| Patent application number | Description | Published |
|---|
| 20100029076 | METHOD OF MAKING AN INTERCONNECT STRUCTURE - A damascene process is described using a copper fill process to fill a trench ( | 02-04-2010 |
| 20100308833 | LIGHTING UNIT WITH COMPENSATION FOR OUTPUT FREQUENCY, AND METHOD FOR DETERMINING OUTPUT FREQUENCY - A method of determining the dominant output wavelength of an LED, comprises determining an electrical characteristic of the LED which is dependent on the voltage-capacitance characteristics, and analysing the characteristic to determine the dominant output wavelength. | 12-09-2010 |
| 20110080113 | SYSTEM AND METHOD FOR OUTPUT FLUX MEASUREMENT OF A LIGHT EMITTING DIODE - A method of estimating the output light flux of a light emitting diode, comprises applying a drive current waveform to the LED over a period of time comprising a testing period. The forward voltage across the LED is monitored during the testing period, and the output light flux is estimated as a function of changes in the forward voltage. | 04-07-2011 |
| 20110084701 | TESTING OF LEDS - A method of determining the ageing characteristics of an LED comprises applying a current stress pulse to the LED. The LED is monitored to determine when the thermal heating induced by the current stress pulse has been dissipated to a desired level. The operational characteristics of the LED are then measured before applying the next stressing pulse. | 04-14-2011 |
| 20110109897 | MEASURING APPARATUS - An apparatus comprising at least one measuring cell ( | 05-12-2011 |
| 20110121705 | APPARATUS FOR REGULATING THE TEMPERATURE OF A LIGHT EMITTING DIODE - Apparatus for regulating the temperature of a light emitting diode (LED). The apparatus includes a heat sink, an LED mount, and an LED mounted on the LED mount. The LED mount is configured to change shape in response to a change in temperature. The change in shape alters the position of the LED relative to the heat sink, for adjusting heat transfer between the LED and the heat sink. The LED mount may include a laminated portion such as a bi-metallic strip. | 05-26-2011 |
| 20110133214 | LIGHT SENSOR DEVICE AND MANUFACTURING METHOD - A light sensor device comprises a substrate ( | 06-09-2011 |
| 20110150028 | SELF-CALIBRATION CIRCUIT AND METHOD FOR JUNCTION TEMPERATURE ESTIMATION - The present invention relates to a calibration circuit, computer program product, and method of calibrating a junction temperature measurement of a semiconductor element, wherein respective forward voltages at junctions of the semiconductor element and a reference temperature sensor are measured, and an absolute ambient temperature is determined by using the reference temperature sensor, and the junction temperature of the semiconductor element is predicted based on the absolute ambient temperature and the measured forward voltages. | 06-23-2011 |
