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11. 发明专利

JP2000311655A ELECTRIC INTRODUCTION BODY FOR LAMP, AND LAMP 失效
公开(公告)号：JP2000311655A
公开(公告)日：2000-11-07
申请号：JP11760899
申请日：1999-04-26
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO , MORIMOTO YUKIHIRO
IPC分类号： H01J61/36
摘要： PROBLEM TO BE SOLVED: To provide an electric introduction body for a lamp that can provide a sufficient airtightly fitting condition between an electricity feeding rod and a closing member, and can stably maintain the airtightly fitting condition for a long time even at high temperatures and to provide a lamp having a long service life. SOLUTION: This electric introduction body comprises a pole-like closing member and an electricity feeding rode integrally fixed to the closing member so as to extend penetrating it in its lengthwise direction, and the closing member is formed of a functionally gradient material with the mixing ratio of silica with molybdenum continuously or gradually varied in the lengthwise direction. The functionally gradient material has a specific area where the concentration of the molybdenum and the average cross-sectional area of silica particles of sizes each having an area of 10 μm2 or more in an arbitrary cross section are defined. For this lamp, the airtightly sealing structure of its bulb is formed of the electricity introduction body for the lamp.

12. 发明专利

JP2000182566A BULB PROVIDED WITH SEALING BODY OF GRADIENT FUNCTIONAL MATERIAL 失效
公开(公告)号：JP2000182566A
公开(公告)日：2000-06-30
申请号：JP28742099
申请日：1999-10-07
申请人： USHIO ELECTRIC INC
发明人： TAGAWA KOJI , SATO HIROTO , SAITO KATSUYA
IPC分类号： H01J61/36 , H01K1/38
摘要： PROBLEM TO BE SOLVED: To improve the lifetime of bulb while preventing the generation of contact failure at a power supplying part and breakdown of a bonding part to a blocking body by providing an acid resistant layer in a constant area of a metal external lead directed outward from an end surface of a blocking body provided in the bulb and made of the gradient functional material having a nonconductive end and a conductive end. SOLUTION: One end of a sealing body 23 is conductive including molybdenum component, and silica component is increased as it comes close to the other end so as to be nonconductive. The nonconductive end surface is arranged so as to face to a discharge space, and welded to a side tube 11 by a burner in the nonconductive area including molybdenum less than 2 vol.% of content. An electrode core rod 26 is integrally formed while having an internal lead part 22 extended from an electrode 21 to the sealing body 23 and an external lead part 24 projected and extended from the outer end surface of the sealing body 23, and the electrode core rod 26 is fixed by burning for fastening in the conductive area of the sealing body 23 through the center hole of the sealing body 23. A surface of the external lead part 24 is provided with an acid resistant layer 30 in an area having probability of oxidization of the external lead part 24 from the sealing body 23 side.

13. 发明专利

JPH11312492A DISCHARGE LAMP 失效
公开(公告)号：JPH11312492A
公开(公告)日：1999-11-09
申请号：JP11901298
申请日：1998-04-28
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO , KOMIYA MASANOBU , SUGITANI AKIHIKO
IPC分类号： H01J61/36
摘要： PROBLEM TO BE SOLVED: To provide a discharge lamp that can prevent the breakage of a closing body by eliminating or decreasing the outside release of evaporated substance from the sealing body formed from a functionally gradient material. SOLUTION: This discharge lamp is provided with a bulb 10 having an arc tube part 11 and sealing tube parts 12 continuously connected to both ends, and cylindrical closing bodies 20 arranged in the sealing tube parts 12 of the bulb 10, and the stopper 20 each are formed from a functionally gradient material having an insulating part 21 at its inner end side and an conductive part 22 at its other end side, and a sealing structure is formed by welding each of the sealing tube parts 12 of the bulb 10 to the insulating part 21 of the stopper 20. In this case, a sleeve part 13 having an inside diameter larger than the outside diameter of the stopper 20 is so formed at the outer end of each of the sealing tube parts 12 of the bulb 10 as to extend outward in the axial direction.

