WO2020004255A1 - Xenon flash lamp for sterilizing container - Google Patents

Xenon flash lamp for sterilizing container Download PDF

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Publication number
WO2020004255A1
WO2020004255A1 PCT/JP2019/024693 JP2019024693W WO2020004255A1 WO 2020004255 A1 WO2020004255 A1 WO 2020004255A1 JP 2019024693 W JP2019024693 W JP 2019024693W WO 2020004255 A1 WO2020004255 A1 WO 2020004255A1
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Prior art keywords
flash lamp
xenon flash
container
arc tube
shape
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PCT/JP2019/024693
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French (fr)
Japanese (ja)
Inventor
能章 黒田
航一 小林
亮 大河原
隆史 伊比
原澤　弘一
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岩崎電気株式会社
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Priority to CN201980043314.0A priority Critical patent/CN112335015B/en
Publication of WO2020004255A1 publication Critical patent/WO2020004255A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultra-violet radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes

Definitions

  • the present invention relates to a xenon flash lamp for sterilizing containers. More specifically, the present invention relates to a configuration of a xenon flash lamp used for sterilizing inner surfaces of containers such as deep trays, cups, and bottles used as containers for food and drinking water.
  • Xenon flash lamps are used for flash pulse sterilization.
  • Xenon flash lamps contain abundant ultraviolet light with a wavelength of 200 to 300 nm, which is effective for sterilization.
  • the flash sterilization process using a xenon flash lamp has a strong sterilizing effect, easy pulse control of light emission, no residue due to non-contact, and extremely short pulse irradiation for the object to be treated ( Containers and the like).
  • the flash pulse sterilization treatment has a drawback that only the portion that can be irradiated with light can be sterilized. Therefore, even when irradiating the xenon flash lamp from the outside of the container, light does not sufficiently reach a part of the inner surface of the container (eg, the bottom of the container or a bottle-shaped shoulder having a small opening), and sufficient sterilization is not performed. There is a risk.
  • Patent Documents 1 to 3 have a part of an arc tube inserted into a container.
  • Patent Documents 1 to 3 there is no description regarding the problem that occurs in the container insertion portion of the arc tube and the regulation of the glass strength for solving the problem.
  • an object of the present invention is to provide a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
  • a xenon flash lamp is a xenon flash lamp including an arc tube formed of a cylindrical glass tube, Part of the arc tube is bent into a U-shape that can be partially inserted into the container opening,
  • the inner thickness t1 [mm] of the U-shaped bent portion is in the range of 0.8 ⁇ t1 ⁇ 2.5
  • the thickness t2 [mm] of the U-shaped straight portion Us is in the range of 0.4 ⁇ t2 ⁇ 2.0.
  • the inner thickness t1 [mm] of the U-shaped bent portion and the thickness t2 [mm] of the straight portion Us may be in the range of 0.8 ⁇ t1, t2 ⁇ 2.0.
  • the arc tube may be bent in a T shape.
  • the arc tube may be bent in a Y-shape or a katakana "g" shape.
  • the length of the bent portion inserted into the container from the container opening may be determined according to the depth of the container.
  • the trigger line may be present along the outer peripheral surface of the arc tube.
  • a central portion of the arc tube may be formed in a U-shape.
  • the left end portion, the center portion, and the right end portion of the arc tube are connected so as to form a discharge space having the same outer diameter, both end portions are sealed, and one end portion is sealed.
  • An anode electrode may be arranged, and a cathode electrode may be arranged at the other end.
  • the U-shaped portion at the center is inserted deeply into the inside of the container through the opening, and the U-shaped portion is covered with a quartz jacket covered with a Teflon (registered trademark) film. It may be.
  • a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
  • FIG. 1 is a diagram illustrating a conventional xenon flash lamp.
  • FIG. 2 is a diagram illustrating a xenon flash lamp according to the present embodiment.
  • FIG. 3 is a diagram illustrating an example of a container to be sterilized.
  • FIG. 4 is a diagram illustrating a state in which the inner surface of the container is being sterilized using the xenon flash lamp according to the present embodiment.
  • FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube.
  • FIG. 5 (A) is a view mimicking an X-ray photograph
  • FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting
  • FIG. FIG. FIG. 6 is a diagram illustrating a lighting circuit of the xenon flash lamp according to the present embodiment.
  • FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according
  • a feature of the xenon flash lamp according to the present embodiment lies in the shape of the lamp as compared with the conventional xenon flash lamp. Therefore, in order to facilitate understanding of the xenon flash lamp according to the present embodiment, a brief description will first be given of a conventional xenon flash lamp.
  • FIG. 1 is a diagram illustrating a conventional xenon flash lamp.
  • the conventional xenon flash lamp 110 has a structure in which an anode electrode 104a and a cathode electrode 104b are arranged at both ends of an arc tube 102 in which xenon of a rare gas is sealed.
  • the arc tube 102 is made of quartz glass having a high ultraviolet transmittance, and is formed into a straight cylindrical shape having a fixed thickness with both ends sealed.
  • a trigger line (also referred to as “starting auxiliary electrode”) 108 is arranged along the outer peripheral surface of the arc tube 102.
  • the trigger wire 108 includes a plurality of ring wires 108-1 each surrounding the arc tube while being in close contact with the outer peripheral surface of the arc tube 102, and a plurality of ring wires 108 extending along the axis of the arc tube. -1 for connecting to the connecting wire 108-2.
  • the anode electrode 104a is formed of a tungsten rod having an anode large-diameter portion 104a-2 formed by processing the tip (the arc tube side) of the electrode lead rod 104a-1 into a cylindrical shape.
  • the cathode-side electrode 104b is formed into a columnar shape at the tip (the arc tube side) of the electrode lead rod 104b-1 to form a cathode large-diameter portion 104b-2.
  • a columnar sintered body (also referred to as an “emitter”) 104b-3 made of a substance is formed by a tungsten rod to which is fixed.
  • the ring wire 108-1 is positioned around the distal end of the emitter 104b-3.
  • the opposite sides of the electrode lead bars 104a-1 and 104b-1 from the arc tube are connected to lead wires 103a and 103b, respectively.
