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Class 313/572 - One torr thru 760 torr


Subclass of Class 313 - Electric lamp and discharge devices
Definition: Subject matter wherein the gas or vapor pressure within
No. of patents: 82
Last issue date: 12/06/2011


1      
NumberTitleIssue Date
8072140Metal halide fill for an electric high pressure discharge lamp and associated lamp
A metal-halogenide filling for forming an ionisable filling comprises at least one inert gas, mercury and at least one halogen, the filling including at least the components Rb-halogenide and Mn-halogenide. This filling can in particular be contained in the discharg...
12/06/2011
7414368Ceramic metal halide lamp with cerium-containing fill
A metal halide lamp (10) includes a discharge vessel (12) which may be formed of a ceramic material. The vessel defines an interior space (16). An ionizable fill is disposed in the interior space. The ionizable fill includes an inert gas and a h...
08/19/2008
7382092Electric lamp which is closed at one end
The bulb (1) of the lamp which defines a longitudinal axis (A) is closed at one end by a seal (3), contact elements being fitted to the one end which are each electrically conductively connected to a power supply line (2) leading to a luminous e...
06/03/2008
7348730Metal halide lamp and luminaire
he present invention aims at providing a metal halide lamp having a configuration to achieve the following goals: to prevent the lamp from burning out during the life due to a rise in lamp voltage; and to obtain high luminous efficiency at the same time. The metal h...
03/25/2008
7345413Coated luminescent material and light-emitting device having such a luminescent material
A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm. ...
03/18/2008
7331837Coil 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
7298089High-pressure discharge lamp
A high-pressure discharge lamp has a lamp bulb of silica glass encapsulating mercury, an inactive gas, and a mixed halogen gas containing at least two halogen gases, and at least a pair of electrodes disposed in the lamp bulb in confronting relation to each other. T...
11/20/2007
7279839Short arc high-pressure discharge lamp
A short arc high-pressure discharge lamp (1) for dc operation, includes a discharge vessel (2) that has two necks (4) diametrically opposite each other, in which an anode (26) and a cathode (7) made of tungsten are melted in a gast...
10/09/2007
7226334Apparatus 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
7189131High 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
7071901Plasma display panel and imaging device using the same
A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range o...
07/04/2006
7053542Rare-gas low-pressure discharge lamp, method of manufacturing a rare-gas low-pressure discharge lamp, and application of a gas discharge lamp
A rare-gas low-pressure discharge lamp for generating ultraviolet light, in particular for cosmetic or therapeutic purposes, has a discharge vessel which is filled with rare gas and is at least partly transparent to UV light and which is at least partly coated with ...
05/30/2006
6995513Coil 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
6949887High frequency inductive lamp and power oscillator
An oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amp...
09/27/2005
6929385Apparatus and method for increasing light output over operational life of arc lamp
An apparatus and method for increasing operational life and performance of an arc tube or lamp. The method includes operating the arc tube and applying steps to encourage isothermal conditions around the arc tube. In one embodiment of the method, the arc tube (12...
08/16/2005
6888312Metal halide lamp for curing adhesives
An arc lamp assembly which includes in combination a reflector and a light source which is surrounded by said reflector. A dichroic coating on the reflector functions to reflect radiation in the range of about 300 to 600 nm. The light source is an arc lamp which con...
05/03/2005
6873109Metal halide discharge lamp, lighting device for metal halide discharge lamp, and illuminating apparatus using metal halide discharge lamp
Disclosed is a metal halide discharge lamp which essentially permits disusing mercury. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the her...
03/29/2005
6861806Super-high pressure discharge lamp of the short arc type
An arrangement with relatively high pressure tightness in a super-high pressure mercury lamp of the short arc type which is operated with an extremely high mercury vapor pressure is achieved by the super-high pressure mercury lamp having the following characteristic...
03/01/2005
6809478Metal halide lamp for automobile headlight
A metal halide lamp for an automobile headlight is provided, which includes an arc tube in which a pair of tungsten electrodes are provided at both ends and a metal halide as a main component of a luminescent material and xenon gas as a buffer gas are sealed, wherei...
10/26/2004
6803724Electrodeless lamp and lamp bulb therefor
A bulb for an electrodeless lamp comprises: an envelope through which the light can be permeated; a filled material filled in the envelope for emitting the light as being excited by high frequency energy; and buffer gas, wherein the buffer gas comprises first buffer...
10/12/2004
6756723Fluorescent lamp, method for manufacturing the same, and fluorescent lamp device
A fluorescent lamp having a stem provided with first and second lead wires for energization of an electrode and an electrically-insulating member provided therein with a first hole and a second hole larger in cross-sectional area than said second lead wire. The firs...
06/29/2004
6703771Monochromatic vacuum ultraviolet light source for photolithography applications based on a high-pressure microhollow cathode discharge
A light source with a sealed, light-transmissive tube filled with high pressure gases or high pressure gas mixtures and a microhollow cathode (MHC) discharge capable of excimer production are provided....
