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1. 发明专利

JPH10283993A METAL HALIDE LAMP 失效
公开(公告)号：JPH10283993A
公开(公告)日：1998-10-23
申请号：JP8499197
申请日：1997-04-03
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SEKI SATOYUKI , AKIYOSHI KENJI , YOSHII AKIRA
IPC分类号： H01J61/20 , H01J61/12 , H01J61/82
摘要： PROBLEM TO BE SOLVED: To provide a long-life metal halide lamp such that damage to the lamp does not lead to the front glass of an apparatus. SOLUTION: A metal halide lamp includes a light emitting portion 1 having a pair of electrodes 6, 7 therein and in which mercury, rare gas, metal halides including at least one kind of halide of rare earth metal, and halogen in excess of the stoichiometry of the metal halides are sealed. When the amount of mercury is M (mg/cc), 9.9>=M>=7.7, and the excess halogen is sealed by 25-100 atomic % of the halogen contained in the metal halides, with a tube power of 2000 to 3000 W class at a tube voltage of 200 V class.

2. 发明专利

JPH08329834A HIGH PRESSURE DISCHARGE LAMP 失效
公开(公告)号：JPH08329834A
公开(公告)日：1996-12-13
申请号：JP13133195
申请日：1995-05-30
申请人： MATSUSHITA ELECTRONICS CORP
发明人： WADA MASAHITO , UEMURA TOMONARI , YOSHII AKIRA , AKIYOSHI KENJI
IPC分类号： H01J5/50
摘要： PURPOSE: To provide a high pressure discharge lamp excellent in the heat resistance with which it is possible to make connections of an outer tube, leads, and lamp base without using solders. CONSTITUTION: A lamp base 2 is screwed onto one end of an outer tube 1, and a recess 3 is furnished at one end of the outer tube 1. One of the leads 4a of a light emitting tube led out from the outer tube 1 is led to outside the base 2 from the gap between the end of outer tube 1 and the base 2, for example from the recess 3. The lead 4a is pinched between the end of outer tube 1 and the base 2 by a metal piece 5 having a curving portion 5a and flat portion 5b inserted in the gap between the end of outer tube 1 and the base 2 and is connected to the base 2. The other lead 4b led out from the outer tube 1 is connected by silver braze 6 to the tip of the base 2.

3. 发明专利

JPH04206138A METAL HALIDE LAMP 失效
公开(公告)号：JPH04206138A
公开(公告)日：1992-07-28
申请号：JP33250790
申请日：1990-11-28
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SAITO NAOKI , YOSHII AKIRA , AKIYOSHI KENJI , TOMINAGA JUN , YAMADA HIROSHI
IPC分类号： H01J61/54 , H01J61/35
摘要： PURPOSE:To reduce curving of discharge arc so as to obtain a metal halide lamp with a long service life by arranging four or more even-number conductors at a side of a light emission tube at a substantially equal interval, and applying electric potential to the conductors. CONSTITUTION:A light emission tube 1 is provided with electrodes at its opposed ends and metal halide, mercury and rare gas for start-up are sealed in the tube 1. The tube 1 is built in an outer tube 14 and held at a substantially equal interval of 90 degrees by stem wires 4-7 composed of conductors arranged at a side of the tube 1. One end of each stem wire 4-7 is welded to a valve support plate 8 while the other end is welded to a ring plate 10 fixed to a stem glass 9. The tube 1 is fixed to the stem wires 4, 5 via light emission tube support plates 11, 12. The stem wire 5 is connected to a terminal of a mouthpiece 15 electrically. One end of the tube 1 is connected to the stem wire 5 while the other end is connected to the other terminal of the mouthpiece 15.

