WO2012035846A1 - 電極マウント及びそれを用いた高圧放電ランプ並びにその製造方法 - Google Patents
電極マウント及びそれを用いた高圧放電ランプ並びにその製造方法 Download PDFInfo
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- WO2012035846A1 WO2012035846A1 PCT/JP2011/064770 JP2011064770W WO2012035846A1 WO 2012035846 A1 WO2012035846 A1 WO 2012035846A1 JP 2011064770 W JP2011064770 W JP 2011064770W WO 2012035846 A1 WO2012035846 A1 WO 2012035846A1
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- electrode
- electrode shaft
- shaft portion
- mount
- pressure discharge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/28—Manufacture of leading-in conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
- H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
- H01J61/368—Pinched seals or analogous seals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
- H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
Definitions
- the present invention generally relates to an electrode mount, a high-pressure discharge lamp using the same, and a method of manufacturing the same, and more specifically, an electrode mount that prevents bending of an electrode shaft portion embedded in a sealing portion and a high-pressure using the same. It relates to a discharge lamp.
- FIG. 7 shows a general high-pressure discharge lamp 11 (for example, an ultra-high pressure mercury lamp) used for a projector light source or the like.
- the high-pressure discharge lamp 11 includes the arc tube 2 and a pair of electrode mounts included therein.
- the arc tube 2 includes a discharge space 3 and a pair of sealing portions 4 sandwiching the discharge space 3, and each electrode mount includes an electrode 5, a metal foil 6 and a lead wire 7 welded to each other.
- the tip side of the electrode 5 is exposed to the discharge space 3 of the arc tube 2, and a part of the electrode shaft part 5 a on the base side of the electrode 5, a part of the metal foil 6 and the lead wire 7 are embedded in the sealing part 4.
- the discharge space 3 is filled with 0.15 mg / mm 3 or more of mercury, rare gas, and halogen gas, and the mercury vapor pressure during lighting becomes 150 atmospheres or more.
- the high-pressure discharge lamp (hereinafter referred to as “lamp”) is repeatedly turned on and off, but the difference in thermal expansion coefficient between the electrode shaft portion (tungsten) and the sealing portion (quartz glass) during lighting and extinguishing. Due to this, there has been a problem that the electrode shaft portion is bent.
- the mechanism of the bending of the electrode shaft is as follows. First, during lighting, the electrode shaft portion expands in the radial direction and expands toward the discharge space, whereas the thermal expansion coefficient of quartz glass in the sealing portion is much smaller than that of the electrode shaft portion. Compared to almost no expansion. With the quartz glass of the sealing portion maintained in its shape, the electrode shaft portion expands, so that the electrode shaft portion closely adheres to a part of the sealing portion.
- the closely contacted portion of the electrode shaft portion maintains the state, and the other portions are separated (a gap is formed). That is, the electrode shaft portion is bent as a result of the shrinkage of the closely contacting portion of the electrode shaft portion being restricted while the shrinkage of the gap portion is not restricted. This bending of the electrode shaft causes problems such as a shift of the optical axis and a decrease in illuminance.
- Patent Document 1 In order to solve the above-described problem of bending of the electrode shaft portion, in Patent Document 1, a taper portion that narrows from the root to the tip is provided in the electrode shaft portion, and the contraction of the electrode shaft portion is not easily restricted by the sealing portion quartz glass. It is configured.
- the inner surface of a sealing part (quartz glass) and the outer surface of an electrode shaft part make the contact part small, and mutually support, and expansion and contraction of an electrode shaft part are sealing parts (quartz). Glass) so that it is not obstructed by the inner surface.
- the inner surface structure of the sealing portion (quartz glass) is configured such that the cross section thereof becomes a triangle or the like or has a convex portion, thereby reducing the contact portion with the electrode shaft portion. ing.
- Patent Document 1 the configuration of the electrode shaft portion becomes complicated, resulting in a significant increase in processing cost in electrode production. Moreover, the device which ensures the intensity
- the processing of the sealing portion becomes complicated, resulting in a significant increase in processing cost in arc tube production.
