OSRAM Gesellschaft mit beschränkter Haftung Patent applications |
Patent application number | Title | Published |
20120026732 | LAMP - A lamp includes a bulb comprising at least a partially light-transmissive material, a lamp base for fitting the lamp in a socket and feeding electrical energy, an illuminant arranged in the bulb and designed at least for a directed emission of light, and a means operable by a user for aligning the illuminant to vary an emission direction of the light. | 02-02-2012 |
20110291123 | METHOD FOR PRODUCING A PLURALITY OF LED ILLUMINATION DEVICES AND A PLURALITY OF LED CHIPSETS FOR ILLUMINATION DEVICES, AND LED ILLUMINTATION DEVICE - A method for producing a plurality of LED illumination devices which each emit light having an average value of a first photometric parameter including producing a plurality of LED chips which emit light of the same color; measuring values of the first photometric parameter of the LED chips; combining the LED chips to form groups of at least two LED chips which have different values of the first photometric parameter such that differences in the average values of all the LED illumination devices are imperceptible to the human eye; and equipping a respective LED illumination device with a group of LED chips. | 12-01-2011 |
20110163666 | Flat Lamp with Elastic Frame - A flat lamp comprising a flat discharge vessel, which encloses a discharge volume with two plates ( | 07-07-2011 |
20110122617 | Retaining Frame Comprising at Least one Optical Element - A retaining frame ( | 05-26-2011 |
20100296266 | Lighting Device - A luminous device ( | 11-25-2010 |
20100244654 | Built-In Lamp with Cable, in Particular for Aerodrome Lighting - A lamp which has a lamp glass envelope ( | 09-30-2010 |
20100103497 | Optoelectronic Device - An optoelectronic device for projecting a first beam ( | 04-29-2010 |
20100072918 | Circuit Arrangement and Method for Operating at Least One First and a Second Lamp - A circuit arrangement for operating at least one first and second lamp each provided with a first and second coil electrode includes a first and second terminal for the first coil electrode of the first lamp, a first and second terminal for the second coil electrode of the first lamp, a first and second terminal for the first coil electrode of the second lamp, a first and second terminal for the second coil electrode of the second lamp, at least one supply connection for supplying voltage to the respective first coil electrode of the at least one first and second lamp, and at least one preheating device for the respective first coil electrode of the at least one first and second lamp. The second terminal of the first coil electrode of the first lamp is coupled to the second terminal of the first coil electrode of the second lamp while the preheating device encompasses a first preheating inductor and a second preheating inductor. | 03-25-2010 |
20100052530 | Lamp Device and Method for the Production of a Lamp Device - A lamp device ( | 03-04-2010 |
20100045208 | Circuit Arrangement for Operating at Least One Semiconductor Light Source - A circuit arrangement for operating at least one semiconductor light source having an input for inputting an input voltage, an output for outputting an output voltage to the semiconductor light source, wherein the main current path of the circuit arrangement lies between the two input terminals, and comprises a series circuit formed by a switch, an inductance and a back-to-back connection of a first diode or light emitting diode and the at least one semiconductor light source, wherein a first storage capacitor is arranged in parallel with the at least one semiconductor light source, and a second diode is arranged in series with this parallel connection. | 02-25-2010 |
20100013401 | Circuit Arrangement and Method for Starting and Operating One or More Discharge Lamps - A circuit arrangement for starting and operating one or more discharge lamps comprising a self-oscillating inverter ( | 01-21-2010 |
20090267529 | Circuit Arrangement and Method for the Operation of a High-Pressure Gas Discharge Lamp - Disclosed is a circuit arrangement for supplying a lamp wattage to a high-pressure gas discharge lamp (Lp) in the form of an alternating current having an operating frequency, said operating frequency being frequency-modulated within large limits. The time characteristic of the operating frequency is selected such that more power is supplied to the lamp at greater frequencies, thus reducing the risk of exciting acoustic resonance in the lamp. Amplitude modulation through the frequency response of an interface (L | 10-29-2009 |
20090212683 | Red-Emitting Luminescent Substance and Light Source Comprising Such a Luminescent Substance - Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources. | 08-27-2009 |
20090167180 | Electric Lamp - The invention relates to a novel lamp which comprises a pinched base ( | 07-02-2009 |
20090050846 | Illuminant and Light Source Containing the Same, and Method for Producing said Illuminant - An illumination from the class of oxynitridosilicates, doped with bivalent europium and comprising a cation M2+, said illuminant corresponding to the basic formula M | 02-26-2009 |
20090034307 | Protection Device for Electronic Converters, Related Converter and Method - A device for protecting an electronic converter, e.g. for halogen lamps, includes a comparator ( | 02-05-2009 |
20090034140 | Circuit Arrangement for Providing a DC Operating Voltage - The invention relates to a circuit arrangement for providing an operating DC voltage from a mains voltage, more particularly to operating circuits comprising a clocked electronic converter. Such operating circuits are preferably used for lamps or other light sources. The present invention protects such circuit arrangements from transient mains overvoltages. As soon as a mains overvoltage occurs a diverter switch Th connects the voltage-sensitive switch S | 02-05-2009 |
20080315770 | High-Pressure Discharge Lamp Having Cooling Laminates Fitted at the End of the Discharge Vessel - Laminates, which are used for cooling the discharge vessel, are fitted to the seals of the ceramic discharge vessel. They are an integral part of the seal. | 12-25-2008 |