KR20120106553A - Long arc type metal halide lamp - Google Patents

Long arc type metal halide lamp Download PDF

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KR20120106553A
KR20120106553A KR1020120016402A KR20120016402A KR20120106553A KR 20120106553 A KR20120106553 A KR 20120106553A KR 1020120016402 A KR1020120016402 A KR 1020120016402A KR 20120016402 A KR20120016402 A KR 20120016402A KR 20120106553 A KR20120106553 A KR 20120106553A
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South Korea
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light emitting
metal halide
halide lamp
long arc
shaft diameter
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KR1020120016402A
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Korean (ko)
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KR101516051B1 (en
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시게키 후지사와
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우시오덴키 가부시키가이샤
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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
    • H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
    • 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
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • 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
    • 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
    • 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
    • H01J9/26—Sealing together parts of vessels
    • H01J9/265—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps
    • H01J9/266—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps specially adapted for gas-discharge lamps

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)

Abstract

PURPOSE: A long arc-type metal halide lamp is provided to prevent coagulation or condensation of encapsulation metal by forming a cylindrical shape part of concentric shape with a cylindrical shape base. CONSTITUTION: A pair of electrodes is arranged on a lighting-emitting part(2) to be faced. A light-emitting tube is formed into a sealing part(3) installed on both sides of the lighting-emitting part. A narrow diameter part(10) is installed between the lighting-emitting part and the sealing part. The narrow diameter part forms cylindrical shape parts(11a,11b) of concentric shape with a cylindrical shape base(6). The cylindrical shape base covers the sealing part and the narrow diameter part.

Description

롱 아크형 메탈 할라이드 램프{LONG ARC TYPE METAL HALIDE LAMP}Long arc type metal halide lamp {LONG ARC TYPE METAL HALIDE LAMP}

본 발명은, 롱 아크형 메탈 할라이드 램프에 관한 것이며, 특히, 발광관 내에 수은, 및 철 등의 금속과, 할로겐이 봉입된 롱 아크형 메탈 할라이드 램프에 관한 것이다.TECHNICAL FIELD The present invention relates to a long arc metal halide lamp, and more particularly, to a long arc metal halide lamp in which metals such as mercury and iron and halogen are enclosed in a light emitting tube.

종래부터, 발광관 내에, 수은과, 다른 금속과, 할로겐이 봉입된 롱 아크형 메탈 할라이드 램프는, 자외선을 방사하는 램프로서, 예를 들면, 수지, 접착제, 잉크, 포토 레지스트의 경화나, 건조, 용융, 혹은 연화와 같은 다양한 처리의 용도에 폭넓게 이용되고 있다. 구체적으로는, 접착제 등이 도포된 피조사물(워크)에 대해 자외선을 조사하여, 화학 반응을 일으킴으로써 처리가 이루어진다. 일본국 특허 공개 2008－311119호 공보(특허 문헌 1) 등에 그 구조가 나타나 있다.Conventionally, a long arc type metal halide lamp in which mercury, other metals, and halogens are enclosed in a light emitting tube is a lamp that emits ultraviolet rays, for example, curing of resins, adhesives, inks, photoresists, or drying. It is widely used in various processing applications, such as melting, melting, or softening. Specifically, the treatment is performed by irradiating ultraviolet rays to the irradiated object (workpiece) coated with an adhesive or the like to cause a chemical reaction. The structure is shown by Unexamined-Japanese-Patent No. 2008-311119 (patent document 1).

도 4에 이 롱 아크형 메탈 할라이드 램프의 종래예가 나타나 있다. 도 4(A)는 램프 전체의 단면도, 도 4(B)는 그 시일링 부분의 확대 단면도이다.Fig. 4 shows a conventional example of this long arc metal halide lamp. Fig. 4A is a sectional view of the entire lamp, and Fig. 4B is an enlarged sectional view of the sealing portion.

도 4에 나타난 바와 같이, 롱 아크형 메탈 할라이드 램프는, 발광부(2)와, 그 양단의 시일링부(3)로 이루어지는 발광관(1)을 구비하고 있고, 상기 발광부(2)와 시일링부(3) 사이에는, 상기 발광부(2)로부터 시일링부(3)를 향해 점차 직경이 작아지는 축경부(縮徑部)(4)가 설치되어 있다.As shown in FIG. 4, the long arc metal halide lamp includes a light emitting tube 1 including a light emitting portion 2 and a sealing portion 3 at both ends, and the light emitting portion 2 and the seal are provided. Between the ring parts 3, the shaft diameter part 4 which becomes smaller gradually from the said light emitting part 2 toward the sealing part 3 is provided.