- the sealing part needs to take into account the problem of cracks due to thermal stress, and the structure in which the stress of the quartz glass itself or the stress from the electrode shaft part is uniformly distributed in the radial direction. Therefore, it is desirable that the sealing section has a circular cross section.
- an object of the present invention is to provide an electrode mount that prevents bending of an electrode shaft portion by a method that minimizes an increase in production cost in an electrode for a high-pressure discharge lamp. Furthermore, it aims at finding out a useful structure also in the structure which can input the big current in a high watt lamp.
- the first aspect of the present invention is a method for manufacturing an electrode mount for a high-pressure discharge lamp.
- the manufacturing method includes a step of heat-treating an electrode mount made of an electrode and a metal foil that are welded to each other, and an oxidation step of forming an oxidized portion that generates an oxide by laser irradiation on the surface of the electrode shaft portion.
- the laser irradiation position is determined so that all or part of the oxidation portion is included in the sealing portion.
- the second aspect of the present invention is a method for manufacturing a high-pressure discharge lamp.
- the manufacturing method includes a step of heat-treating an electrode mount in which electrodes and lead wires are welded to both ends of a metal foil, a step of forming an oxidized portion that generates an oxide by laser irradiation on the surface of the electrode shaft portion, and an electrode mount. Is embedded in the arc tube of the high-pressure discharge lamp to form a sealing portion. The laser irradiation position is determined so that all or part of the oxidized portion is included in the sealing portion.
- the third aspect of the present invention is an electrode mount for a high-pressure discharge lamp.
- the electrode mount includes a metal foil and an electrode welded to one end of the metal foil.
- An oxidation part that generates oxide by laser irradiation is formed on the surface of the electrode shaft part, and when the electrode mount is embedded in the sealing part of the high-pressure discharge lamp, all or part of the oxidation part is included in the sealing part. Thus, an oxidation part is formed.
- a high-pressure discharge lamp comprising the electrode mount on the third side further provided with a lead wire connected to the other end of the metal foil, and an arc tube including the electrode mount in the sealing portion. is there.
- the oxidation step determines the intensity of the laser so that the laser is irradiated on one side of the electrode shaft portion to form an oxidation portion around the entire surface of the electrode shaft portion.
- the oxidation portion is formed so as to cover at least 30% of the discharge space side of (1) the buried portion of the electrode shaft portion, or (2) the buried electrode shaft portion. It is formed so as to cover at least 65% of the portion.
- FIG. 1 shows a high-pressure discharge lamp 1 including the electrode mount of the present invention.
- the high-pressure discharge lamp 1 includes an arc tube 2 and a pair of electrode mounts 8 (see FIG. 3A).
- the arc tube 2 includes a discharge space 3 and a pair of sealing portions 4 sandwiching the discharge space 3, and the electrode mounts 8 are welded to each other.
- the electrode 5, the metal foil 6, and the lead wire 7 are formed.
- the discharge side of the electrode 5 is exposed to the discharge space 3, and a part of the electrode shaft part 5 a, a part of the metal foil 6 and the lead wire 7 are embedded in the sealing part 4.
- an oxidized portion 5b (hereinafter referred to as “oxidized portion 5b”) in which an oxide is generated is formed in a portion where the electrode shaft portion 5a is buried.
- the discharge space 3 is filled with 0.15 mg / mm 3 or more of mercury, rare gas, and halogen gas, and the mercury vapor pressure during lighting becomes 150 atmospheres or more.
- the effect of forming the oxidized portion 5b in the buried portion of the electrode shaft portion 5a is as follows. Since the electrode shaft portion 5a is made of tungsten, the oxidized portion 5b is tungsten oxide. Tungsten has low adhesion to tungsten oxide, while quartz glass has reducibility, and thus has high adhesion to tungsten oxide. Therefore, even when a part of the oxidized portion 5b of the electrode shaft portion 5a is in close contact with the quartz glass of the sealing portion 4 when the lamp is turned off, that is, during cooling, the electrode shaft portion 5a is difficult to adhere to the oxidized portion 5b. The partial contraction between the oxidized portion 5b and the sealing portion 4 does not inhibit the contraction of the electrode shaft portion 5a.
