DRIVER CIRCUIT AND METHOD FOR A SEMICONDUCTOR LASER

    公开(公告)号:US20240243547A1

    公开(公告)日:2024-07-18

    申请号:US18409324

    申请日:2024-01-10

    申请人: Streamlight, Inc.

    发明人: Jon C. Zeisler

    IPC分类号: H01S5/042

    CPC分类号: H01S5/0428

    摘要: A driver circuit may comprise: a power control converts input power to an output voltage; a high frequency switch provides short duration pulses of output voltage causing a pulsed load current to flow through a load; a current sensor generates a signal representative of the pulsed load current; a sample and hold circuit samples the signal representative of the pulsed load current in synchronism with the high frequency switch and holds the sampled signal value; and a controller responds to the sampled signal value and applies control signals to the power control to produce the desired output voltage and to the high frequency switch and the sample and hold circuit to control the pulsed load current to a predetermined value. A corresponding method and an efficiency improver are disclosed. The load may include: a semiconductor laser diode (e.g., a green or blue semiconductor laser diode), or a light emitting diode.

    Portable and/or mountable light having an adjustable laser aiming light

    公开(公告)号:US10697623B2

    公开(公告)日:2020-06-30

    申请号:US16413124

    申请日:2019-05-15

    申请人: Streamlight, Inc.

    摘要: A light comprises: a light body and a laser light source supported by the light body; and a laser light source adjustment arrangement having two adjusting screws at an acute angle to each other. The two adjusting screws bear against the laser light source for adjusting, e.g., the azimuth and elevation of the laser light produced thereby. Alternatively and/or additionally, a tail cap assembly may include a housing shell defining one or more cantilevered supports and a resilient material sealing the housing shell while leaving the actuators flexibly cantilevered. Alternatively and/or additionally, the light may include a mode selecting face cap that is rotatable on the light body for selecting operating modes, including OFF.

    Portable and/or mountable light
    10.
    发明授权

    公开(公告)号:US10344959B2

    公开(公告)日:2019-07-09

    申请号:US15817986

    申请日:2017-11-20

    申请人: Streamlight, Inc.

    摘要: A light comprises: a light body and a light source supported by the light body; and a tail cap assembly including one or more actuators configured for actuating one or more electrical switch contacts internal to the light body for energizing the light source. The tail cap assembly may include a housing shell defining one or more cantilevered supports extending from the housing shell with the one or more actuators at respective ends thereof. The tail cap assembly may further include a resilient material for sealing the housing shell while leaving the actuators flexibly cantilevered. Alternatively and/or additionally, the light may include a mode selecting face cap that is rotatable on the light body for selecting operating modes, including OFF, and or a laser light source having two adjusting screws at an acute angle to each other.