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公开(公告)号：DE69911678T2
公开(公告)日：2004-07-29
申请号：DE69911678
申请日：1999-03-29
Applicant: USHIO ELECTRIC INC
Inventor： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
Abstract: A high pressure mercury lamp with an extremely high mercury vapor pressure and extremely high wall load in which the arc during operation is advantageously stabilized is achieved in a high pressure mercury lamp having a discharge vessel of fused silica glass which contains a pair of opposed tungsten electrodes, mercury in an amount at least equal to 0.16 mg/mm and a rare gas, and in which the discharge tube has a wall load at least equal to 0.8 W/mm , by at least one metal halide with a metal having an ionization potential that is at most 0.87 times as high as the mercury ionization potential being added to the discharge tube in a range of from 2 x 10 to 7 x 10 mu mole/mm .
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公开(公告)号：DE69911678D1
公开(公告)日：2003-11-06
申请号：DE69911678
申请日：1999-03-29
Applicant: USHIO ELECTRIC INC
Inventor： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
Abstract: A high pressure mercury lamp with an extremely high mercury vapor pressure and extremely high wall load in which the arc during operation is advantageously stabilized is achieved in a high pressure mercury lamp having a discharge vessel of fused silica glass which contains a pair of opposed tungsten electrodes, mercury in an amount at least equal to 0.16 mg/mm and a rare gas, and in which the discharge tube has a wall load at least equal to 0.8 W/mm , by at least one metal halide with a metal having an ionization potential that is at most 0.87 times as high as the mercury ionization potential being added to the discharge tube in a range of from 2 x 10 to 7 x 10 mu mole/mm .
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公开(公告)号：DE19747803A1
公开(公告)日：1998-05-07
申请号：DE19747803
申请日：1997-10-29
Applicant: USHIO ELECTRIC INC
Inventor： NARITA MITSUO , SUGITANI AKIHIKO , HORIKAWA YOSHIHIRO , ITO TAKASHI , IGARASHI TATSUSHI
Abstract: A metal halogen lamp has a cathode (11) and anode (12) in the discharge chamber of a quartz glass tube (10), separated by less than 2.9 mm. The tube is filled with mercury and a metallic halide. The ratio of the maximum inner diameter to the extent of the cathode from the wall of the discharge chamber is about 1.9. The discharge chamber is ellipsoidal and the centre of the arc is displaced from the geometric centre of the chamber. The tip of the anode is also displaced from this geometric centre. The rated power of the DC supply for the lamp is between 100 and 400 watts. The lamp is used in liquid crystal projectors.
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公开(公告)号：DE69921222T2
公开(公告)日：2006-03-09
申请号：DE69921222
申请日：1999-03-29
Applicant: USHIO ELECTRIC INC
Inventor： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
Abstract: A high pressure mercury lamp in which formation and spreading of milky opacification in the fused silica glass forming the discharge vessel can be advantageously prevented, and thus a rapid decrease of screen illuminance prevented, when it is used as the light source of a liquid crystal projector and the like by, in a high pressure mercury lamp in which a discharge vessel of fused silica glass contains a pair of opposed tungsten electrodes, mercury in an amount that is at least equal to 0.16 mg/mm , rare gas, and at least one halogen, and in which the wall load is at least equal to 0.8 W/mm , the amount of mercury added being fixed in a range from 2 x 10 to 7 x 10 mmole/mm , and/or the at least one halogen being in the form of a carbonless halogen compound.
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公开(公告)号：DE69921222D1
公开(公告)日：2004-11-25
申请号：DE69921222
申请日：1999-03-29
Applicant: USHIO ELECTRIC INC
Inventor： SUGITANI AKIHIKO , SATO HIROTO , ITO TAKASHI , HORIKAWA YOSHIHIRO
Abstract: A high pressure mercury lamp in which formation and spreading of milky opacification in the fused silica glass forming the discharge vessel can be advantageously prevented, and thus a rapid decrease of screen illuminance prevented, when it is used as the light source of a liquid crystal projector and the like by, in a high pressure mercury lamp in which a discharge vessel of fused silica glass contains a pair of opposed tungsten electrodes, mercury in an amount that is at least equal to 0.16 mg/mm , rare gas, and at least one halogen, and in which the wall load is at least equal to 0.8 W/mm , the amount of mercury added being fixed in a range from 2 x 10 to 7 x 10 mmole/mm , and/or the at least one halogen being in the form of a carbonless halogen compound.