  • FIG. 2 is a diagram illustrating the xenon flash lamp 10a according to the present embodiment.
  • a trigger line is not shown, but actually the trigger line exists along the outer peripheral surface of the arc tube 2 as in FIG.
  • the following description focuses on differences from the conventional xenon flash lamp 110 shown in FIG.
  • the anode electrode 4a and the cathode electrode 4b are arranged opposite to each other at both ends of the arc tube 2, but the central portion 2b of the arc tube 2 is U-shaped. In that it is formed in The U-shaped portion 2b-1 is a portion to be inserted into the container from the opening.
  • the left end portion 2a, the center portion 2b, and the right end portion 2c of the arc tube 2 are connected to form a discharge space having the same outer diameter, and both ends are sealed.
  • an anode large-diameter portion 4a-2 and an electrode lead rod 4a-1 are arranged at a left end portion 2a of the arc tube 2, and an emitter portion 4b is arranged at an opposite right end portion 2c.
  • a cathode large diameter portion 4b-2 and an electrode lead rod 4b-1 are arranged.
  • FIG. 3 is a diagram illustrating an example of a container to be sterilized.
  • FIG. 4 is a view for explaining a situation in which the inner surface of the container 12 is sterilized using the xenon flash lamp 10a according to the present embodiment.
  • the U-shaped portion 2b-1 of the central portion 2b is inserted deep into the inside from the container opening 12a.
  • the U-shaped portion 2b-1 of the central portion 2b is covered with a quartz jacket 6 covered with a Teflon (registered trademark) film.
  • Teflon registered trademark
  • the first feature of the xenon flash lamp 10a is that the U-shaped portion 2b-1 of the central portion 2b is inserted into the container 12 from the opening 12a.
  • the entire inner surface of the container can be directly irradiated with light to enable sterilization.
  • the enclosed right end portion 2c is arranged outside the container 12.
  • FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube.
  • FIG. 5 (A) is a view mimicking an X-ray photograph
  • FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting
  • FIG. 5 (C) is a view mimicking a photograph of a devitrification and leak hole.
  • the present inventors have investigated the location of the occurrence of devitrification and leak holes, and found that they occur at a U-shaped bent portion.
  • the glass strength in this part seems to be relatively weak.
  • the glass thickness of the U-shaped portion 2b-1 was controlled.
  • Several prototypes having different glass thicknesses were prepared, and the optimum range of the inner thickness t2 of the bent portion Ub and the thickness t2 of the straight portion Us were determined.
  • Table 1 shows the experimental results.
  • FIG. 5 is a diagram illustrating an example of the lighting circuit 30 of the xenon flash lamp shown in FIG.
  • reference numeral 10a is a lamp
  • reference numeral 8 is a trigger line.
  • the lighting circuit 30 includes a commercial AC power supply 22, a charging high-voltage power supply circuit 24 for boosting and rectifying the commercial AC power supply 22, a charging / discharging capacitor 26 for storing the output, and a waveform adjusting coil 28. Power is being supplied. Further, an external trigger generating circuit 32 for starting and a pulse boosting transformer 34 which boosts a trigger pulse and sends it to the trigger line 8 are provided.
  • the xenon flash lamp according to the present embodiment has the following advantages and features.
  • (1) The central portion 2b of the arc tube of the xenon flash lamp is formed in the U-shaped portion 2b-1, and the inner thickness t1 [mm] of the bent portion is in the range of 0.8 ⁇ t1 ⁇ 2.5 and the U-shape.
  • the thickness t2 [mm] of the straight portion Us within the range of 0.4 ⁇ t2 ⁇ 2.0, a sufficient amount of light can be ensured without devitrification and leakage.
  • t1 and t2 are not individually controlled. In this case, by setting the range of 0.8 ⁇ t1 and t2 ⁇ 2.0, a sufficient amount of light can be ensured without devitrification or leakage.
  • the length of the portion bent into a shape that can be inserted into the inside from the container opening can be determined according to the depth of the container, and the inner peripheral surface and the bottom of the container can be irradiated with ultraviolet rays. I can do it.
  • FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according to the present embodiment.
  • a katakana "g" in which one of both end portions 2a and 2c shown in FIG. 7 (B) extends horizontally to the arc tube center 2b and the other extends vertically.
  • a character shape, a combination thereof (one is an oblique direction, the other is a horizontal or vertical direction), and the like are conceivable.
  • 2 arc tube, 2a: left end portion, 2b: center portion and center portion of arc tube, 2b-1: U-shaped portion, 2c: right end portion, 4a: anode electrode, 4a-1: electrode lead rod, 4a-2 : Large diameter part of anode, 4bb: Cathode electrode, 4b-1: Electrode lead rod, 4b-2: Large diameter part of cathode, 4b-3: Emitter, 6: Quartz jacket, 10a, 10b, 10c: Xenon flash lamp, 12 : Container, 12a: container opening, opening, 22: commercial AC power supply, 24: high voltage power supply circuit for charging, 26: capacitor for charging and discharging, 28: coil for adjusting waveform, 30: lighting circuit, 32: external for starting Trigger generation circuit, 34: pulse booster transformer, 102: arc tube, 103a, 103b: lead wire, 104a: anode electrode, 104a-1: electrode lead rod, 104a: anode large diameter portion, 1 4b: Cath

Abstract

The purpose of the present invention is to provide a xenon flash lamp that has a U-shaped insertion part to be inserted into a container and exhibits a lamp life equivalent to that of a conventional straight tube-type lamp. A xenon flash lamp for sterilizing a container according to the present invention is provided with a light-emitting tube composed of a cylindrical glass tube, wherein a portion of the light-emitting tube is partially bent in a U-shape that can be inserted into an opening of the container, the inner thickness t1 [mm] of the bent portion of the U-shape is in the range of 0.8≤t1≤2.5, and the thickness t2 [mm] of straight portions Us of the U-shape is in the range of 0.4≤t2≤2.0.