4. 发明专利

JPH04145983A ELECTROSTATIC COATING METHOD FOR TUBE BULB 失效
公开(公告)号：JPH04145983A
公开(公告)日：1992-05-19
申请号：JP26913290
申请日：1990-10-05
申请人： MATSUSHITA ELECTRONICS CORP
发明人： AKIYOSHI KENJI , FUJIOKA HIDEYOSHI
IPC分类号： B05B5/12 , B05D1/06 , B05D7/22 , H01K3/00
摘要： PURPOSE:To allow execution in one stage at the time of formation of an electrostatically coated film on an inside surface of a outer tube bulb a conical elastic disk for the coated film into tight contact with the part near the boundary of the neck part of an outer tube bulb and ejecting powder through a holder into the outer tube bulb. CONSTITUTION:The neck part of the outer tube bulb 1 is held in a cylindrical holder 4 respectively provided with the conical elastic disk 2 for the coated film at the top end and a vertical driving type disk 3 on the lower side. Further, the disk 2 is brought into tight contact with the part near the boundary of the neck part of the outer tube bulb 1 and thereafter the powder is ejected through the holder 4 into the outer tube bulb 1 and is electrostatically applied on the inside surface of the outer tube bulb 1. Consequently, the formation of the desired coated film to the outer tube, bulb is executed in one stage. Then, the wasteful use of the powder is obviated and the productivity is improved; in addition, the quality equiv. to the quality of the conventional products is obtd.

5. 发明专利

JPH02256155A METAL HALIDE LAMP 失效
公开(公告)号：JPH02256155A
公开(公告)日：1990-10-16
申请号：JP7888389
申请日：1989-03-29
申请人： MATSUSHITA ELECTRONICS CORP
发明人： AKIYOSHI KENJI
IPC分类号： H01J61/56 , H01J61/54
摘要： PURPOSE:To prevent crack at the sealed portion of a luminous tube due to d.c. voltage element between a main electrode and an auxiliary electrode by having a thermal reaction device arranged between the auxiliary electrode and a resistor so as to be positioned on the upper side of the luminous tube. CONSTITUTION:A luminous tube 1, made of quartz, has a main electrode 2 provided at one end and a main electrode 3 and an auxiliary 4 provided at the outer end. At the time of start, small current occurs between the main electrode 3 and the auxiliary 4 via a thermal reaction device 5 which is arranged at the lower side portion of the luminous tube, a high resistor 9 and a thermal reaction device 6 which is arranged at the upper side portion of the luminous tube, and a glow discharge tube 8 operates so that pulse voltage is applied between the main electrodes 2, 3 to generate main discharge for lighting a lamp. Then, the thermal reaction device 6 which is arranged at the upper side portion of the luminous tube 1 is released at an early time. It is thus possible to prevent crack at the sealed portion of the luminous tube 1 due to d.c. voltage element between the main electrode 3 and the auxiliary electrode 4.

6. 发明专利

JP2000294196A HIGH-PRESSURE DISCHARGE LAMP 失效
公开(公告)号：JP2000294196A
公开(公告)日：2000-10-20
申请号：JP9857499
申请日：1999-04-06
申请人： MATSUSHITA ELECTRONICS CORP
发明人： ENAMI HIROSHI , NOHARA KOJI , YOSHII AKIRA , AKIYOSHI KENJI , YAMAMOTO TAKASHI
IPC分类号： H01J61/073 , H01J61/36
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of a crack in a sealing part during lighting even when an introducing body is large in size and prevent occurrence of color irregularity. SOLUTION: An arc tube 4 has a light emission part 5 and side tube parts 6 formed at both end parts of the arc tube 4. Introducing bodies are sealed at both end parts of the arc tube 4 by a sealing material 14. A fine tube is interlaid between each of the side tube parts 6 and the corresponding introduction body so as to form a gap between the introducing body and itself.

7. 发明专利

JPH02201863A HIGH PRESSURE SODIUM LAMP 失效
公开(公告)号：JPH02201863A
公开(公告)日：1990-08-10
申请号：JP2144089
申请日：1989-01-31
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SAITO NAOKI , TOMINAGA JUN , TSUTSUMI SHINGO , TOMOKIYO KATSUHIKO , AKIYOSHI KENJI
IPC分类号： H01J61/54
摘要： PURPOSE:To achieve a reduced starting voltage and a restarting voltage by sealing a given amount of krypton into a light emitting tube. CONSTITUTION:0.2 to 50 microcuries of krypton 85 per tube volume of 1cm is sealed into a light emitting tube 1 contained within an outer tube 2, together with sodium, buffer metal and rare gas for starting. The radiations emitted from the krypton 85 cause electron excitation, resulting in improved starting and restarting characteristics. Actual measurements indicate that in cold condition, the average starting voltage is 2240V and the average restarting voltage is 3530V. This means that a lamp base 3 can be of ordinary screw-in type, and no special wiring is required for instantaneous reactivation, etc.