- the electrode shaft portion 5a is subjected to a uniform mode (substantially uniform stress in the radial direction and the axial direction) when the lamp is turned on. State), and when the lamp is extinguished, it can contract in a uniform manner and return to its original position.
- the oxidation part 5b functions as a buffer material.
- the oxidation part 5b is desirably formed over the entire surface of the electrode shaft part 5a in order to obtain a uniform aspect in the radial direction and the axial direction as described above, the function as the buffer material described above As long as this is satisfied, the effects of the present invention can be enjoyed even if the oxidized portion 5b does not necessarily exist over the entire circumference.
- FIG. 2 shows a flowchart of the electrode mount and lamp manufacturing method of the present invention.
- step S10 as shown in FIG. 3A, the electrode 5 is welded to one end of the metal foil 6, and the lead wire 7 is welded to the other end to constitute the electrode mount 8. Resistance welding can be used for welding. In addition, you may weld the lead wire 7 to the metal foil 6 after process S12 or S14 mentioned later.
- step S12 the electrode mount 8 obtained in step S10 is heat-treated.
- the heat treatment is performed by exposing the electrode mount 8 to a hydrogen atmosphere at 900 to 1000 ° C. for 10 minutes. Thereby, impurities on the electrode mount are removed.
- an oxidized portion 5b is formed on a predetermined portion of the surface of the electrode shaft portion 5a.
- the position of the oxidized portion 5b is determined so that all or part (most) of the oxidized portion 5b is included in the sealing portion 4 when the electrode mount 8 is embedded in the sealing portion 4 in step S20 described later. Is done. That is, the oxidized portion 5 b may be completely embedded in the sealing portion 4 or may be slightly exposed in the discharge space 3. Actually, it is desirable to provide the oxidized portion 5b so that the oxidized portion 5b is somewhat exposed to the discharge space 3 in consideration of manufacturing variations. Thereby, the electrode mount 8 of the present invention is completed.
- the oxidation step of step S14 is performed by irradiating the surface of the electrode shaft portion 5a with a laser.
- a laser Specifically, SU-LASER MAX-150P (main body), MODEL FOL-30-THM II-F / 100-WD100, emission diameter ⁇ 0.8 mm (exit unit) is used as a laser irradiation device. be able to. Then, the distance from the emitting unit to the electrode shaft portion 5a is set to 90 mm, the laser is irradiated on one side of the electrode shaft portion 5a, and the emission intensity of the laser is determined and set so as to form an oxidized portion on the entire surface. That's fine. As described above, when the oxidation portion is provided on the entire surface, there is no need to rotate the electrode shaft portion 5a or the laser irradiation device with respect to the electrode shaft, so that the oxidation step can be easily performed.
- step S20 as shown in FIG. 3C, the electrode mount 8 is embedded in the arc tube 2, and the sealing portion 4 is formed. As described above, in this step, all or a part (most part) of the oxidized portion 5 b of the electrode shaft portion 5 a is embedded in the sealing portion 4, and mercury and an enclosed gas are enclosed in the discharge space 3. Thereby, the high-pressure discharge lamp of the present invention is completed.
- the specifications of the lamp used in Experiment 1 will be described.
- the arc tube 2 is made of high-purity quartz glass, and the internal capacity of the discharge space 3 is 0.086 cc.
- the discharge space 3 is filled with about 280 mg / cc of mercury, 20 kPa of rare gas (for example, argon), and halogen gas.
- the input lamp power is 230W.
- the electrode shaft portion 5a is made of tungsten and has a shaft portion diameter of 0.45 mm. A coil is wound around the tip end and melted.
- the buried portion L of the electrode shaft portion 5a is about 2.1 mm, and the oxidized portion 5b is provided with a length of about 1 mm from the end portion on the metal foil 6 side in the electrode tip direction.
