A color temperature control method in the present disclosure includes: obtaining color coordinates and illuminance of each monochromatic lamp, and obtaining, based on the illuminance and an illuminance proportion of a color temperature, initial illuminance data of the monochromatic lamp at a current color temperature; calculating a coordinate difference between target color coordinates and mixed color coordinates obtained by performing illuminance mixing on the initial illuminance data; when the coordinate difference is within a first difference range, calculating illuminance changes of R and B based on the mixed color coordinates, the target color coordinates, correction coordinates of R, and correction coordinates of B; and obtaining latest channel values of R and B based on the illuminance changes of R and B, and regulating, based on the latest channel values, the color temperature of each monochromatic lamp on which color mixing is performed.

A color temperature control method in the present disclosure includes: obtaining color coordinates and illuminance of each monochromatic lamp, and obtaining, based on the illuminance and an illuminance proportion of a color temperature, initial illuminance data of the monochromatic lamp at a current color temperature; calculating a coordinate difference between target color coordinates and mixed color coordinates obtained by performing illuminance mixing on the initial illuminance data; when the coordinate difference is within a first difference range, calculating illuminance changes of R and B based on the mixed color coordinates, the target color coordinates, correction coordinates of R, and correction coordinates of B; and obtaining latest channel values of R and B based on the illuminance changes of R and B, and regulating, based on the latest channel values, the color temperature of each monochromatic lamp on which color mixing is performed.

A magnetic induction circuit, a magnetic-controlled switch circuit, a magnetic-controlled device and a magnetic-controlled lamp. The magnetic induction circuit includes a magnetic induction module, a voltage comparison module and a voltage output module. The magnetic induction module is configured to sense an external magnetic field to generate a first voltage signal. The voltage comparison module is configured to receive the first voltage signal, and output a second voltage signal. The voltage output module is configured to process the second voltage signal and output a third voltage signal.

A control method of an appliance, including: the appliance includes a first unit that includes a first lamp, a first cavity, a first door and a first sensor; a second unit that includes a second lamp, a second cavity, a second door and a second sensor; and a controller that controls operations of the first unit and the second unit, includes sensing vibrations generated in any one of the first unit or the second unit by the first sensor and the second sensor; determining whether the sensed vibrations are caused by a knock, and when determining that the sensed vibrations are caused by a knock using the first sensor and the second sensor, transferring a knock-on signal to the controller; and comparing the knock-on signals received from the first sensor and the second sensor and determining which of the first unit or the second unit is given the knock by the controller, and outputting a lamp-on output signal to the first unit or the second unit in which the knock is generated by the controller.

A control method of an appliance, including: the appliance includes a first unit that includes a first lamp, a first cavity, a first door and a first sensor; a second unit that includes a second lamp, a second cavity, a second door and a second sensor; and a controller that controls operations of the first unit and the second unit, includes sensing vibrations generated in any one of the first unit or the second unit by the first sensor and the second sensor; determining whether the sensed vibrations are caused by a knock, and when determining that the sensed vibrations are caused by a knock using the first sensor and the second sensor, transferring a knock-on signal to the controller; and comparing the knock-on signals received from the first sensor and the second sensor and determining which of the first unit or the second unit is given the knock by the controller, and outputting a lamp-on output signal to the first unit or the second unit in which the knock is generated by the controller.

A communication module includes a laser driving unit (LDU) and one or more multifunction illumination units. The one or more multifunction illumination units are be coupled to the LDU with an electrical connection and configured to transmit both electrical power and data.

An information processing device includes a picture image inputter configured to acquire a picture image imaged by a camera and at least one processor configured to execute a program stored in a memory. The at least one processor detects, from the picture image acquired by the picture image inputter, light emitted by a light-emission device, acquires, based on brightness of the detected light emitted by the light-emission device, set brightness information indicating an appropriate brightness for light to be emitted by the light-emission device, and transmits the acquired set brightness information to the light-emission device.

A light system monitors an area of interest for exposure to radiant energy provided by an operating room light head. At least one operating parameter of the light head is obtained, and based on the at least one operating parameter it is determined if the area of interest has been or will be exposed to radiant energy exceeding a prescribed threshold over a prescribed time period. Based on the determination, the system at least one of automatically adjusts an operating setting of the at least one light head or generates a warning of possible overexposure to radiant energy in the area of interest.

A light system monitors an area of interest for exposure to radiant energy provided by an operating room light head. At least one operating parameter of the light head is obtained, and based on the at least one operating parameter it is determined if the area of interest has been or will be exposed to radiant energy exceeding a prescribed threshold over a prescribed time period. Based on the determination, the system at least one of automatically adjusts an operating setting of the at least one light head or generates a warning of possible overexposure to radiant energy in the area of interest.

A lighting device for a vehicle controls an emission intensity of each of a plurality of light emission units. The lighting device is configured to execute first control of controlling an irradiation area in accordance with a traveling direction of a vehicle, second control of controlling the irradiation area so that a degree of irradiation of light to a position of an object is reduced, and third control of controlling the irradiation area so that the degree of irradiation of the light to a position of a reflection object is reduced. The lighting device selects, as a final target value, a minimum value of a target value of an emission intensity for the first control, a target value of an emission intensity for the second control, and a target value of an emission intensity for the third control.