8. 发明专利

JP2000340174A METAL HALIDE LAMP 失效
公开(公告)号：JP2000340174A
公开(公告)日：2000-12-08
申请号：JP14991599
申请日：1999-05-28
申请人： MATSUSHITA ELECTRONICS CORP
发明人： NISHIMOTO TATSUO , YOSHII AKIRA , AKIYOSHI KENJI
IPC分类号： H01J61/20
摘要： PROBLEM TO BE SOLVED: To enhance a luminous flux maintenance factor and to suppress a lamp voltage rise to prevent flame failure from being generated. SOLUTION: This metal halide lamp is provided with an arc tube 1 provided with an electrode 1a on both sides thereof. Inside the arc tube, predetermined amounts of a mercury, a gas mixed with a neon and argon, a scandium iodide and a sodium iodide are sealed. Also sealed are 3-5 wt.% of the thorium iodide with respect to the total amount of a metal iodide and a metal to be a metal iodide having free energy higher than that of the sodium iodide and lower than that of the thorium iodide so as to have a molar ratio of 1.4-20 with respect to the thorium iodide.

9. 发明专利

JP2000113859A METAL VAPOR DISCHARGE LAMP 失效
公开(公告)号：JP2000113859A
公开(公告)日：2000-04-21
申请号：JP36921098
申请日：1998-12-25
申请人： MATSUSHITA ELECTRONICS CORP
发明人： NOHARA KOJI , NISHIURA YOSHIHARU , SUGIMOTO KOICHI , KAKISAKA SHUNSUKE , TAKEDA KAZUO , AKIYOSHI KENJI , NAKAYAMA FUMINORI , YAMAMOTO TAKASHI
IPC分类号： H01J61/12 , H01J61/36 , H01J61/88
摘要： PROBLEM TO BE SOLVED: To provide a high-reliability seal section having a stable optical characteristic during its life, improve luminous efficiency and improve a luminous flux build-up characteristic in the initial stage of lighting. SOLUTION: This metal vapor discharge lamp is provided with an arc tube 1 made of a translucent ceramic, an outer tube 2 surrounding the arc tube 1, and metal wires 3a, 3b fixing the arc tube 1 in the outer tube 2. Nitrogen with the prescribed pressure is sealed in the outer tube 2. The arc tube 1 is provided with a main tube section 5 and fine tube sections 6 provided at both ends of the main tube section 5. A conductive cermet 7 is inserted into each fine tube section 6, and the fine tube section 6 is sealed by glass frit 8. The frit 8 is poured into the gap between the inner face of the fine tube section 6 and the outer face of the conductive cermet 7 until the distance L between the discharge space side end face of the frit 8 and a discharge space end face becomes 7 mm. The temperature on the discharge space side end face of the frit 8 is 800 deg.C at maximum.

10. 发明专利

JPH06260138A METAL HALIDE LAMP 失效
公开(公告)号：JPH06260138A
公开(公告)日：1994-09-16
申请号：JP4238493
申请日：1993-03-03
申请人： MATSUSHITA ELECTRONICS CORP
发明人： UEMURA TOMONARI , SEKI SATOYUKI , YOSHII AKIRA , GION HIROSHI , AKIYOSHI KENJI
IPC分类号： H01J61/20
摘要： PURPOSE:To provide a high-wattage metal halide lamp over 1000W which excels in the color rendering property and which has a long lifetime. CONSTITUTION:A metal halide lamp has a light emitting tube 1 which is equipped with electrodes 2a, 2b at the ends and in which, besides mercury and rare gas, hybrid halides are encapsulated including at least one of the halides of thallium and cesium and halides of holmium, thulium, and dysprosium. The rated power of the lamp is over 1000W. The total encapsulated amount of the hybrid halides is selected to the range 0.1-0.5mg per cm capacity of the tube.

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