JPH01136660A - Sterilizing lamp - Google Patents
Sterilizing lampInfo
- Publication number
- JPH01136660A JPH01136660A JP29407287A JP29407287A JPH01136660A JP H01136660 A JPH01136660 A JP H01136660A JP 29407287 A JP29407287 A JP 29407287A JP 29407287 A JP29407287 A JP 29407287A JP H01136660 A JPH01136660 A JP H01136660A
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- lamp
- germicidal lamp
- glass tube
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001954 sterilising effect Effects 0.000 title abstract description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 12
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 11
- 230000002070 germicidal effect Effects 0.000 claims description 28
- 239000007789 gas Substances 0.000 abstract description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 8
- 230000001877 deodorizing effect Effects 0.000 abstract description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052786 argon Inorganic materials 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000002834 transmittance Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 abstract 1
- 230000003389 potentiating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910006254 ZrP2O7 Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は殺菌灯に係り、特に寿命特性および低温点灯特
性の改善に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to germicidal lamps, and particularly to improvements in life characteristics and low temperature lighting characteristics.
従来、殺菌灯については照明学会編の照明ハンドブック
（昭和５３年５月、オーム社）の７０９〜７１０頁に記
載されている。Conventionally, germicidal lamps are described on pages 709 to 710 of the Illumination Handbook (May 1978, Ohmsha) edited by the Illuminating Engineering Society of Japan.
上記従来の殺菌灯は、寿命が３０００〜５０００時間と
短かい。この原因は従来の殺菌灯は熱陰極を使用してい
ることによる。すなわち、電極に担持されている熱電子
放射物質が消耗してしまうと寿命になる。また、通常の
蛍光灯と同等の放電を利用しているので低温度において
は出力が著しく低下するという問題があった。また従来
の殺菌灯は殺菌作用は十分であったが、脱臭効果はほと
んどない。The above-mentioned conventional germicidal lamps have a short lifespan of 3,000 to 5,000 hours. This is due to the fact that conventional germicidal lamps use hot cathodes. That is, when the thermionic emitting material supported on the electrode is consumed, the life of the electrode is reached. In addition, since the lamp uses the same discharge as a normal fluorescent lamp, there is a problem in that the output decreases significantly at low temperatures. Furthermore, although conventional germicidal lamps have sufficient sterilizing effects, they have almost no deodorizing effect.
したがって、本発明の目的は、寿命２０ 、０００時間
以上の長寿命であり、さらに低温度でも紫外線出力が低
下せず、さらに脱臭効果も合わせもつ殺菌灯を提供する
ことである。Therefore, an object of the present invention is to provide a germicidal lamp that has a long life of 20,000 hours or more, does not reduce its ultraviolet output even at low temperatures, and also has a deodorizing effect.
長寿命化の目的は、電極を冷陰極方式にすることによっ
て達成され、さらに、この殺菌灯を正規グロー放電領域
で点灯することにより、よりいっそうの長寿命化が達成
できる。ここで、正規グロー放電の領域とは、電源電圧
を変化させてランプ電流を変えた時、ランプ電圧が定の
値を示す領域である。The purpose of extending the lifespan is achieved by using a cold cathode type electrode, and further extending the lifespan can be achieved by lighting the germicidal lamp in a normal glow discharge area. Here, the normal glow discharge region is a region in which the lamp voltage shows a constant value when the lamp current is changed by changing the power supply voltage.
放電用ガスとして希ガスと水銀の混合ガスを使用した殺
菌灯の低温における出力特性の改善は、殺菌灯を第二の
ガラス管で覆い、いわゆる二重管構造にすることによっ
て達成される。Improving the low-temperature output characteristics of germicidal lamps using a mixture of rare gas and mercury as the discharge gas can be achieved by covering the germicidal lamp with a second glass tube, creating a so-called double-tube structure.
、（３）
殺菌灯のガラス管として１８５〜２５４ｎｍの紫外線も
透過するものを使用することにより、脱臭効果をも有す
る殺菌灯を得ることができる。(3) By using a glass tube for the germicidal lamp that also transmits ultraviolet rays of 185 to 254 nm, it is possible to obtain a germicidal lamp that also has a deodorizing effect.
電極と冷陰極にすると、電極の大きさは実質的に自由に
なり、したがって長寿命の電極が可能になる。また、正
規グロー放電領域で点灯すると、陰極降下電圧が低下す
るので電極の損耗が得少し、さらに長寿命になる。The electrode and cold cathode allow substantial freedom in the size of the electrode, thus allowing for long-life electrodes. Furthermore, when the lamp is lit in the normal glow discharge region, the cathode fall voltage is reduced, which reduces the wear and tear of the electrodes, resulting in a longer life.
