-
公开(公告)号：DE602005018003D1
公开(公告)日：2010-01-14
申请号：DE602005018003
申请日：2005-10-20
Applicant: USHIO ELECTRIC INC
Inventor： SUZUKI YOSHIKAZU , SUGAYA KATSUMI , ARIMOTO TOMOYOSHI
IPC: H05B41/292 , H01J61/88 , H02M7/48 , H05B41/24 , H05B41/288
Abstract: A device for operating a discharge lamp of the short arc type having a feed device which supplies a direct current to the discharge lamp when operation starts and an alternating current afterwards, in which the feed device supplies a direct current which is smaller than the rated current to the discharge lamp at the start of operation, and a direct current which is at least as large as the rated current, afterwards. A control which ascertains whether the discharge lamp at the start of operation is in a hot or cold start operating state, and which establishes one of the following parameters based on whether the hot or cold operating state ascertained to exist: the value of the direct current which is at least as great as the rated current; the feed duration of the direct current which is at least as great as the rated current.
-
公开(公告)号：EP1049134A4
公开(公告)日：2006-08-02
申请号：EP99947906
申请日：1999-10-14
Applicant: USHIO ELECTRIC INC
Inventor： TAGAWA YUKIHARU , SUGAYA KATSUMI , SATO HIROTO
CPC classification number: H01J9/323 , H01J61/36 , H01J61/366 , H01J61/822 , H01K1/40
Abstract: A lamp package (10, 30) includes a sealing member consisting of a functionally gradient material, and a lead rod (13, 32) bonded to the sealing member (11, 31), which is a laminate of insulating inorganic substance layers and a plurality of compound layers consisting of a conductive inorganic component and an insulating inorganic component. In the sealing member, the proportion of the conductive organic component increases in the direction of lamination and a hole is formed extending in the same direction to receive the lead rod. A sleeve made of refractory metal is inserted integrally between the hole and the lead rod. The package made of the functionally gradient material forms a hermetic enclosure of a lamp.
-
公开(公告)号：JP2003086135A
公开(公告)日：2003-03-20
申请号：JP2001276772
申请日：2001-09-12
Applicant: USHIO ELECTRIC INC
Inventor： MORIMOTO YUKIHIRO , SUGAYA KATSUMI
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp having high durability of an airtight property in an airtight seal part and capable of providing a long use life. SOLUTION: This discharge lamp is provided with a discharge vessel formed of silica glass and having an arc tube part and sealed parts. The discharge lamp is characterized in that the airtight seal parts are formed by embedding metal foil pieces in the seal parts of the discharge vessel, and on at least one surface of each metal foil piece, a coating film comprising at least one kind of metal oxide selected from titanium oxide, lanthanum oxide and tantalum oxide, zirconium oxide containing yttrium oxide, and hafnium oxide containing yttrium oxide is formed. The metal oxide forming the coating film is preferably crystalline. The coating film is preferably formed by interlaying a lower layer film formed of aluminum oxide or yttrium oxide.
-
公开(公告)号：JP2003109504A
公开(公告)日：2003-04-11
申请号：JP2001302671
申请日：2001-09-28
Applicant: USHIO ELECTRIC INC
Inventor： SUGAYA KATSUMI , HORIKAWA YOSHIHIRO , KOMIYA MASANOBU , MORIMOTO YUKIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a high pressure discharge lamp that can fill precisely halogen of an objective quantity and can suppress entering of impurities that give bad effect to the lighting condition obtained of the high pressure discharge lamp, and a high pressure discharge lamp that can maintain good lighting condition for a long time. SOLUTION: This is a manufacturing method of a high pressure discharge lamp in which the airtight sealing part is formed of a discharge electrode assembly constructed of a metal foil and a lead rod at the sealing tube part of the discharge container in which the sealing tube part is connected to the light- emitting tube part and halogen is filled in the light-emitting tube part. The method comprises a process in which halogen introducing gas made of halogenated hydrogen is introduced in the discharge-container forming tube at one end of which one of the airtight sealing parts is formed and, by cooling a part of the discharge-container forming tube, the halogen introducing gas is liquidized and, in that state, the other airtight sealing part is formed at the other end of the discharge-container forming tube.
-
公开(公告)号：JP2000195468A
公开(公告)日：2000-07-14
申请号：JP23272299
申请日：1999-08-19
Applicant: USHIO ELECTRIC INC
Inventor： TAGAWA KOJI , SUGAYA KATSUMI , SATO HIROTO
Abstract: PROBLEM TO BE SOLVED: To prevent crack generation on a sealing member and to obtain sufficient thermal durability, by sticking a lead rod integrally in the state of a sleeve-shaped metal member comprising a high melting-point metal interposed between the circumferential face of the lead rod inserted into a hole of the sealing member and the hole of the sealing member. SOLUTION: A sealing member 11 is composed of functionally gradient material having, on one end, an electrode inserting hole formed so as to extend in such a direction that the content ratio of a conductive inorganic material component is increased from the end face of an insulating inorganic material layer, and on the other end, an external lead rod inserting hole extending from the end face of a mixed powder layer, in which the content ratio of the conductive inorganic material component is the highest, toward the insulating inorganic material layer. The base end side part 21 of an electrode 13, where a discharge electrode 12 is formed, is inserted into an electrode inserting hole of the sealing member 11, and stuck integrally in the state where a sleeve-shaped metal member 14 comprising a high melting-point metal is interposed between the circumferential face of the base end side part 21 of the electrode 13 and the inner face of the electrode inserting hole of the sealing member 11.
