Swirler for laser-sustained plasma light source with reverse vortex flow

    公开(公告)号:US11978620B2

    公开(公告)日:2024-05-07

    申请号:US17880455

    申请日:2022-08-03

    申请人: KLA Corporation

    摘要: A plasma lamp for use in a laser-sustained plasma (LSP) light source is disclosed. The plasma lamp includes a gas containment structure for containing a gas, a gas seal positioned at a base of the gas containment structure, a gas inlet, and a gas outlet. The plasma lamp includes a gas swirler including a set of nozzles configured to generate a vortex gas flow and a swirler shaft including an inlet channel for delivering the gas from the gas inlet to the nozzles and an outlet channel for delivering the gas from the gas containment structure to the gas outlet. The plasma lamp includes a distributor including one or more plenums to distribute the gas from the gas inlet into the swirler. The plasma lamp may also include a deflector fluidically coupled to the swirler shaft and extending above the set of nozzles and configured to direct gas flow around the swirler.

    UV EMITTER MODULE AND USE THEREOF

    公开(公告)号:US20230139861A1

    公开(公告)日:2023-05-04

    申请号:US18089990

    申请日:2022-12-28

    IPC分类号: A61L2/10 H01J61/52 H01J61/72

    摘要: A UV lamp module for the ultraviolet irradiation of a substrate includes a lamp arrangement, a waterproof housing, and first and second airflow zones. The lamp arrangement includes multiple low-pressure mercury lamps each having a longitudinal axis. The waterproof housing surrounds the lamp arrangement and has a bottom side, a top side and at least two side walls connecting the bottom side and the top side to each other, and a beam exit opening on the bottom side which is closed by a beam exit window. The first airflow zone is formed in the housing and has an air supply duct with at least one air-guide for the supply of cooling air to the lamp arrangement. The second airflow zone is separated from the first airflow zone, and is formed in the housing and has an exhaust air duct for the discharge of heated cooling air. When viewed in a cross-section through the housing perpendicular to the longitudinal axes of the low-pressure mercury lamps and in a viewing direction from the bottom side to the top side, the beam exit window, the lamp arrangement and the airflow zones are arranged one after the other.

    READILY INTERCHANGEABLE LIGHT MODIFIER FOR A UV C FIXTURE

    公开(公告)号:US20230041901A1

    公开(公告)日:2023-02-09

    申请号:US17964796

    申请日:2022-10-12

    申请人: Lumenlabs LLC

    摘要: A UV C light source including a UV C bulb adapted to emit and project UV C light at a wavelength and an interchangeable UV C light modifier through which at least a portion of the UV C light emitted from said UV C bulb is projected. The UV C light modifier may be reflective, such as a reflector, perforated, holographic material, or mechanical modifier such as a barn door. The UV C light modifier might produce a narrow pattern, circular pattern, flat pattern, or asymmetrical pattern or other desired geometric pattern, or upper air pattern. The UV C light modifier is easily removed and interchanged or may be selectable such as by receiving a base UV C fixture including the UV C light source of the present invention and selecting a desired light modifier.

    Discharge lamp, discharge lamp electrode, and discharge lamp electrode manufacturing method

    公开(公告)号:US11482406B2

    公开(公告)日:2022-10-25

    申请号:US17456273

    申请日:2021-11-23

    发明人: Takashi Yuki

    摘要: At least one of the electrodes of a discharge lamp, including at an interior of a main body of the electrode: a heat-transmitting substance of the melting point lower than that of a material which makes up the main body; and a regulating body that is made up of a material of the melting point higher than that of the heat-transmitting substance, that includes a blade which extends in the axial direction and in a radial direction perpendicular to the axial direction, and that regulates convection of the heat-transmitting substance. Surface roughness Rz of at least one of a region which is on an inner wall face of the main body and with which the regulating body makes contact and a region which is on a surface of the regulating body and with which the inner wall face makes contact is not greater than 1.52 μm.