23K26/06 , B23K26/082 , B23K26/26
摘要: A laser processing head for a laser beam uses actuators engaged with a delivery fiber end to deflect the fiber end relative to an optical axis. The laser beam from the fiber end is collimated by a collimator and is then focused by a focusing lens disposed in the head beyond the collimator to a focal point. The focal point of the laser beam is deflected from the optical axis in relation to the deflection of the fiber end. The fiber end and the actuators are housed in a sealed module. Deflection of the laser beam can be sensed by reflecting portion of the laser beam to a sensing element so a control system can monitor and control the fiber end's movement.
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