| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 313633000 | Electrode composition | 16 |
| 20080203919 | DISCHARGE BULB - A discharge bulb is provided. The discharge bulb includes an arc tube, a glass shroud cylindrically surrounding the arc tube, and an insulated plug fixedly supporting an end portion of the glass shroud. The arc tube includes a light generating portion having a discharge space therein, a first pinch seal portion and a second pinch seal portion disposed on respective sides of the light generating portion, a first electrode rod protruding into the discharge space from the first pinch seal portion, and a second electrode rod protruding into the discharge space from the second pinch seal portion so as to be opposed to the first electrode rod. The discharge space contains a rare gas and a metal halide, but does not contain mercury. The first electrode is made of thoriated tungsten, and the second electrode rod is made of pure tungsten. | 08-28-2008 |
| 20090009084 | High-Pressure Discharge Lamp - The invention relates to a high-pressure discharge lamp having a discharge vessel ( | 01-08-2009 |
| 20090128039 | Discharge Lamp with Electrode Made Of Tungsten Alloy Comprising < 3 Wt.% Of Rhenium - The invention relates to a high-pressure gas discharge lamp ( | 05-21-2009 |
| 20090302764 | METHOD FOR THE THERMAL TREATMENT OF TUNGSTEN ELECTRODES FREE FROM THORIUM OXIDE FOR HIGH-PRESSURE DISCHARGE LAMPS - The invention relates to a method for the thermal treatment of tungsten electrodes having a fibrous mocrostructure and being free from thorium oxide for high-pressure discharge lamps, to such a tungsten electrode free from thorium oxide, to a method of manufacturing a high-pressure gas discharge lamp with at least one such tungsten electrode free from thorium oxide, to a high-pressure gas discharge lamp with at least one such tungsten electrode free from thorium oxide, and to a lighting unit with at least one such high-pressure gas discharge lamp. | 12-10-2009 |
| 20090302765 | EMISSIVE ELECTRODE MATERIALS FOR ELECTRIC LAMPS AND METHODS OF MAKING - Electron emissive compositions comprising a barium neodymium oxide are described. These compositions may be applied to electrodes such that electron emission is facilitated. Methods of manufacturing emissive electrodes comprising a barium neodymium oxide are also described. Various discharge lamps employing such electrodes are described as well. | 12-10-2009 |
| 20100176723 | HIGH PRESSURE MERCURY LAMP - To devise a UV light source which has an increased UV irradiance in the short wavelength range, prevents blackening of the light emission tube and a decrease of the irradiance and has a long durability, a high pressure mercury lamp of the direct current type is provided, comprising a light emission tube, a cathode and an anode arranged at a distance oppositely to each other inside said light emission tube, said cathode having a shape of a truncated cone with a flat part at a tip end thereof, mercury filled inside said light emission tube in an amount of 0.05 to 0.10 mg/mm | 07-15-2010 |
| 20100283388 | ELECTRODE PASTE FOR PLASMA DISPLAY PANEL AND BLACK BUS ELECTRODE FOR PLASMA DISPLAY PANEL - Described is an electrode paste for plasma display panel, which has a black pigment, a glass frit, an organic binder and a solvent, wherein the black pigment contains cobalt oxide (CO | 11-11-2010 |
| 20100301746 | GAS DISCHARGE LAMP WITH A GAS FILLING COMPRISING CHALCOGEN - A gas discharge lamp ( | 12-02-2010 |
| 20110254439 | VEHICULAR DISCHARGE LAMP - A vehicular discharge lamp that emits light by a DC lighting system, the vehicular discharge lamp includes: an outer tube; a light emitting tube disposed in the outer tube and including a light emitting portion and fine tube portions connected to the light emitting portion; cathode-side and anode-side electrodes disposed in the light emitting tube; two lead wires connected to the electrodes; and a metal film or a metal oxide applied on an outer peripheral surface of the fine tube portion on an anode side of the light emitting tube, or the metal wire being wound on the outer peripheral surface. Inert gas having negative pressure is filled in a space outside the light emitting tube in the outer tube, and a negative high-voltage pulse is applied to the anode-side electrode at a time of start-up. | 10-20-2011 |
| 20120001542 | SHORT ARC TYPE DISCHARGE LAMP - A short arc type discharge lamp wherein a cathode and an anode are arranged opposite to each other in an interior of a light emitting tube and said cathode comprises a main part made from tungsten and an emitter part made from thoriated tungsten, and said emitter part having been diffusion bonded to the main part via a joint face, wherein gaps are formed locally at said joint face of said main part and the emitter part. | 01-05-2012 |
| 20120126695 | COLOR CONTROL FOR LOW WATTAGE CERAMIC METAL HALIDE LAMPS - The invention relates generally to ceramic metal halide lamps. More particularly, the invention relates to low wattage ceramic metal halide lamps having enhanced color control. In one embodiment according to the invention, such lamps may be characterized by a shank length (SL) to shank diameter (SD) ratio of between 5.1 and 15.5. Further, the lamp exhibits a sigma CCT of less than about 100° K. | 05-24-2012 |
| 20120181925 | SHORT ARC TYPE DISCHARGE LAMP - A short arc type discharge lamp includes a cathode and an anode arranged inside an arc tube to face each other. The cathode comprises a main body portion made of tungsten and an emitter portion made of thoriated tungsten that is joined at the tip of the main body portion, where a metal oxide other than thorium (Th) is contained in the main body portion of the cathode, and a tungsten carbide layer is formed on the metal oxide. | 07-19-2012 |
| 20130221842 | Method for Producing an Electrode for a High-Pressure Discharge Lamp and High-Pressure Discharge Lamp Comprising at least One Electrode thus Produced - A method for producing an electrode ( | 08-29-2013 |
| 20150318164 | METAL HALIDE LAMP HAVING IMPROVED LUMEN MAINTENANCE - A metal halide lamp having improved lumen maintenance due to improved wall cleaning through use of a wall cleaning tungsten halogen chemical cycle. Oxygen for the wall cleaning tungsten halogen cycle is provided by an oxidized electrode. | 11-05-2015 |
| 20160148797 | DISCHARGE LAMP - A discharge lamp includes a cathode in a luminous tube, and an emitter, other than thorium, is added to the cathode. The emitter is prevented from being excessively vaporized from the cathode and depleted soon. Smooth lighting is enabled even at start-up. A main body part ( | 05-26-2016 |
| 20160155625 | DISCHARGE LAMP | 06-02-2016 |
