Patent classifications
H05B39/00
LED tube lamp
An LED tube lamp comprises a plurality of LED light sources, two end caps, a lamp tube, and an LED light strip. The lamp tube extends in a first direction along a length of the lamp tube, and has two ends respectively sleeved to the end caps. The LED light strip is disposed inside the lamp tube, and the LED light sources are on the LED light strip. Each end cap comprises an electrically insulating tube and a magnetic metal member. The magnetic metal member is fixedly on an inner circumferential surface of the electrically insulating tube and interposed between the electrically insulating tube and the end of the lamp tube. The LED tube lamp further comprises a hot melt adhesive on the inner surface of the magnetic metal member and adhered to the outer peripheral surface of the end of the lamp tube.
Commissioning mechanism for creating functional wireless lighting groups
An apparatus for creating functional lighting groups is provided. The apparatus includes a commissioning device and a gateway. The commissioning device is configured to identify, locate, and record a plurality of wireless devices during commissioning of the plurality of wireless devices, the plurality of wireless devices having a common circuit and legacy line voltage switch, and is configured to direct the plurality of wireless devices over a wireless network to enter a grouping mode and to send messages indicating that they have been power cycled by the legacy line voltage switch. The gateway is coupled to the wireless network, and is configured to receive the messages and to create a functional lighting group including the plurality of wireless devices.
Grouping of wireless devices during commissioning
An apparatus for creating functional lighting groups is provided. The apparatus includes a plurality of wireless devices and a gateway. The plurality of wireless devices has a common circuit and legacy line voltage switch, and is configured to enter a grouping mode responsive to commissioning commands sent over a wireless network, and is configured to send messages over the wireless network indicating that they have been power cycled by a legacy line voltage switch. The gateway is coupled to the plurality of wireless devices over the wireless network, and is configured to receive the messages, and is configured to create a functional lighting group comprising the plurality of wireless devices.
Light-emitting diode lighting apparatus
A lighting apparatus using light emitting diodes is disclosed. A plurality of light-emitting groups are connected to each other in series at an output terminal of a rectification unit. Current diodes as current sources are branched from a node between the light-emitting groups. Current values set in the current diodes are set according to the amount of current flowing into the light-emitting groups. Therethrough, the amount of current flowing in each light-emitting group can be determined.
LED tube lamp
An LED tube lamp is provided herein, which implements the safety function for protecting the user from electric shock since it conducts only when both ends thereof have been correctly installed into a lamp socket. The LED tube lamp includes an installation detection module configured in the LED tube lamp to detect an installation state between the LED tube lamp and the lamp socket. The installation detection module includes: a detection pulse generating module, configured to generate a first pulse signal; a detection result latching circuit, configured to receive and output the first pulse signal; a switch circuit, configured to receive the first pulse signal from the detection result latching circuit, and configured to maintain a conductive state of the switch circuit during the first pulse to cause a power loop of the LED tube lamp to be conductive; and a detection determining circuit, configured to detect a first sampling signal on the power loop so as to determine the installation state between the LED tube lamp and the lamp socket.
Constant current source LED driver circuit with self-clamped output
A driver circuit provides current to a light source from a resonant tank having a single inductive element. The driver circuit is coupled to DC power source having a power rail and a ground, and includes a power inverter providing AC input to the tank, which further includes a DC blocking capacitor and a primary winding of the inductive element coupled in series between the output of the inverter and the ground. A leakage inductance of the inductive element provides resonant inductance for the tank. The inductive element further distributes power output from the resonant tank to a plurality of secondary windings coupled to an output rectifier. A resonant capacitor coupled across output ends of the secondary windings provides resonant capacitance for the tank. The output voltages across the secondary windings are clamped to a value based in part on a turns ratio between respective secondary windings.
Communication module and lighting apparatus having the same
Disclosed are a communication module and a lighting apparatus having the same. The communication module includes a housing provided therein with a space, and a module substrate provided in the space of the housing and provided therein with a wireless communication chip, a reset device to reset the wireless communication chip, and a display part to display the state of the wireless communication chip through the opening. The communication module is detachably coupled with an object to transmit a control signal, which is received through a wireless network, to the object. The communication module is stored when the lighting part of the lighting apparatus is replaced with new one, so that the cost is reduced. The light is discharged through the opening to display the erroneous operation of the inner part, such that the communication module is forcibly reset.
Device indication and commissioning for a lighting control system
A wireless device control system includes a remote server connected to a wide area network and having control software for configuring, monitoring, and controlling devices at a site. The wireless device control system also includes a wireless gateway located at the site and configured to communicate with the remote server via cellular communication. Control devices are in wireless communication with the wireless gateway via a mesh network, with each of the control devices being wired to control one of the site devices. A computer device is connected to the wide area network and has an interface enabling a user to access the server control software. Control instructions entered on the remote server through the interface are communicated from the remote server to the wireless gateway and then from the wireless gateway to the control devices.
LED tube lamp
An LED tube lamp including a glass lamp tube, an LED light strip disposed inside the glass lamp tube, and an end cap attached over an end of glass lamp tube is disclosed. The glass lamp tube includes a main body region, a rear end region, and a two-arc-shaped transition region connecting the main body region and the rear end region. The LED light strip includes a bendable circuit sheet being longer than the glass lamp tube to form a freely extending end portion. In addition, the end cap has at least one opening on surface to dissipating heat resulting from power supply and/or the process of heating of a hot melt adhesive.
Interactive user interface functionality for lighting devices or system
An example of a lighting system includes intelligent lighting devices, each of which includes a light source, a communication interface and a processor coupled to control the light source. In such a system, at least one of the lighting devices includes a user input sensor to detect user activity related to user inputs without requiring physical contact of the user; and at least one of the lighting devices includes an output component to provide information output to the user. One or more of the processors in the intelligent lighting devices are further configured to process user inputs detected by the user input sensor, control lighting and control output to a user via the output component so as to implement an interactive user interface for the system, for example, to facilitate user control of lighting operations of the system and/or to act as a user interface portal for other services.