Description

容器殺菌用のキセノンフラッシュランプXenon flash lamp for container sterilization
　本発明は、容器殺菌用のキセノンフラッシュランプに関する。更に具体的には、本発明は、食品や飲料水等の容器として利用される深型のトレイ、カップ、ボトル等の容器の内面を殺菌処理するため使用されるキセノンフラッシュランプの構成に関する。 The present invention relates to a xenon flash lamp for sterilizing containers. More specifically, the present invention relates to a configuration of a xenon flash lamp used for sterilizing inner surfaces of containers such as deep trays, cups, and bottles used as containers for food and drinking water.
　食品や飲料水の製造・加工メーカーでは、それらの容器を確実に殺菌処理することが重要である。消費者ニーズの多様化により、食品や飲料水の低塩化、保存料の廃止、賞味期限の延長等により、容器に対する確実な殺菌処理が求められている。 It is important for food and drinking water manufacturers and processors to ensure that their containers are sterilized. Due to diversification of consumer needs, reliable sterilization of containers has been required due to low salinization of food and drinking water, abolition of preservatives, extension of shelf life, and the like.
　現在、加熱処理、薬剤による殺菌処理に代わり又はこれと併用して、非加熱・非接触で殺菌が可能な殺菌技術の開発が進められている。このような、非加熱・非接触の殺菌技術として、閃光パルス殺菌処理が注目されている。 Currently, sterilization technology capable of sterilization without heating and without contact is being developed instead of or in combination with heat treatment and sterilization treatment with chemicals. As such a non-heating / non-contact sterilization technique, a flash pulse sterilization process has attracted attention.
　閃光パルス殺菌処理には、キセノンフラッシュランプが使用されている。キセノンフラッシュランプの発光には、殺菌に有効な波長200～300ｎｍの紫外線を豊富に含んでいる。 キ Xenon flash lamps are used for flash pulse sterilization. Xenon flash lamps contain abundant ultraviolet light with a wavelength of 200 to 300 nm, which is effective for sterilization.
　キセノンフラッシュランプを利用した閃光殺菌処理は、殺菌効果が強力であり、発光のパルス制御が容易であり、非接触のため残留物が発生せず、極めて短時間のパルス照射のため処理対象物（容器等）への影響が少ない等の利点を有している。 The flash sterilization process using a xenon flash lamp has a strong sterilizing effect, easy pulse control of light emission, no residue due to non-contact, and extremely short pulse irradiation for the object to be treated ( Containers and the like).
　その反面、閃光パルス殺菌処理は、光が照射できる部分しか殺菌できないという欠点がある。そのため、容器の外部からキセノンフラッシュランプを照射しても、容器内面の一部（例えば、容器底面や開口の小さいボトル形状の肩部）に光が十分に届かず、十分な殺菌が行われないおそれがある。 On the other hand, the flash pulse sterilization treatment has a drawback that only the portion that can be irradiated with light can be sterilized. Therefore, even when irradiating the xenon flash lamp from the outside of the container, light does not sufficiently reach a part of the inner surface of the container (eg, the bottom of the container or a bottle-shaped shoulder having a small opening), and sufficient sterilization is not performed. There is a risk.
　従来、次に挙げるようなキセノンフラッシュランプの一部を容器内に挿入し、容器の内部からパルス照射する殺菌方法が提案されている。 Conventionally, there has been proposed a sterilization method in which a part of a xenon flash lamp described below is inserted into a container and pulse irradiation is performed from the inside of the container.
特開2001-247108「容器殺菌方法及び装置」（2001/9/11公開）出願人：食品産業電子利用技術研究組合Japanese Patent Application Laid-Open No. 2001-247108 "Method and Apparatus for Sterilizing Containers" (published on September 11, 2001) 特開平06-191521「容器殺菌装置」（1994/7/12公開）出願人：株式会社豊振科学産業所（特許2747961）Japanese Patent Application Laid-Open No. 06-191521 "Container sterilizer" (published on July 12, 1994) 特開2000-53111「容器殺菌方法及び装置」（2000/2/22公開）出願人：石川島播磨重工業株式会社JP-A-2000-53111 "Container sterilization method and apparatus" (published on February 22, 2000) Applicant: Ishikawajima-Harima Heavy Industries, Ltd.
　特許文献1～３に開示のランプは、発光管の一部を容器に挿入している。しかし、これら特許文献には、発光管の容器挿入部分に発生する問題点及びこれを解決するためのガラス強度の規制に関する記載は存在しない。 ラ ン プ The lamps disclosed in Patent Documents 1 to 3 have a part of an arc tube inserted into a container. However, in these patent documents, there is no description regarding the problem that occurs in the container insertion portion of the arc tube and the regulation of the glass strength for solving the problem.
　発光管の容器内挿入部をＵ字形状にした発光管を試作したところ、下端の折り曲げ部のＵ字最下部内側の発光管内面に失透（ガラスが結晶化して脆くなる現象）が発生し、更に点灯時間が経過すると穴が開きリークする現象が発生した。即ち、従来の直管型のキセノンフラッシュランプに比較して、ランプは短寿命であった。Ｕ字形状の屈曲部の内側の機械的強度が不足し、点灯時の温度上昇によりダメージを受けているものと考えられる。 When an arc tube with a U-shaped insertion part in the container of the arc tube was prototyped, devitrification (a phenomenon in which glass was crystallized and became brittle) occurred on the inner surface of the arc tube at the lowermost inside of the U-shaped lower bent portion. When the lighting time further elapses, a hole opens and leaks. That is, the lamp has a shorter life than the conventional straight-tube xenon flash lamp. It is considered that the mechanical strength inside the U-shaped bent portion is insufficient, and that the U-shaped bent portion is damaged by a rise in temperature during lighting.
　そこで、本発明は、Ｕ字形状の容器内挿入部を持ち、従来の直管型ランプと同等のランプ寿命を有するキセノンフラッシュランプを提供することを目的とする。 Accordingly, an object of the present invention is to provide a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
　上記目的に鑑みて、本発明に係るキセノンフラッシュランプは、円筒状のガラス管から成る発光管を備えたキセノンフラッシュランプであって、
　前記発光管の一部は、部分的に容器開口部に挿入可能なＵ字形状に屈曲されており、
　Ｕ字形状の屈曲部の内側肉厚t1[mm]が、0.8≦t1≦2.5の範囲内であり、
　Ｕ字形状のストレート部Ｕｓの肉厚t2[mm]が、0.4≦t2≦2.0の範囲内である。 In view of the above object, a xenon flash lamp according to the present invention is a xenon flash lamp including an arc tube formed of a cylindrical glass tube,
Part of the arc tube is bent into a U-shape that can be partially inserted into the container opening,
The inner thickness t1 [mm] of the U-shaped bent portion is in the range of 0.8 ≦ t1 ≦ 2.5,
The thickness t2 [mm] of the U-shaped straight portion Us is in the range of 0.4 ≦ t2 ≦ 2.0.
