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1. 发明专利

JPH09115486A HIGH PRESSURE DISCHARGE LAMP 失效
公开(公告)号：JPH09115486A
公开(公告)日：1997-05-02
申请号：JP27253895
申请日：1995-10-20
申请人： MATSUSHITA ELECTRONICS CORP
发明人： WADA MASAHITO , TAKUBO AKIO , YOSHII AKIRA
IPC分类号： H01J61/54 , H01J61/34 , H01J61/56
摘要： PROBLEM TO BE SOLVED: To permanently disable operation of a starter and prevent occurrence of pulse voltage when a luminous tube disables to start by connecting a series circuit which consists of a specific starter, a thermally reacting switch and a temperature switch element in parallel to the luminous tube. SOLUTION: A luminous tube 1 which has a pair of electrodes at both ends and luminous material filled inside and a starter 2 to apply pulse voltage between both electrodes for the luminous tube 1 are installed in an outer tube 6. A series circuit which has a thermally reacting switch 3 and a temperature fuse element 4 is connected in parallel to the luminous tube 1. The starter 2 is formed with the series circuit which consists of a glow starter 2a and a heating resistor 2b.

2. 发明专利

JPH08236076A REFLECTION TYPE DISCHARGE LAMP 失效
公开(公告)号：JPH08236076A
公开(公告)日：1996-09-13
申请号：JP4084695
申请日：1995-02-28
申请人： MATSUSHITA ELECTRONICS CORP
发明人： TAKUBO AKIO , WADA MASAHITO , YOSHII AKIRA , GION HIROSHI
IPC分类号： H01J61/12 , H01J61/34 , H01J61/88
摘要： PURPOSE: To provide a reflection type discharge lamp which can prevent leakage of a light emitting tube and has a stable lamp characteristic. CONSTITUTION: Electric conductors 5a and 5b having electrodes 6a and 6b are sealed in both end parts of a light emitting tube 4 composed of alumina ceramics. Sodium, mercury and noble gas are sealed in the light emitting tube 4. The light emitting tube 4 is airtightly sealed in a glass tube 7. The inside of the glass tube 7 is heated and exhausted at high temperature, and is maintained in high vacuum. The electrodes 6a and 6b are respectively connected to metallic foil 8a and 8b arranged in both end parts of the glass tube 7, and these metallic foil 8a and 8b are respectively connected to end parts of subsidiary wires 9a and 9b connected to a base 10 of a reflection type bulb 1. The reflection type bulb 1 has a reflecting mirror surface 2 on which an evaporation film 3 such as aluminium is formed. After the inside of the reflection type bulb 1 is exhausted in vacuum, nitrogen is sealed.

3. 发明专利

JPH0845471A METAL HALIDE LAMP 失效
公开(公告)号：JPH0845471A
公开(公告)日：1996-02-16
申请号：JP17776694
申请日：1994-07-29
申请人： MATSUSHITA ELECTRONICS CORP
发明人： UEMURA TOMONARI , SEKI SATOYUKI , YOSHII AKIRA
IPC分类号： H01J61/073
摘要： PURPOSE:To prevent the generation of arc spot at indefinite points of an electrode. CONSTITUTION:A coil 13 which is wound around a tip part of an electrode rod 12 projecting from a tube wall of a light emitting tube to the tube inside is composed of a high-melting-point metal wire whose winding start (c) and winding end (d) are laid on the base end side of the electrode rod 12. The coil 13 consists of a lower side coil part A which is formed by winding up into even-number layers with the tip side of the electrode rod 12 set as a turn point (a) and an upper side coil part B which is formed by winding up into even- number layers on the lower side coil part A with the tip side of the electrode rod 12 set as the turn point (b). The turn point (a) of the lower side coil part A is positioned apart from the tip of the electrode rod 12, at least, by length equivalent to the diameter of the electrode rod 12 and the turning point (b) of the upper side coil part B is positioned toward the base side from the turning point (a) of the lower side coil part A.

