Class 313/611 - Constriction means

Subclass of Class 313 - Electric lamp and discharge devices
Definition: Subject matter under subclasses 609+ wherein the
No. of patents: 35
Last issue date: 07/27/2010

Number	Title	Issue Date
7764018	Gas discharge tube A gas discharge tube which generates discharge between an anode 24 and a cathode 56 disposed within a sealed container 12 in which a gas is sealed, includes a cylindrical part 28 restricting the discharge path, the cylindrical part being ...	07/27/2010
7569993	Gas discharge tube with discharge path limiting means In a gas discharge tube there is carried out narrowing of the discharge path with cooperation of the first opening 20 and second opening 12 in order to obtain higher luminance of light. Further, in order to maintain excellent starting-properties of a l...	08/04/2009
7382096	Flat fluorescent lamp and liquid crystal display device having the same A flat fluorescent lamp includes a lamp body and an external electrode. The lamp body includes a plurality of discharge spaces. Each of the discharge spaces includes a first discharge region having a first space width and a first space length, a second discharge reg...	06/03/2008
7288880	High-luminance gas discharge tube with diaphragm elements within discharge path In a gas discharge tube, a first discharge path-induction portion is arranged between a first discharge path-limit portion and a second discharge path-limit portion. A voltage is applied to the first discharge path-induction portion from the outside. As a result, an...	10/30/2007
7288893	Gas discharge tube A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 52 disposed inside a sealed container 12 in which gas has been sealed. The gas discharge tube 10 includes ...	10/30/2007
7271542	Gas discharge tube A gas discharge tube 10 of the present invention generates an electric discharge between an anode part 24 and a cathode part 56 disposed inside a sealed container 12 in which gas has been contained. The gas discharge tube 10 compri...	09/18/2007
7271541	Surface light source with hollow electrode component for use in liquid crystal display devices A surface light source device includes a first substrate, a second substrate and a hollow electrode. The second substrate is combined with the first substrate to form a plurality of discharge spaces. The second substrate includes a plurality of recesses. The hollow ...	09/18/2007
7164223	Multi-tube fluorescent discharge lamp A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path,...	01/16/2007
7034461	Ceramic arc tube with internal ridge A ceramic arc tube for a metal halide discharge lamp is described wherein the lower end well of the arc tube has an internal barrier ridge which substantially prevents migration of the metal halide condensate into the central region of the discharge chamber during v...	04/25/2006
6956326	Gas discharge tube having insulator between aperture members The gas discharge tube in accordance with the present invention comprises at least two electrically conductive aperture members disposed within a thermoelectron transmission path between a cathode and an anode, and an insulator for electrically insulating the electr...	10/18/2005
6924598	Apparatus for providing a kinetic lightning effect An apparatus for providing a visual lightning effect includes a first chamber and a second chamber, where a passageway connects the first chamber and the second chamber. An inert gas is provided within the first chamber, the second chamber, and the passageway. A fir...	08/02/2005
6873107	Gas discharge tube having multiple stem pins In order to obtain light of a high luminance in a gas discharge tube of the present invention, a discharge path is narrowed by a first opening 18 and a second opening 13 in collaboration. Further, in order to provide favorable startability in a lamp ev...	03/29/2005
6765633	Flat lamp for emitting lights to a surface area and liquid crystal display using the same A flat lamp for emitting light to a surface area of a liquid crystal display device includes a bottom having a channel uniformly crossing an entire surface of the bottom, an arc-discharging gas is disposed within the channel, a cover disposed upon an upper junction ...	07/20/2004
6664726	Fluorescent lamp with a by-pass means in the discharge space resulting in low starting voltage This invention relates to a fluorescent lamp with a discharge vessel enclosing a discharge path and containing a gas fill. The gas fill may be by excited by a discharge arc. The discharge vessel has at least two sections located adjacent to each other. Th...	12/16/2003
6268694	Cold cathode fluorescent lamp, back-light emitting device with the cold cathode fluorescent lamp and note-type personal computer with the back-light emitting device There is provided a cold cathode fluorescent lamp including a transparent tube including first and second light-emitting areas defined by partitioning an inner space of the transparent tube, a first terminal electrode positioned in the first light-emittin...	07/31/2001
5972469	Baffle for eliminating interference ring(s) from the output light pattern of a deuterium lamp An improved baffle (24) for directing the light discharged from a deuterium lamp includes a plate-like member configured as a cylindrical segment (25), an aperture (27) provided through a central portion (26) of the member, and a flattened portion (26) ab...	10/26/1999
5763139	Plasma display panel and method for manufacturing the same A plasma display panel includes a light-transmittable first substrate, a plurality of first electrodes provided in correspondence with pixels on the first substrate and partition walls provided on the first substrate so that each of the partition walls su...	06/09/1998
