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| Number | Title | Issue Date |
| 8102121 | Single-ended ceramic discharge lamp A single-ended ceramic discharge lamp is described which has an integral optical surface such as a parabolic or elliptical reflector. The single-ended configuration eliminates the need for the mounting structures found in double-ended lamps that can interfere with t... | 01/24/2012 |
| 7843137 | Luminous vessels The inventive luminous vessel has strong bonding and improved adhesion of the current through conductor provided in the luminous container to a sealing member or the like. A luminous vessel has a luminous container, a solid current through conductor made of a metal ... | 11/30/2010 |
| 7652429 | Electrodes with cermets for ceramic metal halide lamps This invention is about a CMH lamp arc tube seal construction where the feedthrough electrode contains a cermet in such a manner that the said cermet is either not exposed outside the ceramic capillary (which in most cases is polycrystalline alumina, PCA) or if it i... | 01/26/2010 |
| 7615929 | Ceramic lamps and methods of making same A lamp having a ceramic arc envelope, an end structure coupled to the ceramic arc envelope and extending across an opening in the ceramic arc envelope, where the end structure comprises a passageway communicative with an interior chamber of the ceramic arc envelope ... | 11/10/2009 |
| 7573201 | Dielectric barrier discharge lamp having pluggable electrodes The invention relates to a dielectric barrier discharge lamp having outer electrodes which have ends in the form of plug connection elements. ... | 08/11/2009 |
| 7560865 | Discharge lamp of the short arc type A discharge lamp of the short arc type having an arc tube, a hermetically sealed tube at each of opposite ends of the, a pair of electrodes which are located in the arc tube, electrode rods which support the electrodes, support parts which are each formed by part of... | 07/14/2009 |
| 7525252 | Sealing tube material for high pressure short-arc discharge lamps The present invention is directed to the use of a molybdenum-rhenium alloy in the construction of sealing tubes for high pressure discharge lamps. ... | 04/28/2009 |
| 7443091 | Hermetical lamp sealing techniques and lamp having uniquely sealed components A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For exa... | 10/28/2008 |
| 7438621 | Hermetical end-to-end sealing techniques and lamp having uniquely sealed components A hermetically sealed lamp having at least one end-to-end seal. The end-to-end seal may be a material diffusion bond, a seal-material bond, or any other suitable bond. For example, the hermetically sealed lamp may have one or more endcaps butt-sealed to an arc envel... | 10/21/2008 |
| 7417364 | Light source with sealant cover A light source includes a lamp and housing. The housing has a right-angle form with a first leg for the lamp, a second leg for connecting leads for the lamp and a jointure between the legs having an aperture allowing access to the connecting leads and lead-ins. The ... | 08/26/2008 |
| 7402954 | High-pressure discharge lamp, having a seal comprising a gas-filling cavity A high-pressure discharge lamp (1) having a quartz glass discharge vessel (2) enclosing a discharge space (3) with an ionizable filling, wherein a first electrode (4) and a second electrode (40) are present between which a discharg... | 07/22/2008 |
| 7378799 | High intensity discharge lamp having compliant seal In certain embodiments, a lamp is provided with an arc envelope including a ceramic, an end member including a material different from the ceramic, and a compliant seal disposed between the end member and the arc envelope. The compliant seal includes a plurality of ... | 05/27/2008 |
| 7372201 | Sub-miniature arc lamp The disclosure has described a sub-miniature arc lamp and a method to make a sub-miniature arc lamp. An embodiment of the sub-miniature arc lamp includes a sapphire body having a first end and a second end, the first end being coupled to a first cap and the second e... | 05/13/2008 |
| 7372207 | Lamp and method of manufacturing a lamp A lamp comprising an elongate light source and a coaxially transparent sleeve surrounding the light source, wherein the light source is fixed at one end in the sleeve by means of a cured cement, wherein a cement barrier is present between the light source and the sl... | 05/13/2008 |
| 7362053 | Ceramic discharge vessel having aluminum oxynitride seal region The present invention is a ceramic discharge vessel for use in high-intensity-discharge (HID) lamps. The discharge vessel has a ceramic body and at least one seal region comprised of an aluminum oxynitride material. The seal region further has a surface layer for co... | 04/22/2008 |
| 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 |
| 7329979 | Electrically conductive cermet and devices made thereof An electrically conducting cermet comprises at least one transition metal element dispersed in a matrix of at least one refractory oxide selected from the group consisting of yttria, alumina, garnet, magnesium aluminum oxide, and combinations; wherein an amount of t... | 02/12/2008 |
| 7327085 | Discharge tubes Discharge tubes for a lamp include a body portion with a first end, a second end, and a tubular member defining an interior area. The tubular member extends along an elongated axis between the first end and the second end. The discharge tube further includes a first... | 02/05/2008 |
| 7317284 | Spacer bead geometry for controlled sealing stability A shaped bead structure provides a bottom sealing periphery adjacent a non-bonding portion which may include an upper portion which may provide upper envelope stability and may but will preferably not bond to the glass envelope. The provision of a section of the gla... | 01/08/2008 |
| 7312563 | Short arc lamp According to the present invention, a short arc lamp comprises a lamp main body having a reflective surface therein, a first opening on an optical axis thereof, and a second openings, a window member provided so as to close the second opening and to define a dischar... | 12/25/2007 |