- the oxidation part 5b was provided only on one electrode shaft part.
- a first oxidized portion having a width of 1 mm is formed in the electrode shaft portion 5a with a distance of 0.5 mm from the end portion on the metal foil 6 side in the electrode tip direction.
- a second oxidized portion having a width of 1 mm is formed at a position substantially connected to the first oxidized portion. Therefore, the buried portion on the discharge space side from the second oxidation portion is left by 0.4 mm.
- said substantially connected position means that the 1st oxidation part and the 2nd oxidation part are substantially continuous as a result of performing laser irradiation with respect to two places.
- the position of the oxidized portion 5b is on the discharge space side where the temperature is higher in the buried portion. This is because the stress acting on each other due to the difference between the expansion coefficient of quartz glass of the sealing part 4 and the thermal expansion coefficient of the electrode shaft part 5a is larger on the discharge side where the temperature is higher than that on the metal foil side. This is because it is effective to take measures against bending. Naturally, it is difficult to obtain the effects of the present invention unless the oxidation portion 5b is provided in a predetermined range or more.
- Experiment 3 was performed to confirm a suitable position and range of the oxidized portion.
- the specification of the lamp used in Experiment 3 will be described with reference to FIG. Only the position of the oxidation part 5b is different from the lamp used in Experiment 2.
- the positions A, B, and C each having a width of 1 mm are defined from the metal foil side end of the electrode shaft portion 5a toward the discharge space, and the oxidized portion is provided at any one or two positions.
- the electrode shaft portion was not bent in the lamp in which only the position C, the positions A and C, and the positions B and C were provided with the oxidation portion.
- failure due to causes other than the bending of the electrode shaft portion occurred, and the presence or absence of bending was not confirmed, but the conditions regarding the position and range of the oxidation portion are similar to the lamp used in Experiment 2. It can be estimated that no bending occurs.
- the oxidation portion is (1) at least about 30% ( ⁇ 0.9 / 2.9) on the discharge space side of the buried portion of the electrode shaft portion. Or (2) covering at least about 65% ( ⁇ (0.9 + 1.0) /2.9) of the embedded portion of the electrode shaft portion in a high watt lamp It was also confirmed that the bending of the electrode shaft portion can be prevented.
- the ultra high pressure mercury lamp has been described as an example, but the present invention can also be applied to a general high pressure discharge lamp.
- the oxidized portion is formed on both of the pair of electrode shaft portions, but only one of them may be used.
- the electrode mount on the high temperature side where the bending of the electrode shaft portion is more likely to occur for example, the electrode mount placed on the reflector neck when the lamp is attached to the reflector, or the lamp has not only the reflector but also a secondary mirror.
- the oxidation portion When attached, the oxidation portion may be formed only on the electrode mount disposed on the secondary mirror side. Of course, in this case, it is necessary to be able to identify which side of the electrode mount the oxidized portion is formed in the completed lamp. (3) In this embodiment, the position and width of the oxidized portion in the electrode axis direction are constant. For example, the oxidized portion is formed in a spiral shape with respect to the electrode shaft portion or formed in a dot shape. Such forms may be included in the scope of the present invention. However, in this case, it is necessary to rotate the electrode shaft portion or the laser irradiation device with respect to the electrode shaft.
