Patent application number | Description | Published |
20110273890 | VENTILATED LED OPTICS - In accordance with certain embodiments, an illumination device includes a light-emitting diode and a light-guiding optical component comprising a channel therethrough. | 11-10-2011 |
20120171881 | PERMANENT CONVERSION ADAPTER FOR LIGHTING FIXTURES - A permanent adapter for incandescent lighting fixtures can removably receive LEDs but cannot itself be removed from the fixture. | 07-05-2012 |
20120194098 | BRIGHTNESS CONTROL FOR LIGHTING FIXTURES - A brightness controller determines a dimmer setting and adjusts brightness of a light source according to the dimmer setting. | 08-02-2012 |
20120206062 | TIME-DOMAIN REDUCTION OF FLICKER AND POWER CONSUMPTION IN LED LIGHTING - In accordance with certain embodiments, a power signal for driving an LED lighting system is analyzed on a timeslice basis, and the signal is adjusted (e.g., on a timeslice basis) to compensate for deviations therein. | 08-16-2012 |
20120268013 | DYNAMIC-HEADROOM LED POWER SUPPLY - A voltage level supplied to power a plurality of LED light fixtures is dynamically adjusted to control the headroom of the voltage level. The current drawn by at least one of the plurality of LED light fixtures is monitored, and the voltage is increased from zero until the monitored current reaches its maximum. | 10-25-2012 |
20120268030 | LED DRIVER HAVING CONSTANT INPUT CURRENT - Power consumed by an LED driver may be reduced by drawing, from an electronic transformer or dimmer, an input current that is constant over a plurality of input voltages. Power derived from the constant input current is provided to the LED driver. | 10-25-2012 |
20120319586 | LED LAMP WITH INTEGRATED LIGHT DETECTOR - Operation of an LED as a light source may be temporarily interrupted to facilitate measurement of the ambient light level, as well as control of the operation of the LED(s) based thereon. | 12-20-2012 |
20120319592 | METHODS OF MONITORING PERFORMANCE OF AN LED LAMP - Operation of an LED as a light source may be temporarily interrupted to facilitate measurement of the light from other LEDs, as well as control of the operation of the LED(s) based thereon. | 12-20-2012 |
20120320602 | ENGAGEABLE LED OPTICS AND LIGHTING FIXTURES INCORPORATING THEM - Total internal reflection (TIR) optics have an engagement member that mates with a complementary feature on the LED holder. The engagement member does not interfere with light propagation through or emission from the optical component, and does not enlarge the footprint area occupied by the optical component. | 12-20-2012 |
20120321321 | METHODS OF COMMUNICATION UTILIZING AN LED LAMP - Operation of an LED as a light source may be temporarily interrupted to facilitate receipt and/or transmission of optical communications, as well as control of the operation of the LED based thereon. | 12-20-2012 |
Patent application number | Description | Published |
20120062120 | THERMAL FOLDBACK CIRCUIT WITH DIMMER MONITOR - A thermal foldback circuit protects a lamp circuit component from overheating by limiting power to the lamp in response to an over-temperature condition. The amount of limiting is adjusted based at least in part on an input from an external power-reduction source, such as a dimmer. | 03-15-2012 |
20120062141 | VARIABLE-IMPEDANCE LOAD FOR LED LAMPS - In various embodiments, a startup circuit for a low-voltage-lighting electronic transformer includes a low-impedance output circuit. At the beginning of an AC signal cycle, the low-impedance output circuit presents a low-impedance path to the output of the transformer, thereby causing a surge of current in the transformer and initiating oscillation therein. | 03-15-2012 |
20130063963 | LED TRACK LIGHTING HAVING AN ILLUMINATED TRACK - An LED track-lighting system includes an LED for emitting light. A light-transmitting element captures light emitted by the LED light and emits it over at least a portion of the track. | 03-14-2013 |
20130113458 | LED LAMP DRIVER IDENTIFICATION - The type of an LED power driver (i.e., a magnetic transformer or an electronic transformer) is determined by manipulating the AC voltage produced by the power driver so that it may be analyzed and the type of power driver reliably determined. In various embodiments, a system for detecting an AC power supply type includes a circuit for monitoring a negative half or a positive half of an output voltage of the AC power supply and an analyzer for determining the AC power supply type based at least in part on a presence or absence of an envelope in the monitored output voltage. | 05-09-2013 |
20130135879 | THERMALLY ISOLATED HEAT SINK FOR LED LIGHTING - A system for protecting a heat-sensitive component in an LED lamp from overheating. The system including: a heat-generating component, a heat-dissipating component thermally coupled to the heat-generating component, a heat-sensitive component electrically connected to the heat-generating component, and a heat-isolating element for thermally isolating the heat-generating component and the heat-sensitive component. | 05-30-2013 |
20130154519 | LED LAMP WITH COLOR-MIXING CAVITY - A device for emitting white light includes, in certain embodiments, an ultraviolet and/or a blue LED having an emission surface, a conversion coating spaced away from but enveloping the emission surface to form a first mixing cavity, at least one secondary LED emitting a color different from ultraviolet and blue and spaced away from the conversion coating, and a diffuser spaced away from but enveloping the conversion coating and the secondary LED to define a second mixing cavity that is unfilled. | 06-20-2013 |