　更に、上記キセノンフラッシュランプでは、Ｕ字形状の屈曲部の内側肉厚t1[mm]及びストレート部Ｕｓの肉厚t2[mm]が、0.8≦t1,t2≦2.0の範囲内であってよい。 In the xenon flash lamp, the inner thickness t1 [mm] of the U-shaped bent portion and the thickness t2 [mm] of the straight portion Us may be in the range of 0.8 ≦ t1, t2 ≦ 2.0.
　更に、上記キセノンフラッシュランプでは、前記発光管は、Ｔ字形状に屈曲されていてもよい。 In the xenon flash lamp, the arc tube may be bent in a T shape.
　更に、上記キセノンフラッシュランプでは、前記発光管は、Ｙ字形状又はカタカナの「ト」字形状に屈曲されていてもよい。 In the xenon flash lamp, the arc tube may be bent in a Y-shape or a katakana "g" shape.
　更に、上記キセノンフラッシュランプでは、前記容器開口部から前記容器内部へ挿入した屈曲部の長さは、前記容器の深さに応じて決定されていてもよい。
　更に、上記キセノンフラッシュランプでは、トリガー線が前記発光管の外周面に沿って存在していてもよい。
　更に、上記キセノンフラッシュランプでは、前記発光管の中央部がＵ字形状に形成されていてもよい。
　更に、上記キセノンフラッシュランプでは、前記発光管の左端部分、中央部、及び右端部分は、同じ外径の放電空間を形成するように接続され、両端部は封止され、一方の端部には陽極電極が配置され、他方の端部には陰極電極が配置されていてもよい。
　更に、上記キセノンフラッシュランプでは、中央部のＵ字形状部分が、前記容器の開口部から内部に深く挿入され、該Ｕ字形状部分は、テフロン（登録商標）膜で被覆された石英ジャケットで覆われていてもよい。 Further, in the xenon flash lamp, the length of the bent portion inserted into the container from the container opening may be determined according to the depth of the container.
Further, in the xenon flash lamp, the trigger line may be present along the outer peripheral surface of the arc tube.
Further, in the xenon flash lamp, a central portion of the arc tube may be formed in a U-shape.
Further, in the xenon flash lamp, the left end portion, the center portion, and the right end portion of the arc tube are connected so as to form a discharge space having the same outer diameter, both end portions are sealed, and one end portion is sealed. An anode electrode may be arranged, and a cathode electrode may be arranged at the other end.
Further, in the xenon flash lamp, the U-shaped portion at the center is inserted deeply into the inside of the container through the opening, and the U-shaped portion is covered with a quartz jacket covered with a Teflon (registered trademark) film. It may be.
　本発明によれば、Ｕ字形状の容器内挿入部を持ち、従来の直管型ランプと同等のランプ寿命を有するキセノンフラッシュランプを提供することができる。 According to the present invention, it is possible to provide a xenon flash lamp having a U-shaped container insertion portion and having a lamp life equivalent to that of a conventional straight tube lamp.
図１は、従来のキセノンフラッシュランプを説明する図である。FIG. 1 is a diagram illustrating a conventional xenon flash lamp. 図２は、本実施例に係るキセノンフラッシュランプを説明する図である。FIG. 2 is a diagram illustrating a xenon flash lamp according to the present embodiment. 図３は、殺菌処理の対象である容器の一例を示す図である。FIG. 3 is a diagram illustrating an example of a container to be sterilized. 図４は、本実施例に係るキセノンフラッシュランプを使用して、容器の内面を殺菌処理している状況を説明する図である。FIG. 4 is a diagram illustrating a state in which the inner surface of the container is being sterilized using the xenon flash lamp according to the present embodiment. 図５は、発光管のＵ字形状の屈曲部に発生した失透及びリークの穴を撮影した写真を模写した図である。図５（Ａ）は、Ｘ線写真を模写した図、図５（Ｂ）は、点灯後のランプ外観写真を模写した図、図５（Ｃ）は、失透及びリークの穴の写真を模写した図である。FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube. FIG. 5 (A) is a view mimicking an X-ray photograph, FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting, and FIG. FIG. 図６は、本実施例に係るキセノンフラッシュランプの点灯回路を説明する図である。FIG. 6 is a diagram illustrating a lighting circuit of the xenon flash lamp according to the present embodiment. 図７（Ａ），（Ｂ）は、本実施例に係るキセノンフラッシュランプの変形例を示す模式図である。FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according to the present embodiment.
　以下、本発明に係る容器殺菌用のキセノンフラッシュランプの実施形態に関し、添付の図面を参照しながら詳細に説明する。図中、同じ要素に対しては同じ参照符号を付して、重複する説明を省略する。 Hereinafter, an embodiment of a xenon flash lamp for sterilizing containers according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same elements are denoted by the same reference numerals, and redundant description will be omitted.
　本実施例に係るキセノンフラッシュランプの特徴は、従来のキセノンフラッシュランプと比較して、ランプの形状にある。従って、本実施例に係るキセノンフラッシュランプの理解を容易に出来るように、最初に従来のキセノンフラッシュランプに関して簡単に説明する。 特 徴 A feature of the xenon flash lamp according to the present embodiment lies in the shape of the lamp as compared with the conventional xenon flash lamp. Therefore, in order to facilitate understanding of the xenon flash lamp according to the present embodiment, a brief description will first be given of a conventional xenon flash lamp.
