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631 条记录 (耗时 0.017 秒)

    Lighting apparatus and corresponding system, method and computer program product
    2.
    发明授权
    Lighting apparatus and corresponding system, method and computer program product 有权

    公开(公告)号：US11178745B2

    公开(公告)日：2021-11-16

    申请号：US17072049

    申请日：2020-10-16

    申请人： OSRAM GmbH

    发明人： Alberto Alfier ,  Renato Frison

    IPC分类号： H05B47/115 ,  H05B45/10 ,  H01S3/10 ,  H05B41/38

    摘要： A lighting apparatus, for example for applications in the show-business or entertainment sector, including: a light-radiation generator, for example a laser generator, configured for projecting a lighting beam towards a lighting space in a certain direction; control circuitry of the light-radiation generator configured for controlling emission of the lighting beam by the light-radiation generator; and processing circuitry configured for calculating a thermal retinal radiance ratio of the light-radiation generator as a function of a distance from the light-radiation generator in the aforesaid direction and for acting on the control circuitry of the light-radiation generator in order to control the lighting beam of the light-radiation generator as a function of the thermal retinal radiance ratio, with the aim of maintaining the aforesaid thermal retinal radiance ratio below unity starting from a certain value of distance from the light-radiation generator in the aforesaid direction.

    Lighting fixture control systems and methods
    3.
    发明授权
    Lighting fixture control systems and methods 有权

    公开(公告)号：US10694594B2

    公开(公告)日：2020-06-23

    申请号：US16154322

    申请日：2018-10-08

    申请人： ORION ENERGY SYSTEMS, INC.

    发明人： Neal R. Verfuerth ,  Daniel J. Czaja, Jr. ,  Michael J. Potts ,  Ryan M. Franzen ,  Eric A. Smasal

    IPC分类号： H05B41/38 ,  H05B47/16 ,  H05B47/19 ,  H05B47/105

    摘要： A system for controlling lighting includes a control module coupled to a driver, a light source coupled to the driver, a first sensor configured to cooperate with the control module to detect occupancy and control the power delivered to the light source according to a signal provided by the first sensor, and a second sensor configured to cooperate with the control module to detect ambient light and control the power delivered according to a signal provided by the second sensor. A GUI executing on a controller device wirelessly coupled to the control module communicates with the control module to configure the operation thereof, executes on a touch-sensitive display configured to facilitate user interaction with the controller, and creates one or more control groups. The GUI is also operable to control the driver to control the state of the light source. The control module is programmable to cause the driver to control the light source according to the detection by the first sensor of occupancy, turning it on upon detecting that an area is occupied and turning it off after a configurable delay period. The control module is programmable to cause the driver to control the light source according to the detection by the second sensor of ambient light. The system is configurable to include a switch to cause the light source to be turned on without regard to occupancy detected by the first sensor or ambient light detected by the second sensor.

    Flash generator for a flash tube
    5.
    发明授权
    Flash generator for a flash tube 有权

    公开(公告)号：US10349504B2

    公开(公告)日：2019-07-09

    申请号：US15500507

    申请日：2015-10-26

    申请人： PROFOTO AB

    发明人： Anton Falk ,  Michael Sundkvist

    IPC分类号： G03B7/17 ,  H05B41/30 ,  G03B15/05 ,  H05B41/38

    摘要： The present disclosure relates to a flash generator for providing power supply to a flash tube so that the flash tube rapidly provides a light output adapted to FP-sync, Flat Peak. The flash generator comprises a capacitor bank, an output and a switch configured to switch a current flow from the capacitor bank via the output to provide a variable power via the output. The flash generator further comprises a controller for controlling the switch, whereby by controlling the on time of the switch, the generator is operative to provide, during a time period of 100 to 2000 μs during a peak time period within the time period, an average power at least 4 times higher than the average power provided during the other time period within the time period, whereby the flash tube during the peak time period becomes fully ignited.

    Methods and systems for controlling an electrical load
    10.
    发明授权
    Methods and systems for controlling an electrical load 有权

    公开(公告)号：US10231319B2

    公开(公告)日：2019-03-12

    申请号：US15969255

    申请日：2018-05-02

    申请人： Lutron Electronics Co., Inc.

    发明人： Venkatesh Chitta ,  Russell L. MacAdam ,  Matthew R. Zartman

    IPC分类号： H05B41/298 ,  H05B41/30 ,  H05B41/36 ,  H05B41/39 ,  H05B33/08 ,  H05B41/392 ,  H05B41/38 ,  H05B37/02

    摘要： An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.