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Patent Agency Ranking
公开(公告)号：DE19747803C2
公开(公告)日：2003-03-06
申请号：DE19747803
申请日：1997-10-29
Applicant: USHIO ELECTRIC INC
Inventor： NARITA MITSUO , SUGITANI AKIHIKO , HORIKAWA YOSHIHIRO , ITO TAKASHI , IGARASHI TATSUSHI
Abstract: A metal halide lamp with a distance of less than 3.0 mm between the electrodes, in which in the hermetically sealed portion no cracks occur, which can be produced without difficulty, and which enables advantageous operation is achieved with a halide lamp in which an arc tube made of quartz glass contains a cathode and an anode spaced from each other at a distance of less than or equal to 2.9 mm together with mercury and metal halides, and which is operated with a nominal wattage range of from 100 to 400 W using direct current, by causing the ratio D/H to be greater than or equal to 1.9 when D is the maximum inside diameter in millimeters in a direction which orthogonally intersects the axial direction of the electrodes in the discharge space and H is the length of the cathode projecting within the discharge space, also in millimeters.
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公开(公告)号：EP2602537A4
公开(公告)日：2014-11-12
申请号：EP11814468
申请日：2011-07-22
Applicant: USHIO ELECTRIC INC
Inventor： KABUKI KIYOYUKI , HORIKAWA YOSHIHIRO , YOSHIDA KAZUHIRO
IPC: F21S2/00 , C09K11/64 , F21S8/12 , G02B5/02 , G02B19/00 , G02B27/10 , G02B27/14 , G03B21/14 , G03B21/20 , H01L33/50
CPC classification number: H01L33/50 , C09K11/646 , G02B5/0236 , G02B5/0278 , G02B5/0294 , G02B19/0014 , G02B19/0047 , G02B27/106 , G02B27/142 , G03B21/204
Abstract: Provided is a light source device for converting excited light into long-wavelength light having a longer wavelength than the excited light to more efficiently emit the light having a desired wavelength. The light source includes: an excited light source emitting excited light; a wavelength conversion member including a light transmission plate and a wavelength conversion layer formed on the light transmission plate and receiving the excited light from the excited light source and emitting long-wavelength light having a longer wavelength than the excited light, the excited light emitted from the excited light source being incident upon one side of the wavelength conversion layer; a light reflection member provided at one side of the wavelength conversion member and including an excited light transmission window transmitting the excited light; and a filter member provided at the other side of the wavelength conversion member and reflecting the excited light and transmitting the long-wavelength light.
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公开(公告)号：JP2000348680A
公开(公告)日：2000-12-15
申请号：JP15805699
申请日：1999-06-04
Applicant: USHIO ELECTRIC INC
Inventor： HORIKAWA YOSHIHIRO , SUGITANI AKIHIKO
Abstract: PROBLEM TO BE SOLVED: To prevent crack of a discharge container by arranging long-sized conductive metal foil in at least one of sealing portions, forming airtight seal portions at two positions mutually separated in the length direction, and forming an airtight space between these two airtight seal portions. SOLUTION: A long-sized conductive metal foil 20A is arranged in a sealing portion 13. One end of the long-sized conductive metal foil 20A is welded and electrically connected to a base end of a tungsten-made electrode bar 16 having a positive electrode 15 at its tip, and the other end is welded and electrically connected to a base end of an external lead bar 21. Shrink seal or pinch seal, for example, forms an inner-side airtight seal portion 13A and an outer-side airtight seal portion 13B, at two positions mutually separated in the length direction of the conductive metal foil 20A, and an airtight space 25 is formed between the airtight seal portions 13A, 13B at the two positions in a state such that the conductive metal foil 20A passes. The airtight space 25 is preferably filled with nitrogen gas as inert gas.
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公开(公告)号：JPH11176378A
公开(公告)日：1999-07-02
申请号：JP34630997
申请日：1997-12-16
Applicant: USHIO ELECTRIC INC
Inventor： HORIKAWA YOSHIHIRO , YAMASHITA TAKASHI , SUGITANI AKIHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a high pressure discharge lamp, capable of restricting shell-shaped cracking at a metal foil sealing portion even when light-on and light-off are repeated. SOLUTION: A lamp 10 has a pair of electrodes 14, 15 arranged in a silica glass luminous tube 12, an electrode rod 18 welded to a metal foil 20 in a metal foil sealing portion 17 and mercury and rare gas filled therein. The filling amount M of mercury, the temperature T of the electrode rod 18 on the metal foil 20 in stable operation, the diameter ϕ of the electrode rod 18 and the thickness (t) of the metal foil sealing portion 17 are satisfied with conditions 1-3, more preferably with conditions 4, 5: the condition 1; 70 (mg/cc) /A)>=0.05 (mm /A) and the condition 5; L×ϕ (mm ) ), where the overlapping length of the electrode rod 18 is L.
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10.发明专利
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.
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