　［従来のキセノンフラッシュランプ］
　図１は、従来のキセノンフラッシュランプを説明する図である。従来のキセノンフラッシュランプ１１０は、希ガスのキセノンを封入した発光管１０２の両端に、陽極電極１０４ａと陰極電極１０４ｂとが対向して配置された構造となっている。発光管１０２は、紫外線透過率の高い石英ガラスから成り、両端が封止された一定の太さの直線状の円筒形に成形されている。 [Conventional Xenon flash lamp]
FIG. 1 is a diagram illustrating a conventional xenon flash lamp. The conventional xenon flash lamp 110 has a structure in which an anode electrode 104a and a cathode electrode 104b are arranged at both ends of an arc tube 102 in which xenon of a rare gas is sealed. The arc tube 102 is made of quartz glass having a high ultraviolet transmittance, and is formed into a straight cylindrical shape having a fixed thickness with both ends sealed.
　発光管１０２の外周面に沿って、トリガー線（「始動用補助電極」ともいう。）１０８が配置されている。トリガー線１０８は、各々が発光管１０２の外周面に密着しながら発光管を取り囲む複数個のリング部ワイヤ１０８－１と、発光管の軸線に沿って延在して複数個のリング部ワイヤ１０８－１を連結する連結部ワイヤ１０８－２とから成る。 ト リ ガ ー A trigger line (also referred to as “starting auxiliary electrode”) 108 is arranged along the outer peripheral surface of the arc tube 102. The trigger wire 108 includes a plurality of ring wires 108-1 each surrounding the arc tube while being in close contact with the outer peripheral surface of the arc tube 102, and a plurality of ring wires 108 extending along the axis of the arc tube. -1 for connecting to the connecting wire 108-2.
　陽極電極１０４ａは、電極リード棒１０４ａ－１の先端部（発光管側）を円柱状に成形加工した陽極大径部１０４ａ－２を備えるタングステンロッドによって形成されている。 The anode electrode 104a is formed of a tungsten rod having an anode large-diameter portion 104a-2 formed by processing the tip (the arc tube side) of the electrode lead rod 104a-1 into a cylindrical shape.
　陰極側電極１０４ｂは、電極リード棒１０４ｂ－１の先端部（発光管側）を円柱状に成形加工して陰極大径部１０４ｂ－２とし、この陰極大径部の端部上面に電子放出性物質から成る円柱状の焼結体（「エミッタ部」ともいう。）１０４ｂ－３が固着されたタングステンロッドによって形成されている。エミッタ部１０４ｂ－３の先端周囲にリング部ワイヤ１０８－１が位置決めされている。 The cathode-side electrode 104b is formed into a columnar shape at the tip (the arc tube side) of the electrode lead rod 104b-1 to form a cathode large-diameter portion 104b-2. A columnar sintered body (also referred to as an “emitter”) 104b-3 made of a substance is formed by a tungsten rod to which is fixed. The ring wire 108-1 is positioned around the distal end of the emitter 104b-3.
　電極リード棒１０４ａ－１，１０４ｂ－１の発光管と反対側は、リードワイヤ１０３ａ，１０３ｂに夫々接続されている。 The opposite sides of the electrode lead bars 104a-1 and 104b-1 from the arc tube are connected to lead wires 103a and 103b, respectively.
　［本実施例に係るキセノンフラッシュランプ］
　（ランプ形状）
　図２は、本実施例に係るキセノンフラッシュランプ１０ａを説明する図である。なお、図を簡略化して明瞭なものとするため、トリガー線は図示していないが、実際は図１と同様にトリガー線が発光管２の外周面に沿って存在している。 [Xenon flash lamp according to the present embodiment]
(Lamp shape)
FIG. 2 is a diagram illustrating the xenon flash lamp 10a according to the present embodiment. In addition, in order to simplify the drawing and to make it clear, a trigger line is not shown, but actually the trigger line exists along the outer peripheral surface of the arc tube 2 as in FIG.
　図１に示す従来のキセノンフラッシュランプ１１０との相違点を中心に説明する。従来のキセノンフラッシュランプ１１０と比較すると、発光管２の両端に、陽極電極４ａと陰極電極４ｂとが対向して配置されている点は共通するが、発光管２の中央部２ｂがＵ字形状に形成されている点で相違する。このＵ字形状部分２ｂ－１が、容器の開口部から内部に挿入される部分である。 The following description focuses on differences from the conventional xenon flash lamp 110 shown in FIG. Compared to the conventional xenon flash lamp 110, the anode electrode 4a and the cathode electrode 4b are arranged opposite to each other at both ends of the arc tube 2, but the central portion 2b of the arc tube 2 is U-shaped. In that it is formed in The U-shaped portion 2b-1 is a portion to be inserted into the container from the opening.
　発光管２の左端部分２ａ，中央部２ｂ、及び右端部分２ｃは、同じ外径の放電空間を形成するよう接続され、両端部は封止されている。従来のキセノンフラッシュランプ１１０と同様に、発光管２の左端部分２ａには、陽極大径部４ａ－２及び電極リード棒４ａ－１が配置され、反対側の右端部分２ｃには、エミッタ部４ｂ－３，陰極大径部４ｂ－２及び電極リード棒４ｂ－１が配置されている。 The left end portion 2a, the center portion 2b, and the right end portion 2c of the arc tube 2 are connected to form a discharge space having the same outer diameter, and both ends are sealed. Similarly to the conventional xenon flash lamp 110, an anode large-diameter portion 4a-2 and an electrode lead rod 4a-1 are arranged at a left end portion 2a of the arc tube 2, and an emitter portion 4b is arranged at an opposite right end portion 2c. -3, a cathode large diameter portion 4b-2 and an electrode lead rod 4b-1 are arranged.
　本発明者等の試作したこのＵ字形状発光管の仕様は次の通りである。但し、これに限定されない。
　　　発光管：材質はオゾンレス石英管、
　　　　　　　ｄ＝φ10、肉厚ｔ＝1.0ｍｍ
　　　ガス圧：Ｘｅガス500 torr
　　　電極： φ7.5 The specifications of this U-shaped arc tube prototyped by the present inventors are as follows. However, it is not limited to this.
Arc tube: Ozone-less quartz tube,
d = φ10, wall thickness t = 1.0mm
Gas pressure: Xe gas 500 torr
Electrode: φ7.5
　（ランプの使用態様）
　図３は、殺菌処理の対象である容器の一例を示す図である。 (Usage of lamp)
FIG. 3 is a diagram illustrating an example of a container to be sterilized.
