An automatic sensing system includes at least one LED lamp, and at least one sensing control device. Each of at least one LED lamp includes at least three operation modes. The three operation modes includes a closing mode, a low light mode, and a fill light mode. The sensing control device includes an illumination detecting module, a pyroelectric sensing module, a signal processing module, and a lamp control module. The signal processing module is configured for processing the signal data output from the pyroelectric sensing module based on the signal data detected by the illumination detecting module and outputting a control signal. The lamp control module is configured for controlling all of the LED lamps to work in one of the three operation modes so as to make any one of the at least one sensing control device to control all of the LED lamps to work. The invention further includes an automatic sensing control method for LED lighting.

Systems and methods of adjusting a correlated color temperature (CCT) of a color-tunable light source based on one or more luminosity (lux) sensors, and without a CCT sensor, comprise receiving, at a controller, one or more signals from one or more lux sensors, the one or more signals representative of a luminous flux of natural light; determining, with the controller, a CCT of the natural light based on, at least in part, the luminous flux of the natural light; and transmitting an output signal from the controller based, at least in part, on the determined CCT of the natural light, the output signal configured to control the CCT of the color-tunable light source.

A control device for power delivered to electrical loads in a load control system via respective load control devices may comprise a programming user interface for programming the operation of the load control system. The control device may be configured to select one or more load control devices in response to successive actuations of a programming button of the programming interface. The control device may be configured to controllably illuminate visual indicators of the programming interface to indicate which of the load control devices is selected in response to successive actuations of the programming button. The control device may transmit programming information to the load control devices. The programming information may determine which of the load control devices are responsive to a digital message transmitted on the digital communication link.

Disclosed are a method and a device for adjusting the display brightness of a screen, and an electronic apparatus, wherein the method for adjusting the display brightness of the screen comprising: detecting a light intensity condition of the screen within a visible range; and adjusting the display brightness of the screen according to the detected light intensity condition of the screen within the visible range.

A method of utilizing a light replication luminaire to match the spectral characteristics of light that is output from the luminaire to the spectral characteristics of a target light spectrum is provided. In one example, the method permits the user to assign a weight to one or more characteristics of the target light spectrum to be replicated. A best approximation of the target light spectrum is then determined, taking into account the weight assigned to each characteristic. In another example, the target light spectrum is provided to the luminaire by the user through the specification of various characteristics of the target light spectrum.

The present invention provides a headlamp capable of producing different light beams and fitted with a dynamic control mechanism for controlling the brightness minimizing light interference in all situations. The lamp comprises a light source with LED-type diodes; means for controlling the brightness and/or the geometry of the light beam; capturing means for generating an electrical signal representative of the reflected light intensity of the area illuminated by said light beam onto an illuminated object; and a control unit for generating control signals from the information generated by said capture system. The lamp has capturing means includes a focal system having a variable field under control of the control unit. Preferably, the capturing means includes at least two sensors with fixed focal length or, alternatively, a single sensor may be combined with a single controllable focal system electrically.

A luminaire can comprise a system that automatically adjusts light output from the luminaire to control light level in an illuminated area. The system can increase light output if the light level in the area falls below a target light level or decrease light output if the light level in the area rises above the target. For example, when the area is illuminated by a combination of sunlight and luminaire light, the light level can be maintained at the target level by gradually decreasing light output as the sunlight contribution increases in the morning and by gradually increasing light output as the sunlight contribution decreases in the evening. The system adjustments can take into consideration whether the light level is offset from the target due to a change in the target or a short-term fluctuation that may be due to a cloud temporarily blocking the sun.

An electronic cigarette and electronic cigarette light emission control method. The electronic cigarette comprises: at least one touch sensor (2), a microprocessor (1), and a light-emitting module (3). The control method comprises: when a user touches the touch sensor (2), the touch sensor (2) is triggered to generate an electric signal and transmits same to the microprocessor (1); the microprocessor (1) controls the light-emitting module to emit a light on the basis of the electric signal transmitted by the touch sensor (2). The electronic cigarette light emission control method facilitates the user to find and use the electronic cigarette in the dark, illumination with the light emitted by the electronic cigarette facilitates the user to walk in the dark, additionally, it facilitates the user to learn the power level of the electronic cigarette, while power saving is allowed by adjusting the intensity of light emission from strong to weak.

An LED based light assembly and lighting system is disclosed. The lighting system includes at least one light assembly comprising a plurality of LED chips, a controller and a power supply module. The controller is configured to receive an input signal and to provide an output control signal for controlling power to the at least one light assembly. The power supply module is configured to receive a standard voltage and current signal and to provide a power signal to the at least one light assembly to power the at least one light assembly in response to the control signal.