14. 发明专利

JPH11297269A HIGH-PRESSURE MERCURY LAMP 失效
公开(公告)号：JPH11297269A
公开(公告)日：1999-10-29
申请号：JP11131798
申请日：1998-04-08
申请人： USHIO ELECTRIC INC
发明人： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
IPC分类号： H01J61/20 , H01J61/82 , H01J61/88
摘要： PROBLEM TO BE SOLVED: To satisfactorily stabilize the ark during lighting in a high-pressure mercury lamp having an extremely high mercury vapor pressure and also an extremely high tube wall load. SOLUTION: A pair of tungsten electrodes 4 is arranged opposite to each other in a discharge vessel 2 consisting of quartz glass, 0.16 mg/mm or more of mercury and a rare gas are sealed in the discharge vessel 2. The tube wall loads is 0.8 W/cm or more. A metal halide having an ionization voltage 0.87 times or less the ionization voltage of mercury is added to the discharge vessel 2 within the range of 2×10 -7×10 μmol/mm .

15. 发明专利

JPH11297268A HIGH-PRESSURE MERCURY LAMP 失效
公开(公告)号：JPH11297268A
公开(公告)日：1999-10-29
申请号：JP11131698
申请日：1998-04-08
申请人： USHIO ELECTRIC INC
发明人： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
IPC分类号： H01J61/20 , H01J61/12 , H01J61/30 , H01J61/82 , H01J61/88
摘要： PROBLEM TO BE SOLVED: To provide a high-pressure mercury lamp capable of satisfactorily preventing the clouding of the quartz glass constituting a discharge vessel and its development to prevent a sudden reduction in screen illumination in the use as a light source for liquid crystal projector. SOLUTION: This high-pressure mercury lamp 1 comprises a discharge vessel 2 consisting of quartz glass, a pair of tungsten electrodes 4 arranged opposite to each other in the discharge vessel 2, and 0.16 mg/mm or more of mercury, a rare gas, and a halogen sealed in the discharge lamp 2, and its tube wall load is 0.8 W/cm or more. In this lamp 1, the sealing quantity of the halogen is set within the range of 2×10 -7×10 μmol/mm .

16. 发明专利

JPH08250266A ROD HEATER 失效
公开(公告)号：JPH08250266A
公开(公告)日：1996-09-27
申请号：JP8208495
申请日：1995-03-15
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO , TANIGUCHI HIROYASU , KANO SHOJI
IPC分类号： H05B3/00 , H05B3/14 , H05B3/44
摘要： PURPOSE: To simultaneously satisfy both demands for shortening the heating time and saving energy for an apparatus by forming a heat generating resistor pattern containing a conductor component on an insulating film on the external surface of a cylindrical substrate to compose a rod heater. CONSTITUTION: An insulating film 12 is formed on the surface of a cylindrical substrate 11 made of a metal, a heat generating resistor pattern 13 containing silver as a conductive component is formed on the insulating film 12, and a protective film 14 is formed on the resulting film. A separater layer 15 and electricity supply rings 31, 32 to carry electric current to the heat generating resistor pattern 13 are formed on the protective film 14. Furthermore, both end parts of the cylindrical substrate 11 are closed by caps 41, 42 to give a rod heater 10. Since the rod heater 10 can be contact-heated by the heat generating resistor pattern without having an air layer between them, the thermal conduction speed among other component parts of the heat generating resistor pattern and the rod heater 10 is high and heat loss is low.

17. 发明专利

JPH0836319A HEATING AND FIXING DEVICE 失效
公开(公告)号：JPH0836319A
公开(公告)日：1996-02-06
申请号：JP19124394
申请日：1994-07-22
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO
IPC分类号： G03G15/20 , G05D23/19 , H05B3/00
摘要： PURPOSE:To shorten a preheating time and to save the power of a device by laminating plural exothermic resistor patterns whose heat generating regions are different according to the size of a recording material with insulating films, on the outside surface of a cylindrical substrate, so as to form a heating roller. CONSTITUTION:In a device allowing the recording material on which a toner image is formed to pass through between the heating roller and a pressure roller, to attain fixing, the heating roller is constituted in such a manner that the exothermic resistor patterns 13a and 13b whose heat generating regions are different in accordance with the size of the recording material are laminated with the insulating films 12a and 12b made of silica on the outside surface of the cylindrical substrate 11 composed of an aluminium alloy including magnesium and silicon by a very small amount. These exothermic resistor patterns 13a and 13b are composed of an electrifying body in 5-20mum thickness which has a silver palladium alloy as a conductor. As a preheating operation at the time of fixing the recording material of a maximum size (B4), a current is made to flow in the exothermic resistor pattern 13b and for a small-sized recording paper (A4), the current is made to flow the exothermic resistor pattern 13a to control a temp. and heat the heating roller.

