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 |
20110317430 | Reflector, Light Source Arrangement And Projector Apparatus - A reflector may have a reflective surface, wherein the contour of the reflective surface is traversed by a Bézier curve. | 12-29-2011 |
20120127714 | Lighting Device Having Light Diodes - A lighting device ( | 05-24-2012 |
20120195059 | Lighting Fixture Having an Optical Wave Guide and a Descartes Lens or Descartes Reflector - A light guiding structure comprising a light guiding element ( | 08-02-2012 |
20120219277 | Luminaire, Camera or Camcorder Having Same and Optical Element for a Luminaire - A luminaire ( | 08-30-2012 |
20120294001 | Luminaire For Illuminating a Target Area by Means of Retroreflection of Light from a Light-Emitting Diode Module on a Reflector - A luminaire for illuminating a target area ( | 11-22-2012 |
20130094182 | Light Source Unit with Phosphor Element - A light source unit comprising: a pump light source ( | 04-18-2013 |
20130155379 | Projection Device and Method for Operating a Projection Device - A projection device ( | 06-20-2013 |
20130155648 | COLOUR-TUNABLE LIGHT SOURCE UNIT WITH PHOSPHOR ELEMENT - The invention concerns a light source unit of tunable spectral properties, having a pump light source and a phosphor element for a conversion of pump light into converted light intended for illuminating a target, wherein the phosphor element has at least two phosphor element sections interacting differently with pump light, and wherein the light source unit further comprises a deflecting unit, such as a zoom lens or a variable diffraction grating, for deflecting the pump light so as to vary a distribution of pump light incident onto the phosphor element with respect to the different phosphor element sections, in order to vary spectral properties of the combined converted light beam emanating from the light source unit. | 06-20-2013 |
20130155649 | Phosphor Device and Lighting Apparatus Comprising the Same - A phosphor device ( | 06-20-2013 |
20140098518 | DEVICE FOR THE BEAM SHAPING OF LIGHT - In various embodiments, a device for the beam shaping of light is provided. The device may include: a solid body composed of a transmission material that is at least partly transmissive to the light, the solid body including: a coupling-in surface for coupling in the light, a first reflection surface for deflecting the light, and a coupling-out surface for coupling out the light, wherein the solid body is designed to reflect the coupled-in light in its interior at the first reflection surface; and wherein the first reflection surface is embodied in a parabolic fashion in a sectional plane including a propagation direction of the reflected light. | 04-10-2014 |
20140111967 | LIGHTING DEVICE WITH PUMP LIGHT SOURCE AND PHOSPHOR ARRANGEMENT - In various embodiments, a lighting device is provided. The lighting device may include: a pump light source; a phosphor arrangement; and a light control element arranged between the pump light source and the phosphor arrangement; wherein the light control element is configured to split the pump light beam into a reflected part and a transmitted part and for controlling the ratio between reflected part and transmitted part; and wherein the phosphor arrangement includes at least one phosphor which can be irradiated with the reflected part and/or transmitted part of the pump light of the pump light source and emits said pump light again at least partly in a wavelength-converted fashion. | 04-24-2014 |
20140153214 | Phosphor Device and Lighting Apparatus Comprising the Same - A phosphor device ( | 06-05-2014 |
20140327887 | PROJECTION SYSTEM WITH A PLURALITY OF LIGHT-EMITTING ELEMENTS - A projection system for illuminating a projection surface may include at least one light source formed from a plurality of light-emitting elements and an optical integrator having an entrance opening and an exit opening, into the entrance opening of which the light of each light-emitting element is coupled such that the mixed light of all the light-emitting elements emerges from its exit opening, and an imaging optical unit, which projects the light emerging from the exit opening of each integrator onto the projection surface, wherein an optical element is in each case arranged between the exit opening of each integrator and the imaging optical unit, said optical element shifting the virtual image of the entrance opening along an optical axis of the projection system such that its image generated by the imaging optical unit is not visible on the projection surface. | 11-06-2014 |
20140369023 | LASER-PHOSPHOR DEVICE WITH LASER ARRAY - A laser-phosphor device is disclosed wherein laser radiation from a laser array is transmitted via a collimating primary optical unit and via an imaging optical system onto a phosphor layer. The laser arrangement has a plurality of lasers, for example laser diodes. Via the imaging optical system, a reduced imaging of the laser radiation distribution of the primary optical unit is produced on the phosphor layer. | 12-18-2014 |
20150043191 | LIGHTING APPARATUS WITH ZOOMING FUNCTION - A lighting apparatus includes a reflector which has a truncated cone shape along a central axis of the lighting apparatus and a base which is coupled to a narrow end face of the reflector and is capable of moving toward a wide end face of the reflector along the central axis of the lighting apparatus. The lighting apparatus further includes a light source which is mounted centrally on an end face of the base. | 02-12-2015 |