상기 발광부(2) 내에는, 수은이나 다른 금속 및, 할로겐 등이 봉입됨과 더불어, 한 쌍의 전극(5, 5)이 대향 배치되어 있다.In the light emitting portion 2, mercury, other metals, halogens, and the like are sealed, and a pair of electrodes 5 and 5 are disposed to face each other.

그리고, 상기 시일링부(3)에는, 당해 시일링부(3) 및 상기 축경부(4)를 덮도록 원통형상 베이스(6)가 접착제(7) 등에 의해 부착되어 있다.The cylindrical base 6 is attached to the sealing portion 3 so as to cover the sealing portion 3 and the shaft diameter portion 4 by an adhesive 7 or the like.

그런데, 최근에는, 이러한 롱 아크형 메탈 할라이드 램프에 대한 환경 부하저감의 요청이 강하여, 램프의 사용 전력 저감이 요구되고 있다.By the way, in recent years, the request | requirement of the environmental load reduction with respect to such a long arc type metal halide lamp is strong, and the reduction of the use power of a lamp is calculated | required.

이러한 배경으로, 사용 전력 저감을 위해, 빈번하게 투입 전력을 전환해서 사용하는 점등 방법이 검토되고 있다.Against this background, in order to reduce the power used, a lighting method that frequently switches input power and uses the power has been studied.

예를 들면, 워크 조사시에는 통상 점등시의 전력으로 점등하고, 워크 반송 등의 대기시에는 그보다도 전력을 내리고, 조사가 필요할 때에 다시 전력을 올리는 것과 같은 점등 전력의 전환을 하는 점등 방법(이하, 풀?스탠바이 점등이라고 함)이다.For example, a lighting method that switches on the lighting power such as turning on the power at normal lighting during work irradiation, lowering the power more than that at the time of work conveyance, and turning on the power again when irradiation is required (hereinafter, , Full standby lighting).

한편, 환경 문제로부터 수은의 사용량을 제한한다는 요청도 있어서, 이 요청에 부응하기 위해, 수은량을 저감한 메탈 할라이드 램프에 대해서, 상기와 같이 빈번하게 전력 전환을 행한 점등을 한 바, 이하와 같은 문제가 발생했다.On the other hand, there is also a request to limit the amount of mercury used due to environmental problems. In order to meet this request, the metal halide lamps with reduced mercury levels are turned on as frequently as described above. There was a problem.

풀?스탠바이 점등을 하면, 발광관의 시일링부 부근이 통상 점등(풀 점등) 시에 600℃가 되고, 대기 점등(스탠바이 점등)시에 400℃가 된다.When the full standby light is turned on, the vicinity of the sealing portion of the light emitting tube is 600 ° C at the time of normal lighting (full lighting), and 400 ° C at the time of standby lighting (standby lighting).

발광관의 내부에서는, 양단의 시일링부에 가까울수록, 아크로부터도 멀고, 또한 냉각풍에 노출되어 있어서, 온도가 가장 낮다.Inside the light emitting tube, the closer to the sealing part of both ends, the farther it is from an arc and it is exposed to cooling wind, and the temperature is lowest.

통상 점등시와, 대기 점등시에 같은 조건으로 램프를 냉각하고 있으면, 대기 점등시에 시일링부가 너무 냉각되어 버려, 내부에 봉입한 금속이 증기로부터 액체 또는 고체로 응축?응고되어 버리기 때문에, 다시 통상 점등시로 되돌렸을 때에, 금속이 증발하기까지 시간이 걸린다는 문제가 있었다.If the lamp is cooled under the same conditions at the time of normal lighting and at the time of atmospheric lighting, the sealing part is cooled too much at the time of atmospheric lighting, and the metal enclosed inside condenses and solidifies from vapor to liquid or solid. When returning to normal lighting, there exists a problem that it takes time before a metal evaporates.

