LIGHTING SYSTEM, LIGHTING SYSTEM CONTROL METHOD, AND PROGRAM

    公开(公告)号:EP4444044A1

    公开(公告)日:2024-10-09

    申请号:EP22898473.8

    申请日:2022-11-16

    发明人: OKAMOTO Tetsuya

    摘要: An illumination system includes light sources, a substrate, wavelength converters, a light guide, and a controller. The light sources include a first light source and a second light source. The wavelength converters are on the substrate and include a first wavelength converter and a second wavelength converter. The light guide guides fluorescence emitted from the wavelength converters. When causing each light source to repeat emission and non-emission of excitation light in constant cycles, in an operation period of one cycle, the controller causes the second light source to emit no excitation light toward the second wavelength converter for at least a portion of a first emission period during which the first light source emits excitation light toward the first wavelength converter, and causes the first light source to emit no excitation light toward the first wavelength converter for at least a portion of a second emission period during which the second light source emits excitation light toward the second wavelength converter.

    LIGHT SOURCE DEVICE, DIELECTRIC BARRIER DISCHARGE LAMP LIGHTING CIRCUIT, AND DIELECTRIC BARRIER DISCHARGE LAMP LIGHTING METHOD

    公开(公告)号:EP4373213A1

    公开(公告)日:2024-05-22

    申请号:EP22841694.7

    申请日:2022-03-10

    IPC分类号: H05B41/24 A61L9/20 H05B47/16

    摘要: A light source device that has achieved power saving and improved reliability without an increase in size in the entirety of the device, and a dielectric barrier discharge lamp lighting circuit and a dielectric barrier discharge lamp lighting method for achieving power saving and improved reliability without an increase in size of the entirety of the device are provided.
    The light source device includes: a lighting circuit that includes a direct-current power source, a transformer, and a switching element, and generates electromotive force in a secondary winding of the transformer in accordance with switching of an ON state and an OFF state of the switching element; a dielectric barrier discharge lamp that is connected to the secondary winding of the transformer; and a controller that performs ON/OFF control on the switching element. The controller performs: a starting mode for repeating ON/OFF control on the switching element at a predetermined frequency at a time of starting; and a steady-state operation mode for alternately performing first control and second control after the dielectric barrier discharge lamp has been started, the first control being performed to repeat ON/OFF control on the switching element at the predetermined frequency, the second control being performed to maintain the switching element in the OFF state.

    VORRICHTUNG ZUR EINSTELLUNG VON LICHT MEHRERER BELEUCHTUNGSVORRICHTUNGEN

    公开(公告)号:EP4366471A1

    公开(公告)日:2024-05-08

    申请号:EP22205643.4

    申请日:2022-11-04

    申请人: Domus Line Srl

    摘要: Die Erfindung ist eine Vorrichtung (2), die zur Einstellung von Licht mehrerer Beleuchtungsvorrichtungen (4) ausgebildet ist. Die Vorrichtung weist einen Signalempfänger (6) zum Empfang unterschiedlicher Eingangssignale auf. Außerdem weist die Vorrichtung eine Mehrzahl von Ansteuerausgängen (8) auf, die jeweils zur Verbindung der Vorrichtung (2) mit zumindest einer der Beleuchtungsvorrichtungen ausgebildet sind. Außerdem weist die Vorrichtung eine mit dem Signalempfänger (6) und den Ansteuerausgängen (8) gekoppelte und zur Ansteuerung der Beleuchtungsvorrichtungen (4) dienende Steuereinrichtung (10) auf. Die Steuereinrichtung (10) ist dazu ausgebildet, mit unterschiedlichen Ansteuerausgängen (8) verbundene Beleuchtungsvorrichtungen (4) in Abhängigkeit von einem ersten Eingangssignal automatisch zeitversetzt einzuschalten und/oder in Abhängigkeit von einem zweiten Eingangssignal automatisch zeitversetzt auszugeschalten.