5294867	Low pressure mercury vapor discharge lamp containing an amalgam A compact low pressure mercury vapor discharge lamp which utilizes an amalgam for reducing the vapor pressure of mercury by absorption. The lamp has a tubulation positioned at a location spaced from the lamp electrodes which is in communication with an ar...	03/15/1994
4965484	Vapor discharge lamp with gradient temperature control An end-viewed vapor discharge lamp having a differential temperature control structure that removes heat more effectively from a base end of the lamp than from the light emitting output end of the lamp. The lamp envelope which contains an excitable vapor,...	10/23/1990
4961024	Circular fluorescent lamp with oval section of tube A circular fluorescent lamp has a fluorescent tube of a generally circular shape having electrodes fixed gastight in both of its ends respectively to enclose inert gas and mercury therein. A cap is mounted to bridge between the tube ends. The fluorescent ...	10/02/1990
4825125	Discharge lamp having multiple constrictions A low pressure discharge lamp, particularly a compact fluorescent lamp, having a plurality of constricting portions axially spaced apart and extending about the circular periphery of the envelope. The constricting portions, which include defined end segme...	04/25/1989
4816719	Low pressure arc discharge tube with reduced ballasting requirement A low pressure arc discharge tube having structural means located within the envelope for causing a positive shift in the volt-ampere characteristic curve of the arc discharge tube. The shift in the volt-ampere curve causes a decrease in the impedance nec...	03/28/1989
4801841	Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window A gas discharge lamp for emitting vacuum UV radiation, comprising a lamp body filled at low pressure with a gas capable of emitting radiation in the vacuum UV range (e.g., argon), electrodes within the lamp body for passing an electric field across the ga...	01/31/1989
4786841	Low-pressure arc discharge lamp having increased surface brightness An arc discharge lamp having a sealed envelope including a major body portion and at least one minor transverse end portion. A non-specular light diffusing surface is axially located between the minor transverse end portion and one of the lamp electrodes....	11/22/1988
4761548	Optically triggered high voltage switch with cesium vapor An electric arc discharge switch having less susceptibility to electrode erosion and capable of being optically triggered. In a first embodiment the switch includes a gas tight body defining a hollow interior with electrodes mounted onto the body and form...	08/02/1988
4524301	Compact fluorescent lamps A compact fluorescent lamp composed of at least four tubes having their ends hermetically sealed in receptacles. Two of the tubes have electrodes sealed therein and passages formed in the receptacle connect the other ends of the tubes to complete the arc ...	06/18/1985
4515477	Visibility meter and components used therein A discharge lamp with high intensity and high local stability is disclosed, which is suitable for use as a light source in a visibility meter. A light receiver also suitable for use in a visibility meter is disclosed. The discharge lamp has a discrete ano...	05/07/1985
4508993	Fluorescent lamp without ballast It is known that electrical discharges in capillary tubing shows a positive volt-ampere characteristic even for low pressure gas fills. In contrast, conventional fluorescent lamps exhibit a negative volt-ampere characteristic and, accordingly, require spe...	04/02/1985
4504768	Electrodeless lamp using a single magnetron and improved lamp envelope therefor A microwave generated electrodeless lamp using a single magnetron, and an improved lamp envelope therefor. An elongated lamp envelope containing a plasma forming medium is disposed in a microwave chamber comprised of a reflector and mesh. The reflector in...	03/12/1985
4403167	Segmented discharge tube devices A segmented discharge tube device is provided, particularly for the discharge tube of a laser, in which a number of electrically isolated aluminium segments presenting a passage through which plasma may pass are located within an aluminium tube with heat ...	09/06/1983
4366408	Arc discharge lamp having large anode radiating surface An electric arc discharge lamp comprises a cathode (2), an apertured diaphragm (4) and a cup shaped apertured anode (6). The anode (6) is provided with a flared extension (7) and is mounted on leads passing through ceramic tubes (14) (FIG. 4). The cathode...	12/28/1982
4199703	Low inductance, high intensity, gas discharge VUV light source A gas discharge vuv light source is disclosed having low inductance and a high intensity output covering a range from 90 A to 6000 A. The source comprises a capillary defining a first bore removably, and at least partially, mounted within an air-cooled ce...	04/22/1980
4170743	High-current, low pressure, mercury discharge lamp with pressure compensation space A heavy-current mercury low-pressure lamp with pressure equalization space, wherein the anode and cathode electrodes are arranged one behind the other in a bulb and wherein the one of the two arms of the discharge space projects coaxially into the bulb an...	10/09/1979
4143339	Laser plasma tube having internal gas path Several embodiments of a gas laser plasma tube are described having one or more internal gas return paths doubled back upon themselves within the structure which defines the gaseous discharge bore, to increase their length so that electrical gaseous disch...	03/06/1979
3988633	Fluorescent lamp with envelope grooves A low pressure discharge lamp, particularly a fluorescent lamp, having a plurality of separate and continuous grooves along its length each of which is formed for 360° around the envelope. The groove configuration maintains a generally arcuate cross-sect...	10/26/1976

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Class 313/611 - Constriction means