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Abstract
Description
また、上記第1から第4の側面において、好ましくは、酸化部が(1)電極軸部の埋設部の少なくとも放電空間側30%を覆うように形成され、又は(2)電極軸部の埋設部のうちの少なくとも65%を覆うように形成される。
工程S10において、図3Aに示すように、金属箔6の一端に電極5を溶接し、他端にリード線7を溶接して電極マウント8を構成する。溶接には抵抗加熱溶接を用いることができる。なお、リード線7は後述する工程S12又はS14の後で金属箔6に溶接してもよい。
<実験1>
実験1で使用したランプの仕様を説明する。発光管2は高純度の石英ガラスからなり、放電空間3の内部容量は0.086ccである。放電空間3には約280mg/ccの水銀、20kPaの希ガス(例えば、アルゴン)、及びハロゲンガスが封入されている。投入ランプ電力は230Wである。電極軸部5aはタングステンからなり、軸部径は0.45mmであり、先端側にコイルが巻回されてそれが溶融処理されている。電極軸部5aの埋設部Lは約2.1mmであり、酸化部5bは金属箔6側端部から電極先端方向に約1mmの長さで設けられている。なお、本実験では、一方の電極軸部のみに酸化部5bを設けた。
本実験では、投入ランプ電力が420Wのランプを用いて試験を行なった。これは電極軸部にとっては実験1(230W)よりも厳しい試験条件となる。ランプの各部寸法は実験1で用いたランプとは異なり、特に、軸部径は0.53mm、L=2.9(mm)である。
次に、酸化部5bの好適な位置及び範囲を確認した。ランプ電力が230W程度であれば問題とはならないが、ランプ電力が420W程度となると電極の熱容量の増加、電流値の増大に対し、特に電極軸部の径を太くする必要があり、そのため、電極軸部の膨張収縮がさらに大きくなるため、酸化部5bをより好適な位置又は範囲に特定する必要がある。
次に、電極軸部の酸化部がランプ寿命に影響がないことを確認すべく、従来ランプと本発明のランプのライフテストを行なった。
本実験では、実験1と同様のランプ(230W)及び実験2におけるCの箇所のみに酸化部を形成したランプ(420W)を用いて、3時間30分ON-30分OFFの点滅試験を行なった。本実験の結果を図6A及び6Bに示す。同図に示すように、2000時間経過後において、照度及びランプ電圧について本発明のランプは従来ランプと同等又は良好な寿命特性を持つことが分かる。これにより、本発明における酸化部がランプ寿命に影響を与えないことが確認された。
(1)本実施例においては超高圧水銀ランプを例として説明したが、本発明は一般的な高圧放電ランプにも適用できる。
(2)本実施例(実験1を除く)においては、酸化部を一対の電極軸部の両方に形成したが、片方のみとしてもよい。例えば、より電極軸部曲がりが発生し易い高温側の電極マウント(例えば、ランプを反射鏡に取り付けた場合に反射鏡ネック側に配置される電極マウント、又はランプに反射鏡だけでなく副鏡が取り付けられる場合に副鏡側に配置される電極マウント)のみに酸化部を形成してもよい。もちろんこの場合は、完成したランプにおいてどちら側の電極マウントに酸化部が形成されたかを識別できるようにしておく必要がある。
(3)本実施例では、酸化部の電極軸方向の位置及びその幅が一定のものを示したが、例えば、酸化部を電極軸部に対して螺旋状に形成したり、ドット状に形成したりしてもよく、そのような形態のものも本発明の範囲に含まれる。但し、この場合は、電極軸部又はレーザ照射装置を電極軸に対して回転させる必要がある。
2.発光管
3.放電空間
4.封止部
5.電極
5a.電極軸部
5b.酸化部
6.金属箔
7.リード線
8.電極マウント
L.埋設部
Claims (9)
- 高圧放電ランプ用の電極マウントの製造方法であって、
相互に溶接された電極及び金属箔からなる電極マウントを加熱処理する工程、及び
前記電極の電極軸部の表面にレーザ照射により酸化物を生成した酸化部を形成する酸化工程
を備え、前記電極マウントが前記高圧放電ランプの封止部に埋設されるときに前記酸化部の全部又は一部が前記封止部に含まれるようにレーザ照射位置が決定される、製造方法。 - 請求項1の製造方法において、前記酸化部が(1)前記電極軸部の埋設部の少なくとも放電空間側30%を覆うように形成され、又は(2)前記電極軸部の埋設部のうちの少なくとも65%を覆うように形成される、製造方法。
- 請求項1の製造方法において、前記酸化工程が、レーザを前記電極軸部の片側に照射して該電極軸部の表面全周に前記酸化部を形成するように該レーザの強度を決定することを含む製造方法。
- 高圧放電ランプの製造方法であって、
金属箔の両端に電極及びリード線が溶接された電極マウントを加熱処理する工程、
前記電極の電極軸部の表面にレーザ照射により酸化物を生成した酸化部を形成する工程、及び
前記電極マウントを前記高圧放電ランプの発光管に埋設し、封止部を形成する工程
を備え、前記酸化部の全部又は一部が前記封止部に含まれるようにレーザ照射位置が決定される、製造方法。 - 請求項4の製造方法において、前記酸化部が(1)前記電極軸部の埋設部の少なくとも放電空間側30%を覆うように形成され、又は(2)前記電極軸部の埋設部のうちの少なくとも65%を覆うように形成される、製造方法。
- 請求項4の製造方法において、前記酸化工程が、レーザを前記電極軸部の片側に照射して該電極軸部の表面全周に前記酸化部を形成するように該レーザの強度を決定することを含む製造方法。
- 高圧放電ランプ用の電極マウントであって、
金属箔及び該金属箔の一端に溶接された電極を備え、