放電用ガストして希ガスと水銀の混合ガスを使用した殺
菌灯において、これを第二のガラス管内に封入した二重
管構造とすると、殺菌灯が保温されるため水銀の蒸気圧
が低下せず、したがって、低温度においても紫外線の出
力が低下しない。In a germicidal lamp that uses a mixture of rare gas and mercury as a discharge gas, if this is sealed in a second glass tube and has a double-tube structure, the germicidal lamp is kept warm and the vapor pressure of mercury is reduced. Therefore, the output of ultraviolet rays does not decrease even at low temperatures.
以下、本発明の実施例を、第１図から第３図によって説
明する。Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.
第１図は本発明の一実施例で、１は２５４ｎｍ付近の透
過率が良好である硬質ガラス管（コーニング社の９７４
１）で直径は１５＋ｎｍ、２，２′は鉄−ニッケル合金
製のホロー状をした冷陰極で、直径１０ｍｎ長さ２０＋
＋ｗｎである。放電用ガスとしてアルゴン１５Ｔｏｒｒ
と水銀を封入した。２０ｍＡの正規グロー放電領域で点
灯したところ、水銀原子の共鳴線２５４ｎｍが強く放射
されて殺菌効果は十分であり、かつ２００００時間以上
の長寿命が得られた。Figure 1 shows one embodiment of the present invention, and 1 is a hard glass tube (Corning's 974 tube with good transmittance around 254 nm).
1) has a diameter of 15+ nm, 2 and 2' are hollow cold cathodes made of iron-nickel alloy, and have a diameter of 10 mm and a length of 20+.
+wn. Argon 15 Torr as discharge gas
and mercury. When the lamp was turned on in the normal glow discharge region of 20 mA, the resonance line of mercury atoms at 254 nm was strongly emitted, the sterilization effect was sufficient, and a long life of over 20,000 hours was obtained.
第２図は本発明の別の実施例で、ガラス管１゜冷陰極２
，２′は第１図と同一で、放電用ガスとしてキセノンガ
スが１０ Ｔｏｒｒ封入され、管壁にはキセノン原子の
共鳴線１４７ｎｍを２００〜３００’ｎ ｍの殺菌線の
変換するための蛍光体（ＺｒＰ２Ｏ７，Ｋ Ｉ ： Ｔ
ｎＢａＺｒＳｉｓＯｅ、 ＬａＦｓ ： ＣＱ 。FIG. 2 shows another embodiment of the present invention, in which a glass tube 1° cold cathode 2
, 2' is the same as in Fig. 1, and xenon gas is sealed at 10 Torr as a discharge gas, and a phosphor is installed on the tube wall to convert the 147 nm resonance line of xenon atoms into a germicidal line of 200 to 300' nm. (ZrP2O7, K I: T
nBaZrSisOe, LaFs:CQ.
ＬａＦｓ ： Ｐ ｒ 、 Ｌｉ’Ｙ Ｆ４ ： Ｐｒ
ＨｆＰｚＯ７など）が塗布されている。この実施例の殺
菌灯は、周囲温度によって紫外線のの出力がほとんど変
化せず、かつ長寿命という特長を有する。LaFs: Pr, Li'YF4: Pr
HfPzO7, etc.) is applied. The germicidal lamp of this embodiment has the characteristics that the output of ultraviolet rays hardly changes depending on the ambient temperature and has a long life.
第３図−は本発明の他の実施例で、１は１８５ｎｍから
３００ｎｍの透過率が良好である石英ガ゛ラス管で、両
端に冷陰極２，２′と、放電用ガスとしてアルゴンと水
銀が封入されている。この殺菌灯は１と同じ特性を有す
る石英ガラス製の外管４の中に封入されており、外管４
は真空に排気されている。この実施例においては、水銀
の共鳴線２５４ｎｍに加えて１８５ｎｍの紫外光も外部
に放射される。１８５ｎｍは空気中の酸素をオゾンに変
換する。オゾンは強力な脱臭効果を有するので、殺菌と
脱臭の両方が実現できる。殺菌灯が真空に排気された外
管内にあるので、周囲温度が低い場合や、殺菌灯の周辺
を空気が流れるような状態、すなわち、冷凍庫や冷蔵庫
の内部のような状態においても、水銀の蒸気圧はあまり
“低下せず、紫外線の出力は低下しにくいという特長が
ある。Figure 3 shows another embodiment of the present invention, in which 1 is a quartz glass tube with good transmittance from 185 nm to 300 nm, with cold cathodes 2 and 2' at both ends, and argon and mercury as discharge gas. is included. This germicidal lamp is enclosed in an outer tube 4 made of quartz glass having the same characteristics as 1.
is evacuated to vacuum. In this embodiment, in addition to the mercury resonance line of 254 nm, ultraviolet light of 185 nm is also emitted to the outside. 185 nm converts oxygen in the air to ozone. Since ozone has a strong deodorizing effect, it can achieve both sterilization and deodorization. Because the germicidal lamp is housed in an evacuated outer tube, mercury vapor can be released even at low ambient temperatures or when air flows around the germicidal lamp, such as inside a freezer or refrigerator. It has the advantage that the pressure does not drop much and the output of ultraviolet rays does not drop easily.
