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| Number | Title | Issue Date |
| 7394199 | Homogeneous cathode unit Cathode unit for installation in a fluorescent tube body (3) belonging to a fluorescent tube (1), which cathode unit (5) comprises a cathode screen (15a, 15, 15′-15″″) which partially surrounds an electrode (... | 07/01/2008 |
| 7112116 | Process for producing an electric lamp with outer bulb The process comprises the provision of a discharge vessel (2) which is closed off on one side, fitting a second tube over part of the discharge vessel and evacuating and filling the volume of the outer bulb via a pumping hole, which remains open in the second... | 09/26/2006 |
| 6930446 | Method for improving current stability of field emission displays A method is provided for manufacturing a field emission device, the method including operating the field emission device in a pressure of at most about 10−8 Torr for a selected period of time to evacuate outgassed materials and sealing the field emissio... | 08/16/2005 |
| 6913504 | Method for introducing mercury into a fluorescent lamp during manufacture and a mercury carrier body facilitating such method Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof, exhausting the interior of the lamp through the exhaust tubulation... | 07/05/2005 |
| 6905385 | Method for introducing mercury into a fluorescent lamp during manufacture and a mercury carrier body facilitating such method Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof and provided with a ball retention structure, exhausting the interi... | 06/14/2005 |
| 6669521 | Method of removing contaminants from a double-ended arc discharge tube A method of removing contaminants from a double-ended arc discharge tube includes the steps of providing at least one capillary channel at each end of the tube, where the ends of the tube are sealed closed except at the capillary channels, and introducing... | 12/30/2003 |
| 6580200 | Discharge lamp and manufacturing method thereof A discharge bulb including: an arc tube having a light emitting portion constructed in a manner that a light emitting substance is enclosed therein by pinch-sealing the arc tube, and discharge electrodes are oppositely arranged therein; and a shroud glass... | 06/17/2003 |
| 6254449 | Manufacturing method of image forming apparatus, manufacturing apparatus of image forming apparatus, image forming apparatus, manufacturing method of panel apparatus, and manufacturing apparatus of panel apparatus To obtain a stable image forming apparatus of a high quality without a luminance fluctuation and a color mixture due to a positional deviation, the following construction is disclosed. A method of manufacturing an image display apparatus in which a first ... | 07/03/2001 |
| 6236159 | Gas discharge panel having gas flow barriers and evacuation method thereof The gas discharge panel according to the present invention includes a pair of substrates, a plurality of barrier ribs, a sealing member, and two gas flow barriers. One of the substrates has a first vent hole and a second vent hole provided in a peripheral... | 05/22/2001 |
| 6172460 | Display device Display device, in particular a PALC device, having a plasma space provided with a capsule (46) comprising getter material for supplying guest material to the plasma, e.g. H2, HD, D2. The capsule remains closed until the critical hig... | 01/09/2001 |
| 6133690 | Display screen comprising a source of electrons with microtips, capable of being observed through the microtip support, and method for making this source A display screen which includes a microtip electron source which is observerable through the microtip support. The screen includes a cathodoluminescent anode, transparent support and cathode conductors formed on the support. The conductors are meshed acco... | 10/17/2000 |
| 6114694 | Device having field emission type cold cathode and vacuum tank exhausting method and system in the same The present invention discloses a field emission type cold cathode incorporated device, which comprises a field emission type cold cathode having a number of electron emitting sections, said sections having sharp projections, and a vacuum tank for placing... | 09/05/2000 |
| 6093072 | Loading process to provide improved vacuum environment A pump is used to reduce the pressure in a field emission display package. The package is then filled with a gas or gas mixture, such as nitrogen and hydrogen. The package is then pumped again, to reduce the pressure in the package to the desired pressure... | 07/25/2000 |
| 5998924 | Image/forming apparatus including an organic substance at low pressure An image-forming apparatus includes an electron source including one or more than one electron-emitting devices on a substrate, each electron-emitting device having a pair of oppositely disposed device electrodes, an electroconductive film connected to th... | 12/07/1999 |
| 5993278 | Passivation of quartz for halogen-containing light sources Lifetime of halogen containing VUV, UV, visible or IR light sources can be extended by passivating the quartz or glass gas containers with halogens prior to filling the quartz with the halogen and rare gas mixtures used to produce the light.... | 11/30/1999 |
| 5964630 | Method of increasing resistance of flat-panel device to bending, and associated getter-containing flat-panel device A flat-panel device is fabricated by a process in which a pair of plate structures (40 and 42) are sealed along their interior surfaces (40A and 42B) to opposite edges (44A and 44B) of an outer wall (44) to form a compartment. Subsequently, exterior suppo... | 10/12/1999 |
| 5580290 | Method for recrystallization of tungsten filaments for incandescent lamps A method for recrystallization of tungsten filaments for incandescent lamps includes the steps of providing a tungsten filament fixed to lead-in wires, providing a light-transmitting glass envelope having a closed first end and an open second end, the fir... | 12/03/1996 |
| 5564958 | Method for manufacturing display device A method for manufacturing a display device is available that is capable of remarkably improving life characteristics of a display device. A display device placed in a chamber is evacuated to about 10-7 Torr. Then, reducing gas is introduced in... | 10/15/1996 |
| 5505648 | Contamination-free method of making arc tubes In the manufacture of arc tubes for use as light sources of vehicle headlamps, there is first prepared a semifinished arc tube by inserting one electrode assembly into a tubular glass envelope through one end thereof and by sealing this end. The semifinis... | 04/09/1996 |
| 5412289 | Using a magnetic field to locate an amalgam in an electrodeless fluorescent lamp An electrodeless SEF fluorescent discharge lamp of the type having an envelope with a re-entrant cavity formed therein for containing an excitation coil includes an amalgam positioned for maintaining an optimum mercury vapor pressure during lamp operation... | 05/02/1995 |
| 5314363 | Automated system and method for assembling image intensifier tubes An automation system for assembling photocathodes into vacuum tube housings so as to produce vacuum tube assemblies. Photocathodes are loaded, cleaned and otherwise processed in a first evacuated chamber. Similarly, vacuum tube housings are loaded, cleane... | 05/24/1994 |
| 5160287 | Color picture tube manufacturing method To improve the conventional manufacturing method for a color picture tube in which (1) the panel with a phosphor screen is provided with a shadow mask and baked, (2) the panel and funnel having the necessary parts mounted in the tube, are sealed with frit... | 11/03/1992 |
| 5064395 | Compact outer jacket for low wattage discharge lamp A compact arc discharge lamp may be formed with an inner lamp capsule and an outer envelope. One or more of the leads to the inner capsule may be sheathed to insulate the lead from improper arc over. The sheath may passed through the seal of the outer env... | 11/12/1991 |
| 4030789 | Method of manufacturing an electric discharge tube In a method of manufacturing an electric discharge tube in which at least one of the components of the tube is subjected to a treatment in a vessel sealed from the atmosphere. The vessel consists of at least two parts which are sealed against each other w... | 06/21/1977 |
| 4018490 | Gas discharge display panel fabrication An in situ process is disclosed for fabricating gas discharge display panels in a sequential seal, bake-out and backfill mode of operation. The single thermal cycle process involves placing unassembled panel parts in a controlled gas ambient furnace syste... | 04/19/1977 |
| 4005324 | Tungsten-fluorine lamp with native retained oxygen therein and method of manufacture A tungsten fluorine lamp is manufactured by a process including the steps of forming a glass bulb and tungsten filament-lead set to have a controlled content of native oxygen thereon; locating and sealing the tungsten filament and lead set in the bulb and... | 01/25/1977 |