前記電極の電極軸部の表面にレーザ照射による酸化物を生成した酸化部が形成され、前記電極マウントが前記高圧放電ランプの封止部に埋設されるときに該酸化部の全部又は一部が該封止部に含まれるように該酸化部が形成された電極マウント。 - 請求項7の電極マウントにおいて、前記酸化部が(1)前記電極軸部の埋設部の少なくとも放電側30%を覆うように形成され、又は(2)前記電極軸部の埋設部のうちの少なくとも65%を覆うように形成された電極マウント。
- 前記金属箔の他端に接続されたリード線をさらに備えた請求項7の電極マウント、及び前記封止部に該電極マウントを含む発光管からなる高圧放電ランプ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011800040677A CN102576636A (zh) | 2010-09-14 | 2011-06-28 | 电极座以及采用该电极座的高压放电灯及其制造方法 |
EP11824309.6A EP2509093A4 (en) | 2010-09-14 | 2011-06-28 | ELECTRODE SUPPORT, HIGH PRESSURE DISCHARGE LAMP, AND METHOD FOR PRODUCING THE ELECTRODE SUPPORT AND THE HIGH PRESSURE DISCHARGE LAMP |
CA2772118A CA2772118A1 (en) | 2010-09-14 | 2011-06-28 | Electrode mount, high pressure discharge lamp using the same, and manufacturing methods of electrode mount and high pressure discharge lamp |
US13/395,733 US8795019B2 (en) | 2010-09-14 | 2011-06-28 | Electrode mount, high pressure discharge lamp using the same, and manufacturing methods of electrode mount and high pressure discharge lamp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2010205008A JP4853843B1 (ja) | 2010-09-14 | 2010-09-14 | 電極マウント及びそれを用いた高圧放電ランプ並びにその製造方法 |
JP2010-205008 | 2010-09-14 |
Publications (1)
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WO2012035846A1 true WO2012035846A1 (ja) | 2012-03-22 |
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Family Applications (1)
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PCT/JP2011/064770 WO2012035846A1 (ja) | 2010-09-14 | 2011-06-28 | 電極マウント及びそれを用いた高圧放電ランプ並びにその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8795019B2 (ja) |
EP (1) | EP2509093A4 (ja) |
JP (1) | JP4853843B1 (ja) |
CN (1) | CN102576636A (ja) |
CA (1) | CA2772118A1 (ja) |
WO (1) | WO2012035846A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013084494A (ja) * | 2011-10-12 | 2013-05-09 | Iwasaki Electric Co Ltd | 電極マウント、それを用いた高圧放電ランプ、及びそれらの製造方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013197405A (ja) | 2012-03-21 | 2013-09-30 | Hitachi Automotive Systems Ltd | 電子制御装置 |
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JP2001023571A (ja) * | 1999-07-02 | 2001-01-26 | Phoenix Denki Kk | ランプ用マウントとランプの封止部構造及び封止方法 |
JP2009099338A (ja) * | 2007-10-16 | 2009-05-07 | Ushio Inc | 超高圧放電ランプ |
JP2009146590A (ja) * | 2007-12-11 | 2009-07-02 | Ushio Inc | 放電ランプ |
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DE69822058D1 (de) * | 1997-09-19 | 2004-04-08 | Matsushita Electric Ind Co Ltd | Hochdruckentladungslampe und Verfahren zur Herstellung derselben |