| 7301282 | High pressure mercury lamps and sealing members therefor An object of the invention is to reduce the adverse effects due to a difference of thermal expansion between a conductive sealing member and a light-emitting vessel and to provide a reliable high pressure mercury lamp, even when the lamp is operated at a high pressu... | 11/27/2007 |
| 7297037 | Ceramic discharge chamber for a discharge lamp A ceramic discharge chamber for a lamp, according to an exemplary embodiment of the invention, comprises a first member which includes a leg portion and a transition portion, wherein the leg portion and the transition portion are integrally formed as one piece from ... | 11/20/2007 |
| 7290899 | Light source device and display device A light source device includes a discharge tube, a reflector for reflecting a light radiated from the discharge tube, and support members for supporting the discharge tube to the reflector. The support member or the discharge tube is formed of a heat insulating stru... | 11/06/2007 |
| 7288882 | Lamp electrode and method for delivering mercury A lamp electrode adapted to deliver mercury during an assembly process has a supporting electrical lead attached to the proximal end of a metallic shell. The proximal and a distal ends of the metallic shell each lie along a central axis. A container with a vitreous ... | 10/30/2007 |
| 7282864 | Discharge lamp and control of the same A discharge tube is driven by a multiple-phase drive circuit, and includes a discharge container having an internal discharge space and multiple electrodes that are secured to the discharge container and correspond to each phase of the multiple-phase drive circuit. ... | 10/16/2007 |
| 7279838 | Discharge tubes Discharge tubes for a lamp include a body portion with a first end, a second end, and a tubular member defining an interior area. The tubular member extends along an elongated axis between the first end and the second end. The discharge tube further includes a first... | 10/09/2007 |
| 7276852 | Lamp header with start-up conductor for an ultra high pressure bulb A lamp—suitable for use within a projector or other high-light output application—includes an ultra high pressure bulb. An extension from the bulb defines a start-up bubble. A conductor is carried by the extension of the ultra high pressure bulb, generally enclo... | 10/02/2007 |
| 7253562 | Lamp which is closed on two sides The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is conn... | 08/07/2007 |
| 7247990 | Crevice-less end closure member comprising a feed-through An end closure member (1) with a feed-through (5) having a feed-through entry opening (8) and a feed-through exit opening (9) and connection means (10) for forming a gas-tight connection between the end closure member (1) an... | 07/24/2007 |
| 7226334 | Apparatus for making high buffer gas pressure ceramic arc tube An apparatus for making a ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure and RF induction heating is used to melt a frit material to form a hermetic seal. ... | 06/05/2007 |
| 7215081 | HID lamp having material free dosing tube seal A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For exa... | 05/08/2007 |
| 7211954 | Discharge tubes Discharge tubes for a lamp include a body portion with a first end, a second end, and a tubular member defining an interior area. The tubular member extends along an elongated axis between the first end and the second end. The discharge tube includes a first end por... | 05/01/2007 |
| 7204738 | Method of forming a metal halide discharge tube and apparatus therefore A method of forming a metal halide discharge tube comprises: arranging a tubular body (110) in an essentially vertical orientation; disposing a loose-fit T-plug (100) having a cylindrical portion (106) and an annular flange (104) in an up... | 04/17/2007 |
| 7189131 | High buffer gas pressure ceramic arc tube and method and apparatus for making same A ceramic arc tube for high intensity discharge (HID) lighting applications is provided wherein the arc tube contains a high buffer gas pressure. A method and apparatus for making the arc tube are also provided wherein RF induction heating is used to melt a frit mat... | 03/13/2007 |
| 7187128 | Joined bodies, luminous containers and assemblies for high pressure discharge lamps A joined body is provided, including a first member having a first joining face and sapphire exposed at the first joining face and a second member having a second joining face and sapphire or polycrystalline alumina exposed at the second joining face. The first memb... | 03/06/2007 |
| 7176630 | High-pressure discharge lamp The invention relates to a high-pressure discharge lamp (1) provided with a discharge vessel (2) made of quartz glass which encloses a discharge space (3) having an ionizable filling and an electrode (4). The discharge vessel (2) i... | 02/13/2007 |
| 7176632 | Slotted electrode for high intensity discharge lamp Operation of an HID lamp may be improved by forming a glow generating recess on an exterior side the electrode. The lamp may be of standard construction with a light transmissive lamp envelope having a wall defining an enclosed volume. At least one electrode assembl... | 02/13/2007 |
| 7170230 | Mercury-free arc tube for a discharge lamp A mercury-free arc tube for a discharge lamp has a closed chamber filled with rare gas and a metal halide containing at least Na halide or Sc halide and electrodes disposed on both end portions of the closed chamber so as to be opposed to each other, wherein the ele... | 01/30/2007 |
| 7164232 | Seal for ceramic discharge lamp arc tube An arc discharge metal halide lamp having a discharge chamber with visible light permeable walls bounding a discharge region through which walls a pair of electrode assemblies are supported with interior ends thereof positioned in the discharge region spaced apart f... | 01/16/2007 |
| 7144288 | Process for producing a discharge lamp by softening a support element outside of a discharge chamber A process for producing a discharge lamp which is designed for dielectric barrier discharges in which, during a filling step, before the discharge chamber is closed, a part of the discharge vessel is held in a raised position by a support element which is then at le... | 12/05/2006 |