18. 发明专利

JPH06161311A TONER FIXING METHOD 失效
公开(公告)号：JPH06161311A
公开(公告)日：1994-06-07
申请号：JP33379792
申请日：1992-11-20
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO
IPC分类号： G03G13/20 , G03G15/20
摘要： PURPOSE:To prevent the uneven fixing by the various densities of images, to eliminate the danger of scorch and ignition of the part where the image density is high and to improve the heating efficiency of unfixed toners so as to save electric power by specifying the relation between the relative spectral radiation flux on a recording material and the spectral absorbance of the recording material. CONSTITUTION:The value A obtd. by integrating the product of the relative spectral radiation flux on the recording material of a radiation heating source, designated as S(lambda) and the spectral absorbance of the recording material, designated asalpha(lambda), from 0.3mum up to 20mum with respect to a long wave lambda is set at 1.7 to 3.5. The value A is 0.5 to 1.0 if the recording material is white printing paper and radiation light is near IR rays. The ultimate temp. difference between the part where the image density is low and the part where the density is high attains about 30 to 50 deg.C at which uniform fixing performance is hardly obatinable in such a case. The ultimate temp. difference decreases gradually if the value A is gradually increased by changing the shape of the relative spectral radiation flux distribution of the irradiation light. If, however, the value A exceeds about 2.5, the ultimate temp. is conversely higher this time in the part where the image density is small than the part where the density is high.

19. 发明专利

JP2003132844A FOIL SEALED LAMP 审中-公开
公开(公告)号：JP2003132844A
公开(公告)日：2003-05-09
申请号：JP2001332660
申请日：2001-10-30
申请人： USHIO ELECTRIC INC
发明人： SATO HIROTO
IPC分类号： C03C17/06 , H01J61/36
摘要： PROBLEM TO BE SOLVED: To provide a foiled sealed lamp, having a sealing part which has strong adhesion for sticking a metal foil to a silica glass and is resistant to high pressure and high temperature of light-emitting gas, when the lamp is operating. SOLUTION: The foil sealed type lamp comprises a filament or an electrode in a silica glass vessel, an inner lead connected to the filament or electrode, a metal foil connected to the inner lead. The silica glass container is sealed at a part, where the metal foil is placed. The essential elements of metallic atoms of the foil turns into cations, to deposit a diffused transition layer on the interface of the foil and the glass.

20. 发明专利

JP2001126676A HALOGEN INCANDESCENT LAMP AND METHOD OF FABRICATING IT 失效
公开(公告)号：JP2001126676A
公开(公告)日：2001-05-11
申请号：JP30139799
申请日：1999-10-22
申请人： USHIO ELECTRIC INC
发明人： ODAGAKI TORU , KAWAMURA TADAKAZU , TAGAWA KOJI , SATO HIROTO , FURUKAWA YASUO , KUMADA TOYOHIKO
IPC分类号： H01K1/42 , H01K3/20
摘要： PROBLEM TO BE SOLVED: To provide a halogen incandescent lamp with a firm sealing obtained by an enclosure. SOLUTION: A method of fabricating a halogen incandescent lamp comprises the steps of fixedly mounting a filament coil assembly in a glass tube along its central axis, closing both ends of the glass tube, setting the internal atmosphere of the glass tube to a prescribed state, attaching the wall of the glass tube to the enclosure by means of fusion to form an airtight sealing, and removing the part of the sealing positioned outside the airtight sealing. The halogen incandescent lamp has a very small skirt widely spread outside from the airtight sealing.

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