Patent classifications
H05B37/00
Configurable lighting system
Apparatus, systems, and methods for controlling light output in a lighting system based on defined light profiles are provided. In one example implementation, a light fixture can include a first light emitting diode (LED) array having one or more LED light sources and a second LED array having one or more LED light sources. The light fixture can include a power circuit configured to provide power to the first LED array and the second LED array according to a power distribution among the first LED array and the second LED array. The light fixture can include one or more control devices configured to control the power circuit to adjust the power distribution among the first LED array and the second LED array based at least in part on a signal indicative of a real time clock and a defined light profile associated with a user identified to be present in a space illuminated by the light fixture.
Dimming module, dimming method and lighting device
A dimming module includes a triggering circuit, a control signal generating circuit, a voltage converting circuit, and a linear driving circuit. The triggering circuit is configured to control a trigger delay angle of an AC input voltage according to a dimming command, in order to output a first voltage signal correspondingly. The control signal generating circuit is configured to output a control voltage according to the first voltage signal. The voltage converting circuit is configured to output a DC operating voltage having an operating level according to the first voltage signal, and output the DC operating voltage to a lighting module, in which the lighting module includes a light-emitting diode. The linear driving circuit is configured to drive the lighting module according to the control voltage.
Dimmable LED light fixture maintaining brightness during color temperature change
An LED light fixture, in the form of lamps or luminaires, is comprised on a plurality of LED lights producing bright white or warm light and a plurality of color LED lights producing light of a visibly different color. The fixture includes control circuitry for receiving an input voltage signal from a dimmer switch wherein when the dimmer switch reduces the input voltage to the LED light fixture within a top range setting of the dimmer switch, the brightness of the light is maintained while the color Kelvin temperature of the light spectrum is reduced. If the dimmer switch is increased in the top range, the color temperature increases. This is achieved by increasing the frequency of a reduced input voltage signal during a reduction of the dimmer switch in the top range thereof to supply full driver current to the white or warm light LED's while reducing the driver current to the color LED's. When the dimmer switch is operated below the top range both drive currents to the while and color LED's is reduced to provide a warm relaxing light spectrum but with substantially high luminosity/brightness.
LED power supply device
An LED power supply device includes a primary winding, a secondary winding, a charge-pump capacitor, a bridge rectifier circuit, a unidirectional controlled switch, and an output capacitor. The secondary winding includes a first terminal and a second terminal and configured to provide a secondary current in response to a primary current flowing through the primary winding. A first terminal of the charge-pump capacitor is coupled to the second terminal of the secondary winding. The bridge rectifier circuit is coupled to the first terminal of the secondary winding and a second terminal of the charge-pump capacitor. The unidirectional controlled switch is reversely coupled to one of multiple diodes in the bridge rectifier circuit, and configured to be on or off according to a control voltage selectively. The output capacitor is coupled to the bridge rectifier circuit and configured to provide an output voltage according to the secondary current.
Photographic lighting system and method
Photographic lighting devices, systems, and methods having multiple electrical energy storage/discharge (EESD) elements and/or multiple light sources in a single photographic lighting device to perform one or more photographic lighting effects. Multiple EESD elements and multiple light sources can be configured to have two separate light emissions occur in a single image acquisition window. In one exemplary aspect, independent control of one or more light sources connected to a first EESD bank and another one or more light sources connected to a second EESD bank, such as via control circuitry, may be utilized in producing various lighting effects.
HELPS—Hybrid Electric Light Pole System
A Hybrid Electric Light Pole System (HELPS) generating energy from wind and solar and collecting it in storage or transferring it to the grid and, supplying uninterrupted power to light bulb(s) (107) is disclosed. The system comprises a monopole (106) and a wind turbine (101) attached on the top of the pole, two leaves (103) symmetrically attached to the pole with C shape branches (105), where each C shape (105) crosses the pole (106) at two support points. The top surface of the leaves is designed to handle flexible solar panel(s) (104). Some embodiments may be equipped with additional rigid solar panel(s) (102) if required. The bottom surface of the leaves is designed to handle the light bulb(s) (107). The generatorwind/solar and the loadlightbulbs are wired to the controller (109), capable of maintaining battery (110) charge and turning ON and OFF the lights based on the preset parameters.
Control circuit and control method for detecting configuration channel line and driving light emitting unit accordingly
A control circuit includes a first control unit, a power unit, a driver unit, a second control unit, a power source, a first switch, a pull-up element and a second switch. The first control unit is used to detect whether a configuration channel line has a predetermined divided voltage and generate a control signal accordingly. The power unit is coupled to the configuration channel line and a power line for supplying power to the driver unit. The driver unit is used to enable or disable a light emitting unit according to the control signal. The second control unit is used to detect whether the configuration channel line has the predetermined divided voltage and control the first switch and the second switch accordingly. The first switch is coupled between a power source and the configuration channel line. The second switch is coupled between the pull-up element and the configuration channel line.
App based free setting method for setting operating parameter of security light
A lighting control system using an APP based software technology to operate on line free settings of various operating parameters for a lighting device including setting of manual override timer, setting of detection range of a motion sensor, setting of light-on duration activated by a motion sensor, setting of light intensities for various illumination modes and setting of light color temperature. The technology enables a user to set an operating parameter within a maximum capacity of a designed circuitry on an on line computing basis according to his or her lifestyle by operating an application program designed and loaded in a mobile phone. The technology of the present invention is applicable to a single level security light, a two level security light or a multi-level/life style security light with optional lighting source being a LED load, an incandescent load or any other electrically energize-able light emitting materials.
Occupancy and non-occupancy detection in the lighting system
Disclosed herein is a lighting system including a detector, which is configure to obtain an indicator data of a RF signal. The detector compares the indicator data with a baseline indicator data to generate a difference value and determines a rate of change from the indicator data. The detector also determines a data metric based on the rate of change and the difference value and compares the data metric with a transition threshold to detect one of an occupancy condition or a non-occupancy condition in the area. The lighting system also includes a light source, which is controlled in response to the detected one of the occupancy condition or the non-occupancy condition in the area.
EMBEDDED MAGNETIC FIELD INDICATOR ARRAY FOR DISPLAY OF UNIFOMITY OR BOUNDARY OF MAGANETIC FIELD
Methods and apparatus relating to embedded magnetic field indicator array for display of uniformity or boundary of magnetic field are described. In an embodiment, a diode is coupled to a coil in series. The coil receives wireless energy from a wireless power transmitter and generates an electrical current in response to the receipt of the wireless energy to cause the diode to emit light. The coil is to be formed by at least two coil loops (which may be spiral or overlapping). Other embodiments are also disclosed and claimed.