03/09/2004
6586756Apparatus including sulfur bulb for accelerating fading of light sensitive materials
An apparatus for subjecting light sensitive materials to visible radiation is disclosed which minimizes the amount of heat generated. The apparatus includes a source of visible radiation including at least one microwave energy responsive sulfur bulb and a...
07/01/2003
6559607Microwave-powered ultraviolet rotating lamp, and process of use thereof
The present invention is a microwave excited electrodeless bulb and a process of generating ultraviolet light with a microwave excited electrodeless bulb. A process of generating ultraviolet light with a microwave excited electrodeless bulb in accordance ...
05/06/2003
6509675Aperture lamp
A discharge lamp includes means for containing a light emitting fill, the fill being capable of absorbing light at one wavelength and re-emitting the light at a different wavelength, the light emitted from the fill having a first spectral power distributi...
01/21/2003
6498429Sodium-xenon lamp with improved characteristics at end-of-life
A mercury-free high pressure sodium vapor lamp is dosed with sodium, xenon and zinc as an elemental metal additive. The addition of the metal additive prevents an undesirable low-voltage operating mode of the sodium-xenon discharge associated with a mercu...
12/24/2002
6414436Sapphire high intensity discharge projector lamp
A high intensity discharge lamp, especially for optical projection systems, in one embodiment uses an anode electrode, a cathode electrode and a cylindrical envelope of single crystal (SC) sapphire. The fill may contain hydrogen, chlorine, sodium, scandiu...
07/02/2002
6407504High pressure discharge lamp having composite electrode
A vessel has a main body and a plugging members made of alumina. First composite electrode has a cylindrical current conductor having substantially same diameter as a diameter of the opening portion at one end of the vessel, and an electrode jointed by we...
06/18/2002
6400076Xenon metal halide lamp having improved thermal gradient characteristics for longer lamp life
A high brightness discharge light source having improved thermal balance characteristics includes a lamp envelope having an arc chamber formed therein and a pair of electrodes extending into opposite ends of the arc chamber so as to be displaced from one ...
06/04/2002
6353289Metal halide discharge lamp, lighting device for metal halide discharge lamp, and illuminating apparatus using metal halide discharge lamp
A metal halide discharge lamp which essentially permits disusing mercury is provided. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed ...
03/05/2002
6169366High pressure discharge lamp
A vessel has a main body and a plugging members made of alumina. First composite electrode has a cylindrical current conductor having substantially same diameter as a diameter of the opening portion at one end of the vessel, and an electrode jointed by we...
01/02/2001
6133694High-pressure lamp bulb having fill containing multiple excimer combinations
A high pressure lamp bulb adapted to simultaneously emit distinct emission spectra of a desired wavelength, the lamp bulb comprising an envelope for containing a fill material under pressure and a fill material, the fill material including a material capa...
10/17/2000
6072268Lamp apparatus and method for re-using waste light
The spectral energy characteristic of a discharge lamp is controlled by changing the density of the fill substance. The spectral characteristic can be shifted while substantially maintaining its shape by changing the density of the fill. A sulfur or selen...
06/06/2000
6057635Low-pressure mercury vapor-filled discharge lamp, luminaire and display device
A low-pressure mercury vapor-filled discharge lamp has a glass arc tube and a glass outer tube disposed coaxially with the arc tube forming a space therebetween. A gas is disposed in the space. The arc tube contains a gas and is coated with a phosphor. A ...
05/02/2000
6020676Lamp with light reflection back into bulb
The spectral energy characteristic of a discharge lamp is controlled by changing the density of the fill substance. The spectral characteristic can be shifted while substantially maintaining its shape by changing the density of the fill. A sulfur or selen...
02/01/2000
5962975Flat-panel display having magnetic elements
A flat-panel gas discharge display operable with either alternating or direct current includes magnetic elements within certain of the electrodes which define the discharge cell. The display may be free of implosive forces when operated at least at substa...
10/05/1999
5905333Low pressure mercury vapor electric discharge lamp and method of manufacturing the lamp
This invention provides a low pressure mercury vapor electric discharge lamp composed of a glass bulb whose inner surface is coated with a fluorescent material film, the fluorescent material film contains a fluorescent material, pyrophosphate having an av...
05/18/1999
5866984Mercury-free ultraviolet discharge source
A mercury-free ultraviolet (UV) discharge source includes an elongated envelope having a diameter in a preferred range from approximately 2 to 3 cm, containing a rare gas fill (xenon or krypton, including mixtures of these with other rare gases) at a pres...
02/02/1999
5861714Ceramic envelope device, lamp with such a device, and method of manufacture of such devices
This invention involves a new type of feedthrough-plug member for metal halide HID lamp using PCA envelopes. The construction of the lamp housing consists of a PCA envelope and specially designed axially graded alumina-metal cermet multi-layers to elimina...
01/19/1999
5841242Electrodeless lamp with elimination of arc attachment
An electrodeless lamp arrangement powered by RF energy. The lamp arrangement having an envelope that is rotated and most importantly the envelope forms the center of a coaxial arrangment used to transfer the RF energy into the envelope....
11/24/1998
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