EP1065698B1 (en) | 1999-07-02 | 2008-07-30 | Phoenix Electric Co., Ltd. | Mount for lamp and lamp seal structure employing the mount |
US6626725B1 (en) * | 2000-05-08 | 2003-09-30 | Welch Allyn, Inc | Electrode treatment surface process for reduction of a seal cracks in quartz |
JP3425929B2 (ja) * | 2000-07-04 | 2003-07-14 | エヌイーシーマイクロ波管株式会社 | 高圧放電灯およびその製造方法 |
KR20030019167A (ko) * | 2001-08-30 | 2003-03-06 | 마쯔시다덴기산교 가부시키가이샤 | 고압방전 램프 및 그 제조방법 |
JP2004079323A (ja) * | 2002-08-16 | 2004-03-11 | Fuji Photo Film Co Ltd | 放電管の製造方法 |
US7198534B2 (en) * | 2003-01-24 | 2007-04-03 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing high-pressure discharge lamp, glass tube for high-pressure discharge lamp, and lamp element for high-pressure discharge lamp |
JP2004363014A (ja) * | 2003-06-06 | 2004-12-24 | Nec Lighting Ltd | 高圧放電ランプの製造方法 |
JP4509754B2 (ja) * | 2004-12-02 | 2010-07-21 | 株式会社小糸製作所 | 放電ランプ装置用アークチューブおよび同アークチューブの製造方法 |
JP4407820B2 (ja) * | 2004-12-27 | 2010-02-03 | ウシオ電機株式会社 | 高圧放電ランプおよび、この高圧放電ランプにおけるタングステン電極とモリブテン箔の溶接方法 |
JP5365799B2 (ja) * | 2009-10-23 | 2013-12-11 | ウシオ電機株式会社 | 高圧放電ランプおよび高圧放電ランプの製造方法 |
-
2010
- 2010-09-14 JP JP2010205008A patent/JP4853843B1/ja not_active Expired - Fee Related
-
2011
- 2011-06-28 WO PCT/JP2011/064770 patent/WO2012035846A1/ja active Application Filing
- 2011-06-28 US US13/395,733 patent/US8795019B2/en active Active
- 2011-06-28 CN CN2011800040677A patent/CN102576636A/zh active Pending
- 2011-06-28 EP EP11824309.6A patent/EP2509093A4/en not_active Withdrawn
- 2011-06-28 CA CA2772118A patent/CA2772118A1/en not_active Abandoned
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JP2001023571A (ja) * | 1999-07-02 | 2001-01-26 | Phoenix Denki Kk | ランプ用マウントとランプの封止部構造及び封止方法 |
JP2009099338A (ja) * | 2007-10-16 | 2009-05-07 | Ushio Inc | 超高圧放電ランプ |
JP2009146590A (ja) * | 2007-12-11 | 2009-07-02 | Ushio Inc | 放電ランプ |
Non-Patent Citations (1)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013084494A (ja) * | 2011-10-12 | 2013-05-09 | Iwasaki Electric Co Ltd | 電極マウント、それを用いた高圧放電ランプ、及びそれらの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4853843B1 (ja) | 2012-01-11 |
JP2012064315A (ja) | 2012-03-29 |
US8795019B2 (en) | 2014-08-05 |
CA2772118A1 (en) | 2012-03-14 |
CN102576636A (zh) | 2012-07-11 |
US20120286656A1 (en) | 2012-11-15 |
EP2509093A4 (en) | 2014-04-16 |
EP2509093A1 (en) | 2012-10-10 |
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