本発明によれば、長寿命の殺菌灯が得られ、かつ低温度
において紫外線の出力が良好であり、さらにオゾンの生
成によって脱臭効果を有する殺菌灯が得られる。According to the present invention, it is possible to obtain a germicidal lamp that has a long life, has a good output of ultraviolet rays at low temperatures, and has a deodorizing effect due to the production of ozone.
第１図から第３図は本発明の実施例の縦断面図である。
■・・・ガラス管、２・・・冷陰極、３・・・蛍光体、
４・・外第 １ 図
第 ２ 囚1 to 3 are longitudinal cross-sectional views of embodiments of the present invention. ■...Glass tube, 2...Cold cathode, 3...phosphor,
4...Outside 1st figure 2nd prisoner
Claims (1)
するガラス管内に低圧ガスを封入した殺菌灯において、
電極として冷陰極を使用したことを特徴とする殺菌灯。 ２、上記ガラス管が１８５〜３００ｎｍの紫外線を透過
することを特徴とする特許請求の範囲第１項記載の殺菌
灯。 ３、少なくとも１９０ｎｍ以下の紫外線は透過せず２５
０〜３００ｎｍの紫外線を透過する第二のガラス管内に
該殺菌灯を封入し、二重管構造とマたことを特徴とする
特許請求の範囲第１項および第２項記載の殺菌灯。 ４、少なくとも１８５から３００ｎｍの紫外線を透過す
る第二のガラス管内に該殺菌灯を封入し、二重管構造と
したことを特徴とする特許請求の範囲第２項記載の殺菌
灯。 ５、正規グロー放電領域内で点灯することを特徴とする
特許請求の範囲第１項から第４項記載の殺菌灯。 ６、放電ガスとして希ガスと水銀ガスの混合ガスを使用
してなることを特徴とする特許請求の範囲第１乃至第５
項記載の殺菌灯。[Claims] 1. A germicidal lamp in which a low-pressure gas is sealed in a glass tube that transmits ultraviolet light with a wavelength of at least 200 to 300 nm,
A germicidal lamp characterized by using a cold cathode as an electrode. 2. The germicidal lamp according to claim 1, wherein the glass tube transmits ultraviolet rays of 185 to 300 nm. 3. At least ultraviolet light of 190 nm or less does not pass through25
The germicidal lamp according to claims 1 and 2, characterized in that the germicidal lamp is enclosed in a second glass tube that transmits ultraviolet rays of 0 to 300 nm, and has a double tube structure. 4. The germicidal lamp according to claim 2, characterized in that the germicidal lamp is enclosed in a second glass tube that transmits ultraviolet rays of at least 185 to 300 nm to form a double-tube structure. 5. The germicidal lamp according to claims 1 to 4, characterized in that it is lit within a regular glow discharge area. 6. Claims 1 to 5, characterized in that a mixed gas of rare gas and mercury gas is used as the discharge gas.
Germicidal lamp as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29407287A JPH01136660A (en) | 1987-11-24 | 1987-11-24 | Sterilizing lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29407287A JPH01136660A (en) | 1987-11-24 | 1987-11-24 | Sterilizing lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01136660A true JPH01136660A (en) | 1989-05-29 |
Family
ID=17802920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29407287A Pending JPH01136660A (en) | 1987-11-24 | 1987-11-24 | Sterilizing lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136660A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015548A (en) * | 1996-07-01 | 1998-01-20 | Janome Sewing Mach Co Ltd | Sterilizing apparatus of around-the-clock purifying and heat insulating apparatus |
| JPH1085732A (en) * | 1996-09-12 | 1998-04-07 | Janome Sewing Mach Co Ltd | Ultraviolet sterilization apparatus for flowing water |
| JP2011103250A (en) * | 2009-11-11 | 2011-05-26 | Stanley Electric Co Ltd | Double-tube type ultraviolet lamp |
| JP2012009372A (en) * | 2010-06-28 | 2012-01-12 | Stanley Electric Co Ltd | Ultraviolet discharge lamp and driving method of the same |
-
1987
- 1987-11-24 JP JP29407287A patent/JPH01136660A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015548A (en) * | 1996-07-01 | 1998-01-20 | Janome Sewing Mach Co Ltd | Sterilizing apparatus of around-the-clock purifying and heat insulating apparatus |
| JPH1085732A (en) * | 1996-09-12 | 1998-04-07 | Janome Sewing Mach Co Ltd | Ultraviolet sterilization apparatus for flowing water |
| JP2011103250A (en) * | 2009-11-11 | 2011-05-26 | Stanley Electric Co Ltd | Double-tube type ultraviolet lamp |
| JP2012009372A (en) * | 2010-06-28 | 2012-01-12 | Stanley Electric Co Ltd | Ultraviolet discharge lamp and driving method of the same |
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