An LED exterior luminaire comprising light-emitting diodes (LEDs) with a circadian-adjustable light output mode for its medical safety comprises at least two switchable LED chip chains I and III, wherein chain I comprising at least one LED chip emitting orange light from a wavelength range of 580 nm to 610 nm and at least one LED chip emitting red light from a wavelength range of 610 nm to 700 nm, chain III comprising at least one blue LED chip overlaid with a luminophore emitting a continuous band spectrum of visible light from a wavelength range of 440 nm to 700 nm and a correlated color temperature CCT of 2200 to 4200 K, wherein chains I and III are each separately connected to a power source via a dimming ballast that regulates the proportion of input current to each chain separately.

An LED exterior luminaire comprising light-emitting diodes (LEDs) with a circadian-adjustable light output mode for its medical safety comprises at least two switchable LED chip chains I and III, wherein chain I comprising at least one LED chip emitting orange light from a wavelength range of 580 nm to 610 nm and at least one LED chip emitting red light from a wavelength range of 610 nm to 700 nm, chain III comprising at least one blue LED chip overlaid with a luminophore emitting a continuous band spectrum of visible light from a wavelength range of 440 nm to 700 nm and a correlated color temperature CCT of 2200 to 4200 K, wherein chains I and III are each separately connected to a power source via a dimming ballast that regulates the proportion of input current to each chain separately.

Embodiments of the present invention include a lighting fixture(s), a computer program product and a computer-implemented method that include program code executed by a processor(s) that obtains a request to implement a specified lighting pattern in the lighting fixture(s). Each lighting fixture includes effect lighting communicatively coupled to the processor(s) and functional lighting (oriented to illuminate a surface below the lighting fixture) communicatively coupled to the processor(s). The program code identifies the specified lighting pattern in a memory communicatively coupled to the processor(s), which includes a sequence for illuminating a portion of the effect lighting elements. The processor(s) executes the specified lighting pattern in the lighting fixture(s).

Lighting module for a motor vehicle comprising a matrix light source grouping together a plurality of elementary light sources, and a control module for a motor vehicle. Method for controlling the matrix source of said module, noteworthy in that it allows a default lighting setpoint to be generated.

In an LED driving device, a DC-DC controller performs control such that the voltage at an LED terminal remains equal to a reference voltage, and a reference voltage generator generates the reference voltage such that it decreases as the set value of the LED current set by an LED current setter decreases.

In an LED driving device, a DC-DC controller performs control such that the voltage at an LED terminal remains equal to a reference voltage, and a reference voltage generator generates the reference voltage such that it decreases as the set value of the LED current set by an LED current setter decreases.

This application discloses a microphone that includes a handle portion, a control portion, and a microphone head that are connected in sequence. The control portion includes a first circuit board and multiple light-emitting assemblies arranged along a perimeter of the control portion. The first circuit board is electrically connected to the multiple light-emitting assemblies for controlling the multiple light-emitting assemblies to emit light in a preset light-emitting mode. In the solution of this application, multiple light-emitting assemblies are arranged in the control portion, so that when in use, the color of the light and the brightness of the light-emitting assembly can be automatically changed according to the microphone song or through a control button, so that the multiple light-emitting assemblies of the microphone can illuminate in a preset manner.

This application discloses a microphone that includes a handle portion, a control portion, and a microphone head that are connected in sequence. The control portion includes a first circuit board and multiple light-emitting assemblies arranged along a perimeter of the control portion. The first circuit board is electrically connected to the multiple light-emitting assemblies for controlling the multiple light-emitting assemblies to emit light in a preset light-emitting mode. In the solution of this application, multiple light-emitting assemblies are arranged in the control portion, so that when in use, the color of the light and the brightness of the light-emitting assembly can be automatically changed according to the microphone song or through a control button, so that the multiple light-emitting assemblies of the microphone can illuminate in a preset manner.

Disclosed embodiments provide a lighting apparatus with microwave induction. The microwave induction lamp emits electromagnetic waves through an antenna, such as a planar antenna. When a moving object enters the electromagnetic wave environment, the waveform is reflected and folded back and received by a microwave transceiver via the antenna and serves as a trigger signal. When the antenna receives the feedback waveform, a microcontroller-operated circuit activates a lighting device (e.g., a bank of light emitting diodes (LEDs)) in response to detecting the trigger signal. Disclosed embodiments use the trigger signal to turn the lighting device (lamps) on and off and further include a delay function, via a timer, to keep the lighting device activated for a predetermined period after detecting the trigger signal. In this way, a safe and efficient automatically activated lighting apparatus is provided.

A network bridge for a lighting system is disclosed. For one example, a lighting system includes an inter-integrated circuit (I.sup.2C) cable, a light emitting diode (LED) driver, and wireless module coupled to the LED driver by way of the I.sup.2C cable. The LED driver is configured to control one or more LED light sources. The wireless module includes an antenna configured to receive a message according to any number of a plurality of wireless communication protocols. The wireless module is configured to process the message into an I.sup.2C data frame and to deliver the I.sup.2C data frame to the LED driver via the I.sup.2C cable, and the LED driver is configured to control a lighting application or one or more LED light sources based on an I.sup.2C data frame. The message can be a wireless communication protocol message such as a ZigBee message, Bluetooth message or WiFi message. The wireless module includes bridge circuitry configured to process the Zigbee message, Bluetooth message or WiFi message into an I.sup.2C data frame and to deliver the I.sup.2C data frame to the LED driver via the I.sup.2C cable using a serial data communication protocol.