상기 종래 기술에 있어서는, 도 4(B)에 나타낸 바와 같이, 발광관(2) 단부의 축경부(4)로부터 방사되는 복사광(X)은 베이스(6)의 내벽에서 반사되고, 후방으로 방사되어 버려, 발광관 단부의 가열에는 조금도 기여하지 않고, 당해 부위에서의 봉입 금속의 응고?응축을 아무래도 피할 수 없었다.In the above prior art, as shown in Fig. 4B, the radiant light X emitted from the shaft diameter portion 4 at the end of the light emitting tube 2 is reflected at the inner wall of the base 6 and radiated backward. It hardly contributes to the heating of the light-emitting tube end part, and the coagulation | solidification and condensation of the encapsulation metal in the said site was unavoidable.

일본국 특허 공개 2008－311119호 공보Japanese Patent Publication No. 2008-311119

본 발명은, 이상과 같은 사정에 의거하여 이루어진 것이며, 한 쌍의 전극이 대향 배치된 발광부와, 당해 발광부의 양단에 설치된 시일링부로 이루어지는 발광관을 구비하고, 상기 발광부와 시일링부 사이에는 축경부가 설치되고, 적어도 상기 축경부를 덮는 원통형상 베이스를 갖는 롱 아크형 메탈 할라이드 램프에 있어서, 풀?스탠바이 점등에 있어서의 스탠바이 점등시에 냉각풍에 의해 축경부 내에서 봉입 금속이 응축 또는 응고되지 않도록 한 구조를 제공하려고 하는 것이다.This invention is made | formed based on the above circumstances, Comprising: The light-emitting tube which consists of a light-emitting part in which a pair of electrodes opposingly arranged, and the sealing part provided in the both ends of the said light-emitting part, is provided between the said light-emitting part and a sealing part. In a long arc type metal halide lamp having a shaft base portion and having a cylindrical base covering at least the shaft diameter portion, the encapsulated metal is condensed or solidified in the shaft portion by cooling wind during standby lighting in full standby lighting. I'm trying to provide a structure that prevents it.

상기 과제를 해결하기 위해서, 이 발명에 따른 롱 아크형 메탈 할라이드 램프는, 상기 축경부는, 상기 원통형상 베이스와 동심형상의 원통형상부를 갖는 것을 특징으로 한다.In order to solve the said subject, the long arc type metal halide lamp which concerns on this invention is characterized in that the said shaft diameter part has a cylindrical shape concentric with the said cylindrical base.

또, 상기 축경부는, 램프의 관축방향에 있어서의 상기 축경부의 원통형상부의 길이의 합계가, 상기 축경부의 원통형상부 이외의 부분의 길이의 합계보다도 큰 것을 특징으로 한다.Moreover, the said shaft diameter part is characterized in that the sum total of the length of the cylindrical part of the said shaft diameter part in the tube axial direction of a lamp is larger than the sum total of the length of parts other than the cylindrical part of the said shaft diameter part.

본 발명에 의하면, 축경부에 원통형상 베이스와 동심형상의 원통형상부를 형성함으로써, 상기 축경부로부터 방사되는 열이 베이스에 의해 반사되어 다시 축경부로 되돌아옴으로써, 상기 축경부가 가열되므로, 이 내부에서 봉입 금속이 응축 혹은 응고되는 것을 방지할 수 있다.According to the present invention, by forming the cylindrical base and the concentric cylindrical portion in the shaft diameter portion, heat radiated from the shaft diameter portion is reflected by the base and returned to the shaft diameter portion, whereby the shaft diameter portion is heated, so that the inside To prevent condensation or solidification of the encapsulated metal.

도 1은 본 발명의 롱 아크형 메탈 할라이드 램프의 단면도.
도 2는 도 1의 시일링부 근방 부분의 확대 단면도.
도 3은 본 발명의 효과를 나타내는 표.
도 4는 종래 기술의 단면도로서, (A)는 전체 단면도, (B)는 부분 단면도.1 is a cross-sectional view of a long arc metal halide lamp of the present invention.
FIG. 2 is an enlarged sectional view of a portion near the sealing portion of FIG. 1. FIG.
3 is a table showing the effects of the present invention.
4 is a sectional view of the prior art, (A) is a full sectional view, (B) is a partial sectional view.

도 1에 본 발명의 롱 아크형 메탈 할라이드 램프의 전체도가 나타나 있고, 도 2에 그 축경부 부분의 확대도가 나타나 있다.The overall view of the long arc metal halide lamp of this invention is shown in FIG. 1, and the enlarged view of the shaft diameter part is shown in FIG.