　図４は、本実施例に係るキセノンフラッシュランプ１０ａを使用して、容器１２の内面を殺菌処理している状況を説明する図である。キセノンフラッシュランプ１０ａは、中央部２ｂのＵ字形状部分２ｂ－１が、容器開口部１２ａから内部に深く挿入されている。中央部２ｂのＵ字形状部分２ｂ－１は、テフロン（登録商標）膜で被覆された石英ジャケット６で覆われている。石英ジャケット６は、ランプ破裂時や衝撃によるガラス割れ時に破片の飛散を防ぐために用いられる。 FIG. 4 is a view for explaining a situation in which the inner surface of the container 12 is sterilized using the xenon flash lamp 10a according to the present embodiment. In the xenon flash lamp 10a, the U-shaped portion 2b-1 of the central portion 2b is inserted deep into the inside from the container opening 12a. The U-shaped portion 2b-1 of the central portion 2b is covered with a quartz jacket 6 covered with a Teflon (registered trademark) film. The quartz jacket 6 is used to prevent fragments from scattering at the time of lamp rupture or glass breakage due to impact.
　このキセノンフラッシュランプ１０ａの第１の特徴は、中央部２ｂのＵ字形状部分２ｂ－１が、容器１２の開口部１２ａから内部に挿入されている点にある。容器１２の深さに合わせて、ランプ１０ａのＵ字形状部分２ｂ－１の長さを決めることにより、容器の内面全体を直接光照射して殺菌処理可能にしている。 The first feature of the xenon flash lamp 10a is that the U-shaped portion 2b-1 of the central portion 2b is inserted into the container 12 from the opening 12a. By determining the length of the U-shaped portion 2b-1 of the lamp 10a in accordance with the depth of the container 12, the entire inner surface of the container can be directly irradiated with light to enable sterilization.
　一方、陽極電極４ａ（陽極大径部４ａ，電極リード棒４ａ－１）が封入された左端部分２ａ及び陰極電極４ｂ（エミッタ４ｂ－３，陰極大径部４ａ，電極リード棒４ａ－１）が封入された右端部分２ｃは、容器１２の外部に配置されている。 On the other hand, the left end portion 2a in which the anode electrode 4a (anode large diameter portion 4a, electrode lead rod 4a-1) is sealed and the cathode electrode 4b (emitter 4b-3, cathode large diameter portion 4a, electrode lead rod 4a-1) are formed. The enclosed right end portion 2c is arranged outside the container 12.
　本発明者等の試作したこのＵ字形状発光管の仕様は次の通りである。但し、これに限定されない。
　　　容器の開口部：φ40　長さ80ｍｍ
　　　発光管：材質は一般石英管、
　　　　　　外径ｄ＝φ10、肉厚ｔ＝1.0ｍｍ
　　　　　　ガス圧：Ｘｅガス500 torr
　　　電極：φ７.5
　　　石英ジャケット：外径φ30ｍｍ
　　　　　作業条件：ランプ入力エネルギー　600Ｊ
　　　　　　　　　　パルス点灯間隔　　　　3ショット／秒 The specifications of this U-shaped arc tube prototyped by the present inventors are as follows. However, it is not limited to this.
Container opening: φ40, length 80mm
Arc tube: The material is a general quartz tube,
Outer diameter d = φ10, wall thickness t = 1.0mm
Gas pressure: Xe gas 500 torr
Electrode: φ7.5
Quartz jacket: outer diameter φ30mm
Working conditions: Lamp input energy 600J
Pulse lighting interval 3 shots / sec
　（発光管の機械的強度）
　当初、中央部をＵ字形状にした発光管を試作し点灯したところ、Ｕ字最下部内側の発光管内面に失透が発生し、更に点灯時間が経過すると穴が開きリークする現象が発生した。図５は、発光管のＵ字形状の屈曲部に発生した失透及びリークの穴を撮影した写真を模写した図である。図５（Ａ）は、Ｘ線写真を模写した図、図５（Ｂ）は、点灯後のランプ外観写真を模写した図、図５（Ｃ）は、失透及びリークの穴の写真を模写した図である。 (Mechanical strength of arc tube)
Initially, when an arc tube with a U-shaped center was prototyped and turned on, devitrification occurred on the inner surface of the arc tube at the bottom inside of the U shape, and after the lighting time passed, a hole opened and a leak occurred. . FIG. 5 is a view simulating a photograph of a devitrification and a leak hole generated at a U-shaped bent portion of the arc tube. FIG. 5 (A) is a view mimicking an X-ray photograph, FIG. 5 (B) is a view mimicking a photograph of a lamp appearance after lighting, and FIG. 5 (C) is a view mimicking a photograph of a devitrification and leak hole. FIG.
　本発明者等は、失透及びリークの穴の発生箇所を調べたところ、Ｕ字形状の屈曲部に発生することが判明した。この部分のガラス強度が、比較的弱いと思われる。 The present inventors have investigated the location of the occurrence of devitrification and leak holes, and found that they occur at a U-shaped bent portion. The glass strength in this part seems to be relatively weak.
　そこで、ガラス強度を確保するため、Ｕ字形状部２ｂ－１のガラス肉厚を管理することとした。幾つかのガラス肉厚の異なる試作品を作成し、屈曲部Ｕｂの内側肉厚ｔ２及びストレート部Ｕｓの肉厚ｔ２の最適範囲及びの最適範囲を求めた。表１にその実験結果を示す。実験に使用した発光管の外径は、Ｄ＝10.0ｍｍである。 Therefore, in order to secure the glass strength, the glass thickness of the U-shaped portion 2b-1 was controlled. Several prototypes having different glass thicknesses were prepared, and the optimum range of the inner thickness t2 of the bent portion Ub and the thickness t2 of the straight portion Us were determined. Table 1 shows the experimental results. The outer diameter of the arc tube used in the experiment is D = 10.0 mm.
