| Patent application number | Description | Published |
|---|
| 20100002202 | Configuration of an Optical Illumination System for Minimizing the Influence of Arc Deflections - A method for reducing the effects of fluctuations in the light intensity of an effective light which is emitted by a discharge lamp, is focused by a reflector and is coupled into a light-collecting optical unit with a defined étendue at a defined acceptance angle. The method comprises the steps of: defining an effective luminous flux maximum depending on étendue, acceptance angle and/or reflector properties, and changing the reflector properties, the acceptance angle and/or the étendue in such a way that the effective luminous flux maximum is reduced by a definable percentage magnitude. | 01-07-2010 |
| 20100026211 | Circuit Arrangement for Operation of Discharge Lamps, and Method for Operation of Discharge Lamps - A circuit arrangement for operating a discharge lamp, wherein the circuit arrangement comprises a commutation device, which has an input which is coupled to a DC source, and has an output which can be coupled to a discharge lamp. The commutation device is designed in such a way that it couples the DC source to the output, and the polarity at which the DC source is coupled to the output can be commutated by a control device. The control device has a sync input, and the polarity of the DC source is commutated in synchronism with sync pulses of a sync signal which can be applied at the sync input. The control device has a measuring input, which is coupled to a measuring device which is designed to provide a measured value which is a measure of the size of electrode peaks. The control device suppresses at least one commutation if the measured value overshoots or undershoots a predetermined threshold value. | 02-04-2010 |
| 20100033974 | LAMP MODULE FOR PROJECTORS - A lamp module is disclosed, in particular for projectors for data or video projection, having at least one lamp ( | 02-11-2010 |
| 20100079734 | Projection Apparatus with Filter - A projection apparatus comprising a light source, an image display device and at least one filter device for transmitting a first portion of the radiation from the light source in a first wavelength range in the visible range to the image display device, and for diffusely reflecting a second portion of the radiation in a second wavelength range outside the visible range. | 04-01-2010 |
| 20100103497 | Optoelectronic Device - An optoelectronic device for projecting a first beam ( | 04-29-2010 |
| 20100149497 | Projection apparatus having improved projection properties, and method and procedure, respectively, for projecting an image - In a method for projecting an image onto a projection area ( | 06-17-2010 |
| 20100302516 | PROJECTOR FOR PROJECTING AN IMAGE AND CORRESPONDING METHOD - The invention relates to a projector ( | 12-02-2010 |