롱 아크형 메탈 할라이드 램프는, 발광부(2)와 그 양단의 시일링부(3, 3)로 이루어지는 발광관(1)을 갖고, 발광부(2)에서 시일링부(3)에 걸쳐서는, 축경부(10)가 형성되어 있고, 상기 축경부(10)에는, 이것을 둘러싸는 원통형상 베이스(6)와 동심형상으로 되는 복수의 원통형상부(11a, 11b)가 형성되어 있다.The long arc type metal halide lamp has a light emitting tube 1 composed of a light emitting portion 2 and sealing portions 3 and 3 at both ends thereof, and the light emitting portion 2 extends from the light emitting portion 2 to the sealing portion 3. The neck portion 10 is formed, and the shaft diameter portion 10 is formed with a plurality of cylindrical portions 11a and 11b concentric with the cylindrical base 6 surrounding the shaft portion 10.

이들 원통형상부(11a, 11b)의 관축방향의 길이의 합계는, 이 이외에, 즉 비원통형상부(12a, 12b, 12c)의 길이의 합계보다도 커지도록 형성되어 있다.The sum total of the length of the cylindrical part 11a, 11b in the axial direction is formed so that it may become larger than the sum total of the length of the non-cylindrical part 12a, 12b, 12c other than this.

이러한 구성으로 함으로써, 도 2에 나타낸 바와 같이, 축경부(10)의 원통형상부(11)로부터 방사되는 복사광(Y)은, 관축에 대해 수직이 되므로, 베이스(6)의 내벽에 대해 직각으로 조사되고, 그 반사광(Z)도 관축에 수직으로 반사되어, 축경부(11)로 되돌려진다.By setting it as such a structure, as shown in FIG. 2, since the radiation Y radiated | emitted from the cylindrical part 11 of the shaft diameter part 10 becomes perpendicular | vertical with respect to a tube axis, it is perpendicular to the inner wall of the base 6. Irradiated, the reflected light Z is also reflected perpendicularly to the tube axis and returned to the shaft diameter portion 11.

이에 의해, 발광부(2)의 축경부(10) 근방은, 이 반사광에 의해 가열되어, 발광부(2) 내의 봉입 금속이 응축되는 일이 없어진다.Thereby, the vicinity of the shaft diameter part 10 of the light emitting part 2 is heated by this reflected light, and the encapsulation metal in the light emitting part 2 does not condense.

본 발명의 효과를 실증하는 실험을 행하고, 그 결과를 도 3의 표에 나타냈다.The experiment which demonstrates the effect of this invention was done, and the result was shown to the table of FIG.

우선, 실험에 사용한 롱 아크형 메탈 할라이드 램프는, 발광관 외경이 φ26mm, 발광 길이가 1100mm, 정격 전압이 18kW, 램프 입력 전력이 160W/cm, 봉입물은, 수은이 1.0μmol/cc, 철이 0.2μmol/cc이고, 옥소를 0.4μmol/cc, 크세논 가스를 50torr 봉입한 것이다.First, the long arc type metal halide lamp used in the experiment has a light tube outer diameter of 26 mm, a light emission length of 1100 mm, a rated voltage of 18 kW, a lamp input power of 160 W / cm, and an inclusion of mercury of 1.0 μmol / cc and iron of 0.2. It is micromol / cc, 0.4 micromol / cc of oxo, and 50 torr of xenon gas are enclosed.

이 램프의 축경부에 원통형상부를 형성한 도 1, 도 2의 본 발명 램프와, 원통형상부를 설치하지 않고 R형상으로 한 도 4에 나타낸 종래 램프를 작성하여, 도 1에 나타낸 3개소의 측정점에서 온도 측정을 행했다. 즉, 발광부의 중앙부(A)(발광부 온도), 전극 선단의 바로 직상단부(B)(단부 온도), 시일링부와 발광부의 접합부(C)(견부 온도)의 세 점에서 측정했다.The lamp of the present invention of FIG. 1 and FIG. 2 in which the cylindrical part was formed in the shaft diameter part of this lamp, and the conventional lamp shown in FIG. 4 made into R shape without providing a cylindrical part were created, and the three measuring points shown in FIG. Temperature measurement was performed at. That is, it measured at three points: the center part A (light emitting part temperature) of a light emitting part, the immediately upper end part B (end temperature) of an electrode tip, and the junction part C (lead temperature) of a sealing part and a light emitting part.