Figure JPOXMLDOC01-appb-T000001
  
Figure JPOXMLDOC01-appb-T000001
  
　表１に示すように、屈曲部Ｕｂの内側肉厚t1[mm]が、0.8≦t1≦2.5の範囲では失透，リークは発生しなかった。しかし、この範囲よりガラスが薄いt1＜0.6では失透，リークが発生した。一方、ストレート部Ｕｓの肉厚t2[mm]が、0.4≦t2≦2.0の範囲では、十分な光量が確保できている。しかし、この範囲よりガラスが厚い2.5＜t2では暗くなり、光量不足となる。 よ う As shown in Table 1, no devitrification or leakage occurred when the inner thickness t1 [mm] of the bent portion Ub was in the range of 0.8 ≦ t1 ≦ 2.5. However, when the glass thickness was thinner than t1 <0.6, devitrification and leakage occurred. On the other hand, when the thickness t2 [mm] of the straight portion Us is in the range of 0.4 ≦ t2 ≦ 2.0, a sufficient amount of light can be secured. However, if the glass is thicker than this range, that is, 2.5 <t2, it becomes dark and the light quantity becomes insufficient.
　従って、t1,t2を個別に管理しない場合、総合評価として、失透，リークが発生せず、十分な光量が確保出来る範囲は、0.8≦t1,t2≦2.0であった。 Therefore, when t1 and t2 were not individually managed, as a comprehensive evaluation, the range in which devitrification and leak did not occur and a sufficient amount of light was secured was 0.8 ≦ t1, t2 ≦ 2.0.
　（キセノンフラッシュランプの点灯回路）
　図５は、図２に示すキセノンフラッシュランプの点灯回路３０の一例を説明する図である。ここで、符号１０ａはランプであり、符号８はトリガー線である。点灯回路３０は、商用交流電源２２と、これを昇圧し整流する充電用高圧電源回路２４と、この出力を蓄電する充放電用コンデンサ２６と、波形調整用コイル２８とを備え、ランプ１０にパルス電圧を給電している。更に、始動用外部トリガー発生回路３２と、トリガーパルスを昇圧してトリガー線８に送るパルス昇圧トランス３４とを備えている。 (Lighting circuit of xenon flash lamp)
FIG. 5 is a diagram illustrating an example of the lighting circuit 30 of the xenon flash lamp shown in FIG. Here, reference numeral 10a is a lamp, and reference numeral 8 is a trigger line. The lighting circuit 30 includes a commercial AC power supply 22, a charging high-voltage power supply circuit 24 for boosting and rectifying the commercial AC power supply 22, a charging / discharging capacitor 26 for storing the output, and a waveform adjusting coil 28. Power is being supplied. Further, an external trigger generating circuit 32 for starting and a pulse boosting transformer 34 which boosts a trigger pulse and sends it to the trigger line 8 are provided.
　（本実施形態の利点・特徴）
　本実施形態に係るキセノンフラッシュランプは、次のような利点・特徴を有する。
　(1) キセノンフラッシュランプの発光管中央部２ｂをＵ字形状部分２ｂ－１に形成し、屈曲部の内側肉厚t1[mm]を、0.8≦t1≦2.5の範囲内であり、且つＵ字形状のストレート部Ｕｓの肉厚t2[mm]を、0.4≦t2≦2.0の範囲内にすることで、失透，リークが発生せず、十分な光量が確保出来る。
　(2) キセノンフラッシュランプの発光管のＵ字形状部２ｂ－１の屈曲部Ｕｂの内側肉厚t1[mm]とストレート部Ｕｓの肉厚t2[mm]に関し、t1,t2を個別に管理しない場合には、0.8≦t1,t2≦2.0の範囲内にすることで、失透，リークが発生せず、十分な光量が確保出来る。
　(3)容器開口部から内部へ挿入可能な形状に屈曲された部分の長さは、容器の深さに応じて決定することができ、容器の内面周面及び底部まで紫外線を照射することが出来る。 (Advantages and features of this embodiment)
The xenon flash lamp according to the present embodiment has the following advantages and features.
(1) The central portion 2b of the arc tube of the xenon flash lamp is formed in the U-shaped portion 2b-1, and the inner thickness t1 [mm] of the bent portion is in the range of 0.8 ≦ t1 ≦ 2.5 and the U-shape. By setting the thickness t2 [mm] of the straight portion Us within the range of 0.4 ≦ t2 ≦ 2.0, a sufficient amount of light can be ensured without devitrification and leakage.
(2) Regarding the inner thickness t1 [mm] of the bent portion Ub of the U-shaped portion 2b-1 of the arc tube of the xenon flash lamp and the thickness t2 [mm] of the straight portion Us, t1 and t2 are not individually controlled. In this case, by setting the range of 0.8 ≦ t1 and t2 ≦ 2.0, a sufficient amount of light can be ensured without devitrification or leakage.
(3) The length of the portion bent into a shape that can be inserted into the inside from the container opening can be determined according to the depth of the container, and the inner peripheral surface and the bottom of the container can be irradiated with ultraviolet rays. I can do it.
　［変形例等］
　図２及び図４に示すキセノンフラッシュランプは、全体的に見ると、発光管がＴ字形状となっている。この形状は、種々の変形例が考えられる。図７（Ａ），（Ｂ）は、本実施例に係るキセノンフラッシュランプの変形例を示す模式図である。例えば、図６（Ａ）に示すＹ字形状、図７（Ｂ）に示す両端部分２ａ，２ｃの一方が発光管中央部２ｂに水平方向に延び、他方が垂直方向に延びるカタカナ「ト」の字形状、及びこれらの組み合わせ（一方が斜め方向、他方が水平又は垂直方向）等が考えられる。 [Modifications, etc.]
The xenon flash lamp shown in FIGS. 2 and 4 has a T-shaped arc tube as a whole. Various modifications can be considered for this shape. FIGS. 7A and 7B are schematic diagrams showing a modification of the xenon flash lamp according to the present embodiment. For example, in a Y-shape shown in FIG. 6 (A), a katakana "g" in which one of both end portions 2a and 2c shown in FIG. 7 (B) extends horizontally to the arc tube center 2b and the other extends vertically. A character shape, a combination thereof (one is an oblique direction, the other is a horizontal or vertical direction), and the like are conceivable.
