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| Number | Title | Issue Date |
| 7331837 | Coil antenna/protection for ceramic metal halide lamps The invention relates to a high-pressure discharge lamp of the ceramic metal halide type of the Philips MasterColor series having a molybdenum coil wrapped around the discharge vessel and at least a portion of the electrode feed through means, and having power range... | 02/19/2008 |
| 7196462 | Arc tube with shortened total length, manufacturing method for arc tube, and low-pressure mercury lamp An arc tube is formed by turning a glass tube at a substantially middle thereof and winding the glass tube from the middle to its both ends around an axis to form a double spiral, and sealing electrodes at both ends of the glass tube. The spiral pitch of a spiral pa... | 03/27/2007 |
| 7170228 | Ceramic arc tube having an integral susceptor A ceramic arc tube having an integral susceptor for RF inductive sealing is described. The integral susceptor in the form of an electrically conductive coating is applied directly to the surface of the arc tube in the seal region. This enables RF heating which is su... | 01/30/2007 |
| 6995513 | Coil antenna/protection for ceramic metal halide lamps The invention relates to improvements in high-pressure discharge lamps of the ceramic metal halide type of the Philips MasterColor series having a metal coil wrapped around the discharge vessel and/or at least a portion of the electrode feed through means, and havin... | 02/07/2006 |
| 6979421 | Method of making a ceramic arc tube A ceramic arc tube assembly and a method for making a ceramic arc tube are described which simplify the manufacture of ceramic arc tubes by reducing the number of handling and heat treatments required to assemble arc tubes prior to the final sintering operation. In ... | 12/27/2005 |
| 6963158 | Mount assembly for discharge lamps A mount assembly (10) for an arc discharge vessel has a glass stem (12) having a longitudinal axis (14) that includes a flare (16) with a barrel portion (18) and a seal portion (20) containing at least two relatively rigid s... | 11/08/2005 |
| 6861798 | Tailored spacer wall coatings for reduced secondary electron emission The present invention provides a spacer assembly which is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly when the spacer assembly is subjected to flat panel display operating voltages. The present invention f... | 03/01/2005 |
| 6495959 | Cermet for lamp and ceramic discharge lamp An improved cermet for hermetically sealing a discharge vessel in a ceramic discharge lamp where the cermet includes a material having a coefficient of linear expansion which is at least equal to a coefficient of linear expansion of a translucent ceramic,... | 12/17/2002 |
| 6465940 | Cermet and ceramic discharge lamp A cermet which contains an aluminum oxide component, a silicon dioxide component, a component for modifying the coefficient of linear expansion which is formed of a metal oxide other than aluminum oxide and silicon dioxide, and a metal component with a sm... | 10/15/2002 |
| 6326721 | HID lamp having arc tube mounting frame which relieves thermal stress An HID lamp utilizes a wire frame member having an integral coil with spaces between windings to relieve thermal stress and provide shock absorption in a ceramic metal halide discharge lamp mounted concentrically in an elliptical-dimple (ED-type) glass en... | 12/04/2001 |
| 6097140 | Display panels using fibrous field emitters Display panels having at least one suspended fibrous cathode containing an electron field emitter are disclosed. The fibrous cathode is supported by a substrate (10) containing two sets of parallel rows of crests and valleys. The first set of parallel cre... | 08/01/2000 |
| 5798609 | Flat display screen with a wide inter-electrode spacing A flat display screen includes two electrodes separated by an inner space. At least one first electrode is supported by a thin substrate and by a thick rigidifying plate, the inner space being defined by a peripheral frame placed between the electrodes, o... | 08/25/1998 |
| 5723951 | Method of hot restarting a high intensity discharge lamp An apparatus and method for operating an arc discharge lamp which can be hot restarted is described. The method involves providing low microwave power after the lamp ballast is disconnected from the lamp. The microwave power is modulated such that conduct... | 03/03/1998 |
| 5391960 | Cold cathode tube for generating light with uniform intensity along the tube A cold cathode tube in which an auxiliary electrode formed of an electric conductive material is provided on an outer surface of a cylindrical tube element so as to extend over substantially a half of the tube element from one end thereof to a location in... | 02/21/1995 |
| 4607190 | Television camera tube with conductive wall coating and transversely wall supported electrode Television camera tube comprising a tubular envelope of glass drawn on a mandril and having an internal conductive wall coating. A diaphragm having an aperture is supported in the envelope by a supporting surface extending transverse to the longitudinal a... | 08/19/1986 |
| 4359662 | Flash discharge lamp A flash discharge lamp in which a tubular glass bulb is sealed at both ends by a cathode metal cap and an anode metal cap, respectively; a cathode material member is mounted on the top of an intermediate member planted on the bottom of the cathode metal c... | 11/16/1982 |
| 4283652 | Gas discharge lamp having supporting tongue formed from electrode feedthrough Electric discharge lamp having a cylindrical ceramic discharge vessel, closed in a vacuum-tight manner, the wall of which incorporates a current feedthrough member, which extends outside the discharge vessel and is provided there, for bearing on the disch... | 08/11/1981 |
| 4276494 | Cathode ray tube with transversely supported electrode and conductive wall coating In a cathode-ray tube, in particular a camera tube, the inner wall of the glass envelope is coated with an electrically conductive material interrupted in the proximity of electrodes extending transversely to the wall coating and supported by transversely... | 06/30/1981 |
| 4160930 | Electric discharge lamp with annular current conductor The current leadthrough for the auxiliary electrode of a discharge lamp with ceramic lamp vessel is constructed as a cylindrical tube concentric with the leadthrough of the main electrode. The cylindrical tube which serves as a current leadthrough can ext... | 07/10/1979 |
| 4039888 | Image pick-up tube having a plurality of electrodes on the face-plate A face-plate of an image pick-up tube having a plurality of electrodes formed thereon and a plurality of conductors provided for external connection extending from said plurality of electrodes across the outer periphery of the face plate to the outer surf... | 08/02/1977 |