-
Patent Agency Ranking
公开(公告)号：JP2002358931A
公开(公告)日：2002-12-13
申请号：JP2001167085
申请日：2001-06-01
Applicant: USHIO ELECTRIC INC
Inventor： MORIMOTO YUKIHIRO , SUGITANI AKIHIKO , YANO KAZUAKI , SATO HIROTO , SUGAYA KATSUMI
Abstract: PROBLEM TO BE SOLVED: To provide an ultrahigh pressure mercury lamp which can gain a long life of use and high durability of air tightness in an air-tight sealing part. SOLUTION: With the ultrahigh pressure mercury lamp equipped with a discharge vessel made of a silica glass having a light-emitting tube and a sealing part, with mercury by not less than 0.16 mg/mm , rare gas, and halogen of by 2×10 to 7×10 μmol/mm sealed in the inner part space and with its inner pressure not less than 1×10 Pa, an air-tight sealing part is formed with an electrode rod extended in the sealing part and connected with a metal foil, and the surface of the metal foil is not exposed by a silica film having thickness of 80 to 2500 nm. The silica film is preferred to be formed by silica attached on the surface of the metal foil connected with the electrode rod, and halogen is preferred to be bromine.
-
公开(公告)号：JP2002063867A
公开(公告)日：2002-02-28
申请号：JP2000247728
申请日：2000-08-17
Applicant: USHIO ELECTRIC INC
Inventor： TAGAWA KOJI , FUKAGAWA TOMOKO , SUGAYA KATSUMI
IPC: H01J61/36
Abstract: PROBLEM TO BE SOLVED: To manufacture an electricity lead-in body for a quartz glass, without having to use a means such that laminates the mixture of powders of insulating inorganic material and conductive inorganic material with different mixing ratio successively like gradient function material, or deposits the slurry of above materials with concentration gradient utilizing the phenomenon that the deposition speed differs in accordance with gravity. SOLUTION: To the holes formed at both bottom surface of an approximately columnar sealing body 22 made of quartz glass as a main component, processed by sintering insulating material with a thermal expansion coefficient smaller than that of quartz glass and conductive material with thermal expansion coefficient larger than that of quartz glass, an inner lead 13 with an electrode 15 at its top end and an outer lead 14 supplying electricity from outside, are inserted. The lead-in body for a lamp is characterized by fixing the contacting part of the sealing body, the outer lead, and the inner lead by sintering with the interposition of metallic member.
-
公开(公告)号：JP2002008591A
公开(公告)日：2002-01-11
申请号：JP2000186052
申请日：2000-06-21
Applicant: USHIO ELECTRIC INC
Inventor： TAGAWA KOJI , SUGAYA KATSUMI
IPC: H01J61/36
Abstract: PROBLEM TO BE SOLVED: To provide a sealing body of a gradient function material for a lamp which prevents oxidation of a sealing member composed of gradient function material and further prevents the sealing member from becoming light absorption body to light utilization ratio and to provide a long-life lamp with high utilization ratio of light for a lamp with an airtight sealing structure formed using the sealing body of gradient function material for the lamp. SOLUTION: With the sealing body 10 of gradient function material for the lamp consisting of a sealing member 11 made of a gradient function material and a lead bar 13 fixed to this sealing member 11, at least a part of a surface of the sealing member 11 is coated with an oxidation resistant film 20 made from glass phase and a phase of crystal of metal oxide. Especially, the metal oxide is selected from a group of metal oxides composed of zirconium oxide (ZrO2), hafnium oxide (HfO2), aluminum oxide (Al2O3). Further, at least a part of the sealing member 11 makes use of the sealing body 10 of gradient function material for the lamp coated with the oxidation resistant film 20, to form an airtight sealing structure of a lamp.
-
公开(公告)号：JP2001240428A
公开(公告)日：2001-09-04
申请号：JP2000051231
申请日：2000-02-28
Applicant: USHIO ELECTRIC INC
Inventor： KUMADA TOYOHIKO , TAGAWA KOJI , SUGAYA KATSUMI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a sealing material having a long life in sealing a quartz glass where a perfect sealing including pressure resistance comparable to quartz bulb, dimensional accuracy and airtightness is achieved without deformation. SOLUTION: Features of the sealing material are shown below: content of SiO2 >=77 mol%; coefficient of linear expansion A±6×10-7 K-1 (A: quartz value) softening point is lower than melting point of quartz glass; and contact angle with quartz
-
公开(公告)号：JP2001236926A
公开(公告)日：2001-08-31
申请号：JP2000043225
申请日：2000-02-21
Applicant: USHIO ELECTRIC INC
Inventor： TAGAWA KOJI , IKEUCHI MITSURU , KUMADA TOYOHIKO , SUGAYA KATSUMI
IPC: H01J61/36
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp that can have a sufficiently large pressure-proofing strength at welded portions between quartz glass and molybdenum foil that form sealing parts of the discharge vessel to prevent its destruction and gives a high working pressure of the lamp. SOLUTION: The discharge lamp is equipped with a discharge vessel made of quartz glass that has a luminous tube part and a sealed part connected thereto. An electrode bar with an electrode disposed within the luminous tube at the tip is joined to an end, and together, molybdenum foil joined with an external lead bar at the other end has been sealed at the seal part of the discharge vessel. Surface of the molybdenum foil has been welded to the quartz glass that forms the seal portion in the state of interposing a layer coated with an oxide.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.023 seconds)
