BIO-DIMMING LIGHTING SYSTEM
    1.
    发明申请

    公开(公告)号:WO2020152546A1

    公开(公告)日:2020-07-30

    申请号:PCT/IB2020/050319

    申请日:2020-01-16

    IPC分类号: H05B45/20 H05B45/30

    摘要: Lighting control systems are disclosed that have a plurality of current sensors and a microprocessor. A first current sensor in the plurality of current sensors measures a first current of a first LED channel, and a second current sensor measures a second current of a second LED channel. The microprocessor is configured to set a setpoint that defines a maximum current for a dimming profile of a lighting fixture, and control a biological light ratio according to the dimming profile. The ratio may be an M/P ratio of melanopic lux to photopic lux or an OPN5/OPN4 ratio of OPN5 lux to melanopic lux. The dimming profile correlates the ratio to a percentage of the maximum current.

    LIGHT EMITTING APPARATUS WITH MELANOPIC EMISSION SPECTRUM

    公开(公告)号:WO2019165310A1

    公开(公告)日:2019-08-29

    申请号:PCT/US2019/019298

    申请日:2019-02-22

    摘要: A light emitting diode (LED) with a melanopic emission spectrum can comprise a primary light source and a phosphor. The primary light source can comprise an emission spectrum comprising a first peak centered at a wavelength from 480 nm to 500 nm. The phosphor, when excited, can comprise an emission spectrum with a second peak centered at a wavelength from 640 nm to 750 nm, and the intensity of the first peak is greater than the intensity of the second peak. A light emitting apparatus can comprise a first LED with a traditional white light emission spectrum, and a second LED with a melanopic emission spectrum. The light emitted from the apparatus can comprise chromaticity coordinates, in the CIE 1931 color space diagram using the 1964 10° Supplementary Standard Observer, that are within a one-step MacAdam ellipse from the black body locus with chromaticity coordinate x from 0.34 to 0.45.

    COLOR SEPARATION LIGHTING DEVICES
    3.
    发明申请

    公开(公告)号:WO2020212775A1

    公开(公告)日:2020-10-22

    申请号:PCT/IB2020/052642

    申请日:2020-03-20

    摘要: Lighting apparatuses include an enclosure around first and second light engines. The enclosure has a diffuser over first, second and third regions. The first and second regions are separated by the third region; a first light spectrum is emitted from the first region; a second light spectrum is emitted from the second region; and a mixture of the spectrums is emitted from the third region. In some embodiments, the first spectrum has a CCT ≥ 7000K; the second spectrum has a CCT ≤ 6500K. In some embodiments, the first spectrum has a first CCT ≥ 3500K; the second spectrum has a second CCT ≤ 6500K; the second CCT