4. 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.

5. 发明专利

JPH10125286A METAL HALIDE LAMP 失效
公开(公告)号：JPH10125286A
公开(公告)日：1998-05-15
申请号：JP27636896
申请日：1996-10-18
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SEKI SATOYUKI , AKIYOSHI KENJI , YOSHII AKIRA
IPC分类号： H01J61/50 , H01J61/36
摘要： PROBLEM TO BE SOLVED: To prevent the scattering of an arc tube material due to the breakage of an arc tube by applying a metal having oxidation resistance but no corrosion resistance to halogen element on the surfaces of conductive foils buried in seal sections. SOLUTION: The end sections of electrode rods 2a, 2b and molybdenum foils 4a, 4b and end sections of external lead rods 5a, 5b are buried in seal sections 3a, 3b respectively, and they are provided on both sides of a luminescence section 1 via the pinch seal system. Coating sections 7a, 7b coated with a metal having oxidation resistance and no corrosion resistance to halogen except for a portion on the luminescence section 1 side are provided on the surfaces of the molybdenum foils 4a, 4b respectively. One-end sections of the external lead rods 5a, 5b are connected to the surfaces of the coating sections 7a, 7b on the opposite side to the luminescence section 1.

6. 发明专利

JPH10125285A METAL HALIDE LAMP 失效
公开(公告)号：JPH10125285A
公开(公告)日：1998-05-15
申请号：JP27636596
申请日：1996-10-18
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SEKI SATOYUKI , YOSHII AKIRA
IPC分类号： H01J61/50 , H01J61/36
摘要： PROBLEM TO BE SOLVED: To discharge a sealing metal in a luminescence section before an arc tube is broken and prevent the scattering of an arc tube material by providing leak sections in seal sections near the corner on the luminescence section side of conductive foils. SOLUTION: The arc tube 10 is provided with thin plate-like molybdenum foils 4a, 4b electrically connected to a pair of electrode rods 2a, 2b respectively and external lead rods 5a, 5b electrically connected to the molybdenum foils 4a, 4b respectively. Hole sections 7a, 7a' serving as a leak section for leaking a material sealed in a luminescence section 1 are provided at a seal section 3a near the corner on the luminescence section 1 side of the molybdenum foil 4a. Hole sections 7b, 7b' are likewise provided at a seal section 3b near the corner on the luminescence section 1 side of the molybdenum foil 4b.

7. 发明专利

JPH1092385A BULB 失效
公开(公告)号：JPH1092385A
公开(公告)日：1998-04-10
申请号：JP24198696
申请日：1996-09-12
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SEKI SATOYUKI , MAEDA KAZUO , SUGIMOTO HIROSHI , YOSHII AKIRA
IPC分类号： H01J61/52 , H01J61/35 , H01J61/36 , H01K1/32 , H01K1/38 , H01K1/40 , H01K1/58
摘要： PROBLEM TO BE SOLVED: To maintain a temperature at an end of a conductive foil to a specified value or less and provide superior service life characteristics by forming a film with its thermal conductivity and high radiation rate at a sealing part. SOLUTION: When thermal conductivity is (a) (cal/cm sec deg.C), and a radiation rate is (b) on surfaces of sealing parts 2 and 3 in which a molybdenum foils (conductive foils) 4 and 5 are embedded, aluminum nitrate films 15 and 16 composed of a material that meets a condition of a b>0.1 (cal/cm sec deg.C) are formed. In this case, higher thermal conductivity of a film material absorbs heats of sealing parts 2 and 3 a higher radiation rate of the film material discharge the absorbed heats to the outside; therefore, a temperature at an end on a side further than the bulb center of the sealing parts 2 and 3 of the foils 4 and 5 being lit is lowered. By forming the films 15 and 16 with their thermal conductivity and radiation rate at the sealing parts 2 and 3, the end part temperature of the sealing parts while a lamp is lit is maintained to 350 deg.C or less despise the sealing parts 2 and 3 easily manufactured, and inexpensive, superior service life characteristics are provided.

