Controlling flicker caused by multiple light sources

    公开(公告)号:US10129937B1

    公开(公告)日:2018-11-13

    申请号:US15866961

    申请日:2018-01-10

    Abstract: Disclosed herein is a lighting device including a luminaire having a first light emitter configured to output image and a second light emitter configured to output illumination light. The first light emitter is oriented with the second light emitter such that an available output region of the second light emitter at least substantially overlaps an available output region of the first light emitter. The lighting device also includes a processing system coupled to a driver system, which is coupled to the luminaire. The processing system, via the driver system, is configured to operate the first light emitter to output the image and operate the second light emitter to output the illumination light; and during the operations of the first and light emitters to output a combined light via the substantial overlap, to control the output of at least one of the image or the illumination light to control flicker due to interaction of a portion of the image and a portion of the illumination light.

    USE OF VERY HIGH FREQUENCY SWITCHING POWER CONVERTERS FOR ALSO MODULATING LIGHT OUTPUT FROM SOLID STATE EMITTER TO COMMUNICATE DATA
    9.
    发明申请
    USE OF VERY HIGH FREQUENCY SWITCHING POWER CONVERTERS FOR ALSO MODULATING LIGHT OUTPUT FROM SOLID STATE EMITTER TO COMMUNICATE DATA 有权
    使用非常高频率的开关电源转换器,用于将固体发光器的调制光输出传送到通讯数据

    公开(公告)号:US20160099773A1

    公开(公告)日:2016-04-07

    申请号:US14508356

    申请日:2014-10-07

    Inventor: Rashmi Kumar Raj

    Abstract: An example of a power and modulation circuit utilizes a very high frequency switching power converter to supply drive current power to cause a solid state light source to emit light. The power converter is configured to convert power from a power source to direct current to supply via the output to the light source, at least in part by a switching function of the power converter at a very high frequency rate. The circuit, in such an example, also includes a control circuit coupled to be responsive to input data and control operation of the power converter so that the current output to drive the light source modulates the light emitted from the light source to also carry the input data.

    Abstract translation: 功率和调制电路的示例使用非常高频率的开关功率转换器来提供驱动电流功率以使固态光源发光。 功率转换器被配置为至少部分地通过以非常高的频率的功率转换器的开关功能将来自电源的功率转换为直流电流,以经由输出到光源。 在这种示例中,电路还包括控制电路,其被耦合以响应于输入数据和功率转换器的控制操作,使得驱动光源的电流输出调制从光源发射的光也携带输入 数据。

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