　［結び］
　以上、本発明に係る容器殺菌用のキセノンフラッシュランプの実施形態に関し説明したが、これらは例示であって、本発明の範囲を何等限定するものではない。本実施形態に対して当業者が容易に成し得る追加、削除、変更、改良等は、本発明の範囲内である。本発明の技術的範囲は、添付の特許請求の範囲の記載によって定められる。 [Knot]
As described above, the embodiment of the xenon flash lamp for sterilizing the container according to the present invention has been described. However, these are mere examples, and do not limit the scope of the present invention. Additions, deletions, changes, improvements, and the like that can be easily made by those skilled in the art to the present embodiment are within the scope of the present invention. The technical scope of the present invention is defined by the appended claims.
　２：発光管、　２ａ：左端部分、　２ｂ：発光管中央部，中央部、　２ｂ－１：Ｕ字形状部分、　 ２ｃ：右端部分、　４ａ：陽極電極、　４ａ－１：電極リード棒、　４ａ－２：陽極大径部、　４ｂｂ：陰極電極、　４ｂ－１：電極リード棒、　４ｂ－２：　陰極大径部、　４ｂ－３：エミッタ、　６：石英ジャケット、１０ａ，１０ｂ，１０ｃ：キセノンフラッシュランプ、　１２：容器、　１２ａ：容器開口部，開口部、　２２：商用交流電源、　２４：充電用高圧電源回路、　２６：充放電用コンデンサ、　２８：波形調整用コイル、　３０：点灯回路、　３２：始動用外部トリガー発生回路、　３４：パルス昇圧トランス、　１０２：発光管、　１０３ａ，１０３ｂ：リードワイヤ、　１０４ａ：陽極電極、　１０４ａ－１：電極リード棒、　１０４ａ：陽極大径部、　１０４ｂ：陰極電極、　１０４ｂ－１：電極リード棒、　１０４ｂ－２：陰極大径部、　１０４ｂ－３：エミッタ部、　１０８：トリガー線、　１０８－１：リング部ワイヤ、　１０８－２：連結部ワイヤ、　１１０：キセノンフラッシュランプ、
　ｔ１：屈曲部の内側肉厚、　ｔ２：ストレート部の肉厚、　Ｕｂ：屈曲部、　Ｕｓ：ストレート部、
  2: arc tube, 2a: left end portion, 2b: center portion and center portion of arc tube, 2b-1: U-shaped portion, 2c: right end portion, 4a: anode electrode, 4a-1: electrode lead rod, 4a-2 : Large diameter part of anode, 4bb: Cathode electrode, 4b-1: Electrode lead rod, 4b-2: Large diameter part of cathode, 4b-3: Emitter, 6: Quartz jacket, 10a, 10b, 10c: Xenon flash lamp, 12 : Container, 12a: container opening, opening, 22: commercial AC power supply, 24: high voltage power supply circuit for charging, 26: capacitor for charging and discharging, 28: coil for adjusting waveform, 30: lighting circuit, 32: external for starting Trigger generation circuit, 34: pulse booster transformer, 102: arc tube, 103a, 103b: lead wire, 104a: anode electrode, 104a-1: electrode lead rod, 104a: anode large diameter portion, 1 4b: Cathode electrode, 104b-1: Electrode lead rod, 104b-2: Cathode large diameter part, 104b-3: Emitter part, 108: Trigger wire, 108-1: Ring part wire, 108-2: Connection part wire, 110: Xenon flash lamp,
t1: inner thickness of the bent portion, t2: thickness of the straight portion, Ub: bent portion, Us: straight portion,

Claims (5)

  1. 　円筒状のガラス管から成る発光管を備えたキセノンフラッシュランプであって、
    　前記発光管の一部は、容器開口部に挿入可能なＵ字形状に屈曲されており、
    　Ｕ字形状の屈曲部の内側肉厚t1[mm]が、0.8≦t1≦2.5の範囲内であり、
    　Ｕ字形状のストレート部Ｕｓの肉厚t2[mm]が、0.4≦t2≦2.0の範囲内である、キセノンフラッシュランプ。     A xenon flash lamp having an arc tube composed of a cylindrical glass tube,
    Part of the arc tube is bent into a U-shape that can be inserted into the container opening,
    The inner thickness t1 [mm] of the U-shaped bent portion is in the range of 0.8 ≦ t1 ≦ 2.5,
    A xenon flash lamp in which the thickness t2 [mm] of the U-shaped straight portion Us is in the range of 0.4 ≦ t2 ≦ 2.0.
  2. 　請求項１に記載のキセノンフラッシュランプにおいて、
    　Ｕ字形状の屈曲部の内側肉厚t1[mm]及びストレート部Ｕｓの肉厚t2[mm]が、0.8≦t1,t2≦2.0の範囲内である、キセノンフラッシュランプ。     The xenon flash lamp according to claim 1,
    A xenon flash lamp, wherein the inner thickness t1 [mm] of the U-shaped bent portion and the thickness t2 [mm] of the straight portion Us are in the range of 0.8 ≦ t1, t2 ≦ 2.0.
  3. 　請求項１に記載のキセノンフラッシュランプにおいて、
    　前記発光管は、Ｔ字形状に屈曲されている、キセノンフラッシュランプ。     The xenon flash lamp according to claim 1,
    A xenon flash lamp, wherein the arc tube is bent in a T shape.
  4. 　請求項１に記載のキセノンフラッシュランプにおいて、
    　前記発光管は、Ｙ字形状又はカタカナの「ト」字形状に屈曲されている、キセノンフラッシュランプ。     The xenon flash lamp according to claim 1,
    A xenon flash lamp, wherein the arc tube is bent in a Y shape or a katakana "g" shape.
  5. 　請求項１～４のいずれか一項に記載の容器殺菌用のキセノンフラッシュランプにおいて、
    　前記容器開口部から前記容器内部へ挿入した屈曲部の長さは、前記容器の深さに応じて決定されている、キセノンフラッシュランプ。
          The xenon flash lamp for sterilizing containers according to any one of claims 1 to 4,
    The length of the bent portion inserted into the container from the container opening is determined in accordance with the depth of the container.
PCT/JP2019/024693 2018-06-26 2019-06-21 Xenon flash lamp for sterilizing container WO2020004255A1 (en)

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