| Patent application number | Description | Published |
|---|
| 20080218300 | Transformer - The invention relates to a transformer ( | 09-11-2008 |
| 20080272743 | Driver Circuit Arrangement - The invention relates to a driver circuit arrangement ( | 11-06-2008 |
| 20080297300 | High Voltage Transformer | 12-04-2008 |
| 20090002116 | Interleaved Planar Transformer Primary and Secondary Winding - The present invention describes a winding for a transformer comprising first ( | 01-01-2009 |
| 20090160364 | OPERATING SOLID-STATE LIGHTING ELEMENTS - Operating a lighting device by acquiring a target brightness level of at least one solid-state lighting unit, and determining a reference driving current amplitude for obtaining the target brightness level. If the reference driving current amplitude is below an optimum driving current amplitude, the solid-state lighting unit is operated at the optimum driving current amplitude, which is pulse-width modulated to obtain the target brightness level. | 06-25-2009 |
| 20090167206 | LIGHTING DEVICE - A lighting device ( | 07-02-2009 |
| 20090187234 | COLORED AND WHITE LIGHT GENERATING LIGHTING DEVICE - A lighting device for generating colored and white light. According to the invention the lighting device comprises at least one light source ( | 07-23-2009 |
| 20090230875 | METHOD AND A DRIVER CIRCUIT FOR LED OPERATION - In a method and a driver circuit for operating one or more light emitting diodes, LEDs, an alternating supply current is generated and transformed to an alternating secondary winding voltage. Using rectifier means, such as diodes or synchronous switches, the alternating secondary winding voltage is converted to a substantially constant load current by using a buffer element, such as an output choke, i.e. a suitable inductor. The power transferred from the power source to the LEDs may be controlled by frequency control of the alternating supply current. | 09-17-2009 |
| 20100045188 | ADJUSTING A DRIVING SIGNAL FOR SOLID-STATE LIGHTING DEVICES - Adjusting a driving signal for a lighting device by obtaining a temperature of the lighting device, and adjusting at least one parameter of a conversion procedure depending on the obtained temperature. Further a set-point of a desired colour and/or brightness is converted into a set-point of colour sensor coordinates with the conversion procedure. The actual colour values of the lighting device are obtained, and the driving signal is adjusted based on a difference between the colour sensor coordinates set-point and the obtained colour values. | 02-25-2010 |
| 20100296294 | LIGHTING DEVICE WITH REFLECTIVE ELECTROACTIVE POLYMER ACTUATOR - The invention relates to alighting device which comprises an at least partly reflective electroactive polymer actuator ( | 11-25-2010 |
| 20100315007 | COLOR CONTROLLED LIGHT SOURCE AND A METHOD FOR CONTROLLING COLOR GENERATION IN A LIGHT SOURCE - This invention relates to a color controlled light source comprising a plurality of colored light elements; a detector for detecting the light output of the light source and generating a detection signal; and a color control unit for generating driving signals to said light elements on the basis of said detection signal and a predetermined target color point of the light output of the light source. In order to enable detection of contributions from individual light elements to the light output of the light source, the light source further comprises a modulator for individual signature modulation of the driving signal to each one of said light elements; and a corresponding demodulator for demodulation of said detection signal and generation of actual, i.e. measured, values of the output of the individual light elements. The color control unit determines nominal values of the light output of each light element for obtaining said target color point, and compares the actual values with the nominal values. If there is a difference, it adjusts the driving signals in order to minimize the difference. | 12-16-2010 |
| 20110042554 | Light Sensor with Integrated Temperature Sensor Functionality - The invention relates to a light sensor, particularly for LED-based lamps. The light sensor comprises at least one photosensor ( | 02-24-2011 |
| 20110057571 | DEVICE AND METHOD FOR CONTROLLING THE COLOR POINT OF AN LED LIGHT SOURCE - The present invention relates to a device and method for controlling the color point of an LED light source ( | 03-10-2011 |
| 20110075797 | DEVICE FOR A COMPUTER TOMOGRAPHY GANTRY FOR TRANSFERING CONTACTLESSLY ELECTRICAL ENERGY - The invention provides a device for a computer tomography gantry ( | 03-31-2011 |
| 20110127973 | SWITCHED MODE POWER CONVERTER - The invention provides a switched mode power converter adapted for zero-voltage transition operation, wherein the converter comprises a half-bridge, having a first power switch ( | 06-02-2011 |
| 20110140131 | PHOTO-DETECTOR WITH WAVELENGTH CONVERTER - The invention relates to a photo-detector comprising a light sensitive element ( | 06-16-2011 |