그 결과가 도 3에 나타나 있고, 본 발명 램프에서는, 단부 온도가 종래 램프의 동일 개소에서의 온도보다 70℃정도 높아져 보온 성능이 높아졌음이 실증되었다.The results are shown in Fig. 3, and the lamp of the present invention demonstrated that the end temperature was about 70 ° C higher than the temperature at the same location of the conventional lamp, so that the thermal insulation performance was improved.

또, 당해 단부 온도(923℃)가, 발광부 온도(860℃)보다도 높아져, 당해 부분으로 메탈 할라이드가 침입하는 것을 방지할 수 있음이 실증되었다.Moreover, it was demonstrated that the said end temperature (923 degreeC) became higher than the light emission part temperature (860 degreeC), and it can prevent that a metal halide penetrates into the said part.

이상 설명한 바와 같이, 본 발명의 롱 아크형 메탈 할라이드 램프에서는, 발광관의 발광부와 시일링부 사이의 축경부에, 원통형상 베이스와 동심형상의 원통형상부를 형성했으므로, 상기 축경부로부터의 복사광이 베이스에 의해 반사되어 다시 축경부로 되돌려지고, 당해 부분을 보온하기 위해, 발광관 내에 봉입된 금속의 증기가 당해 부분에 침입하는 것을 방지하여, 당해 개소에서 응고?응축되는 것을 방지할 수 있는 것이다.As described above, in the long arc type metal halide lamp of the present invention, since the cylindrical base and the concentric cylindrical portion are formed in the shaft diameter portion between the light emitting portion and the sealing portion of the light emitting tube, the radiant light from the shaft diameter portion is The base is reflected by the base and returned back to the shaft diameter portion. In order to insulate the portion, the vapor of the metal enclosed in the light emitting tube can be prevented from invading the portion, thereby preventing solidification and condensation at the portion. will be.

이로써, 봉입 금속이 모두 증발해 발광에 기여하므로, 원하는 발광을 얻을 수 있다. As a result, all of the encapsulated metal evaporates and contributes to light emission, so that desired light emission can be obtained.

1 : 발광관
2 : 발광부
3 : 시일링부
5 : 전극
6 : 베이스
10 : 축경부
11a, 11b : 원통형상부
Y : 복사광
Z : 반사광1: light emitting tube
2: light emitting unit
3: sealing part
5: electrode
6: base
10: shaft diameter part
11a, 11b: cylindrical upper part
Y: radiant light
Z: reflected light

Claims (2)

한 쌍의 전극이 대향 배치된 발광부와, 당해 발광부의 양단에 설치된 시일링부로 이루어지는 발광관을 구비하고, 상기 발광부와 시일링부 사이에는 축경부(縮徑部)가 설치되고, 적어도 상기 축경부를 덮는 원통형상 베이스를 갖는 롱 아크형 메탈 할라이드 램프에 있어서,
상기 축경부는, 상기 원통형상 베이스와 동심형상의 원통형상부를 갖는 것을 특징으로 하는 롱 아크형 메탈 할라이드 램프.A light emitting tube including a light emitting portion having a pair of electrodes disposed opposite to each other, and a sealing portion provided at both ends of the light emitting portion, wherein an axis diameter portion is provided between the light emitting portion and the sealing portion, and at least the shaft A long arc metal halide lamp having a cylindrical base covering a neck,
And the shaft diameter portion has a cylindrical portion concentric with the cylindrical base. 청구항 1에 있어서,
상기 축경부는, 램프의 관축방향에 있어서의 상기 축경부의 원통형상부의 길이의 합계가, 상기 축경부의 원통형상부 이외의 부분의 길이의 합계보다도 큰 것을 특징으로 하는 롱 아크형 메탈 할라이드 램프.The method according to claim 1,
The long-axis type metal halide lamp according to claim 2, wherein the total diameter of the cylindrical portion of the shaft diameter portion in the tube axis direction of the lamp is larger than the total length of the portions other than the cylindrical portion of the shaft diameter portion.
KR1020120016402A 2011-03-18 2012-02-17 Long arc type metal halide lamp KR101516051B1 (en)

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