8. 发明专利

JPH1074489A METAL HALIDE LAMP 失效
公开(公告)号：JPH1074489A
公开(公告)日：1998-03-17
申请号：JP23052296
申请日：1996-08-30
申请人： MATSUSHITA ELECTRONICS CORP
发明人： SEKI SATOYUKI , YOSHII AKIRA
IPC分类号： H01J61/88 , H01J61/36 , H01J61/82
摘要： PROBLEM TO BE SOLVED: To keep the end part of a seal part at a fixed temperature or lower, reduce the manufacturing cost and improve the life characteristic by setting the distance between both end parts of a pair of seal parts and the distance between a pair of equipment socket installing parts to have a prescribed relation. SOLUTION: Seal parts 2, 3 are formed in pinch seal style on both sides of a light emitting tube 1 having a metal vapor and a halide sealed in the inner part and a pair of electrodes 6, 7 arranged therein. One-side ends of molybdenum foils 4, 5 buried therein as conductors are connected to the electrodes 6, 7. The delivered end parts on the other side exposed to the air are connected to connecting terminals 13, 14 through external lead bars 8, 9 buried in the ceramic bases 11, 12 of connecting installing parts having equipment socket installing parts 11a, 12a. The relation between the distance (a)mm between delivered end parts on both sides of the seal parts 2, 3 and the distance (b)mm between the socket installing parts 11a, 12a is set to 0

9. 发明专利

JPH09115485A HIGH PRESSURE DISCHARGE LAMP 失效
公开(公告)号：JPH09115485A
公开(公告)日：1997-05-02
申请号：JP27253795
申请日：1995-10-20
申请人： MATSUSHITA ELECTRONICS CORP
发明人： WADA MASAHITO , TAKUBO AKIO , YOSHII AKIRA
IPC分类号： H01J61/54 , H01J61/34 , H01J61/56
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of pulse voltage when a luminous tube disables to start by connecting a series circuit which consists of a specific starter, a thermally reacting switch and a temperature fuse in parallel to the luminous tube and connecting a discharge gap in parallel to a glow starter for the starter. SOLUTION: A luminous tube which has a pair of electrodes at both ends and luminous material filled inside and a starter 2 to apply pulse voltage between both electrodes for the luminous tube 1 are installed in an outer tube 6 which is evacuated inside. The starter 2 is formed with a series circuit which consists of a glow starter 2a and a heating resistor 2b. The series circuit which has the starter, a thermally reacting switch 3 and a temperature fuse 4 is connected in parallel to the luminous tube 1 and the glow starter 2a is connected in parallel to a discharge gap 5.

10. 发明专利

JPH0963541A HIGH PRESSURE DISCHARGE LAMP 失效
公开(公告)号：JPH0963541A
公开(公告)日：1997-03-07
申请号：JP21174095
申请日：1995-08-21
申请人： MATSUSHITA ELECTRONICS CORP
发明人： TAKUBO AKIO , WADA MASAHITO , YOSHII AKIRA , GION HIROSHI
IPC分类号： H01J61/54 , H01J61/56
摘要： PROBLEM TO BE SOLVED: To stop generation of pulse voltages when a high pressure discharge lamp cannot be started to operate by some reasons. SOLUTION: A starting unit 2, constructed of a series circuit of a glow starter 7, a resistance heating element 8, and a normally open heat-reacting switch 3, is connected in parallel with an emission tube 1, is enclosed inside an outer tube 4 and, when the emission tube 1 does not operate, causes the bulb of the glow starter 7 to leak by means of the heat of the resistance heating element 8 to release internal sealed-in gas. After the glow starter 7 has been destroyed, a discharge does not occur at the glow starter 7 even at the re-application of a voltage to the starter unit 2, nor do pulse voltages emerge.

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