METHOD AND DEVICE FOR HOMOGENIZING THE TEMPERATURE OF A LASER BASE PLATE

    公开(公告)号:US20240047931A1

    公开(公告)日:2024-02-08

    申请号:US18257523

    申请日:2022-12-10

    申请人: LITILIT, UAB

    IPC分类号: H01S3/04 H01S3/02

    摘要: The invention relates to the field of laser technology, and methods and devices intended for homogenizing the temperature of a laser base plate, where optical component holders are attached to the laser base plate comprising a heat transfer medium. In order to reduce susceptibility of the laser base plate to local temperature differences, ensuring stable positions of the optical components and, consequently, the orientation of the optical paths, the material from which the laser base plate and optical component holders are made is stainless steel. Heat pipes are built into the laser base plate and have a significantly higher thermal conductivity than stainless steel, and their coefficient of thermal expansion is close to the coefficient of thermal expansion of stainless steel. The holders of the optical components are attached and adjusted with respect to each other to said laser base plate by laser spot welding.

    POSITIVE HIGH-VOLTAGE LASER HAVING SUPER-LONG DISCHARGE TUBE

    公开(公告)号:US20230402806A1

    公开(公告)日:2023-12-14

    申请号:US18256871

    申请日:2022-08-29

    发明人: Weiyuan YIN

    摘要: A positive high-voltage laser having a super-long discharge tube, including a gas storage tube having two ends respectively provided with a reflecting mirror and a light emitting surface; a water cooling tube in the gas storage tube; and a discharge tube inside the water cooling tube having two ends, each provided with an electrode. A liquid circulation space is between the discharge tube and the water cooling tube, and the water cooling tube extends outside the gas storage tube by water inlet and outlet tubes. A cathode is in a cathode chamber at the end of the discharge tube closest to the light emitting surface; a spiral gas return tube communicates with the cathode chamber; an anode circumscribes the outside of the water cooling tube at the other end of the discharge tube. The positive high-voltage laser can increase power with a limited length.

    LASER DEVICE AND METHOD FOR MANUFACTURING LASER DEVICE

    公开(公告)号:US20230318245A1

    公开(公告)日:2023-10-05

    申请号:US18022764

    申请日:2021-08-19

    摘要: Disclosed is a laser device includes: a rod-shaped laser medium extending in a first direction; a first light source unit including a first base and a plurality of excitation light sources; a second light source unit arranged side by side with the first light source unit in a second direction intersecting with the first direction, the second light source unit including a second base and a plurality of excitation light sources; and a holder supporting the laser medium, the first light source unit, and the second light source unit. At least one of the first base and the holder includes a first regulating part configured to regulate a position of the first base with respect to the holder, and at least one of the second base and the holder includes a second regulating part configured to regulate a position of the second base with respect to the holder.

    LASER OSCILLATOR
    9.
    发明申请
    LASER OSCILLATOR 审中-公开

    公开(公告)号:US20190109429A1

    公开(公告)日:2019-04-11

    申请号:US16132572

    申请日:2018-09-17

    申请人: FANUC CORPORATION

    发明人: Michinori MAEDA

    摘要: A laser oscillator having a condensation prevention mechanism capable of extending the life span of a light emitting device while maintaining cost effectiveness as compared to the conventional technique is provided. The laser oscillator includes: a laser beam generating unit; a heat exchanger; a coolant bypass circuit; a coolant circuit connecting these components; a housing storing these components; a coolant circulating unit that circulates a coolant to the laser beam generating unit, the heat exchanger, and the coolant bypass circuit with the aid of the coolant circuit; a first valve that adjusts a flow rate of the coolant supplied to the laser beam generating unit; a second valve that adjusts a flow rate of the coolant supplied to the heat exchanger; a third valve that adjusts the flow rate of the coolant supplied to the coolant bypass circuit; a dew point measuring unit that measures a dew point inside the housing; a temperature measuring unit that measures a coolant temperature; and a control unit that controls the first, second, and third valves on the basis of the dew point and the coolant temperature.