JPS5834553A - Low pressure mercury vapor discharge lamp - Google Patents
Low pressure mercury vapor discharge lampInfo
- Publication number
- JPS5834553A JPS5834553A JP13213181A JP13213181A JPS5834553A JP S5834553 A JPS5834553 A JP S5834553A JP 13213181 A JP13213181 A JP 13213181A JP 13213181 A JP13213181 A JP 13213181A JP S5834553 A JPS5834553 A JP S5834553A
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- amalgam
- bismuth
- tin
- mercury vapor
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Landscapes
- Discharge Lamp (AREA)
Abstract
Description
【発明の詳細な説明】
本発ｌｊ！はアマルガムを封有する低圧水銀蒸気放電灯
に関する。[Detailed description of the invention] This invention lj! relates to a low-pressure mercury vapor discharge lamp containing an amalgam.
低圧水銀蒸気放電灯においては、放電灯の動作期間中水
銀の蒸気圧が約６ Ｘ １０−” ｍＨｇである場合に
、供給電気エネルギの紫外線への転換効率が最大となシ
、この値は約４０°Ｃの液体水銀と子嚢状態にある蒸気
圧である。In low-pressure mercury vapor discharge lamps, the efficiency of converting the supplied electrical energy into ultraviolet light is at its maximum when the vapor pressure of mercury is approximately 6 x 10-" mHg during the lamp's operation; this value is approximately This is the vapor pressure in the ascus state with liquid mercury at 40°C.
したがって、周囲温度が所定の値より高い場合には蒸気
圧が上昇し、転換効率が低下する。Therefore, if the ambient temperature is higher than a predetermined value, the vapor pressure will increase and the conversion efficiency will decrease.
高温時の水銀蒸気圧を６ Ｘ １０−” ｍｍ Ｈｇに
できるだけ近く維持するための既知方法にアマルガムを
使用する方法がある。たとえば、特公昭５４−３３２１
５号公報、特公昭５４−３８５８２号公報、文献Ａｍａ
１ｇａｍｓ ｆｏｒ ｆｌｕｏｒｅｓｃｅｎｔ ｌａｍ
ｐｓ （ｐｈｉｌｉｐｓ ｔｅｃｈ。A known method for maintaining the mercury vapor pressure at high temperatures as close as possible to 6 x 10-" mm Hg is the use of amalgams.
Publication No. 5, Japanese Patent Publication No. 54-38582, Literature Ama
1gams for fluorescent lam
ps (philips tech.
効Ｖ、井ｐ ８３〜８８．１９７８／７９．ぬ３）など
に記載がある。Effect V, Ip 83-88.1978/79. It is described in 3) etc.
本発明はビスマスおよび錫からなる基体合金に水銀を含
有させたアマルガムをパルプ内に封入したものである。In the present invention, an amalgam containing mercury in a base alloy of bismuth and tin is encapsulated in pulp.
しかして、アマルガム中の基体合金と水銀との比率は重
量比で０．８５ ： ０．１５ないし０．９９５ ：
０．００５の範囲内にあることが望ましく、比率がこの
範囲内にめれば水銀蒸気圧の値は広い温度範囲にわたっ
て６ Ｘ １０−” ｔｍ Ｈｇ近傍にあり、放電灯の
転換効率が最適となる。Therefore, the weight ratio of the base alloy to mercury in the amalgam is 0.85:0.15 to 0.995:
It is desirable that the ratio be within the range of 0.005, and if the ratio is within this range, the value of mercury vapor pressure will be around 6 x 10-" tm Hg over a wide temperature range, and the conversion efficiency of the discharge lamp will be optimal. Become.
つぎに基体合金中のビスマスと錫との比率は重量比で４
９ 二５１であることが好ましく、この理由は、合金が
この比率のとき別個の成分比の合金への分離がほとんど
起らないからである。Next, the ratio of bismuth to tin in the base alloy is 4 by weight.
9251 is preferred because when the alloy is in this ratio, there is little separation into alloys of distinct component ratios.
つぎに、純水銀とアマルガムとについて温度と水銀蒸気
圧との関係を調査した。この結果を図に示す。図は横軸
に周囲温度を℃の単位でとり、縦軸に水銀蒸気圧を■Ｈ
ｇの単位でとったもので、曲ｌｌ４Ａ）はビスマス３６
重量−・錫６４重量−からなる合金ＫＯ０１重量−の水
銀を含ませたアマルガム、曲ＩＩ＠はビスマス４９重量
嘔・錫５１重量嘔からなる合金に０．１重量−の水銀管
含ませたアマルガム、曲線ｑはビスマス６１重量−・錫
３９重量％からなる合金Ｋ Ｏ，１重量−の水銀を含ま
せたアマルガム、曲線（２）は純水銀の蒸気圧ｌ１ｍ１
ｍを示す。この図から明らかなとおシ、上述し九３種の
アマルガムはいずれも低温における水銀蒸気圧が純水銀
のそれに近く、ｌ＆亀における水銀蒸気圧が６ Ｘ １
０”−３１１１１Ｈｇ近くで平衡を保っていることが解
る。そして、基体合金の組成比が共融組成比から若干変
化しても問題なく、具体的にはビスマスと錫との割合い
が重量比で３６ ： ６４ないし６１ ： ３９の範囲
内にあれば上述した６ Ｘ １０−” ＩＩＩ Ｈｇ近
傍の蒸気圧を充分満足でき、ランプの高温特性を向上で
きる。Next, we investigated the relationship between temperature and mercury vapor pressure for pure mercury and amalgam. The results are shown in the figure. In the figure, the horizontal axis shows the ambient temperature in °C, and the vertical axis shows the mercury vapor pressure in ■H.
It is taken in units of g, and the curve ll4A) is bismuth 36
KO01 is an amalgam containing 0.1 weight of mercury in an alloy consisting of 49 weight of bismuth and 51 weight of tin. , curve q is an amalgam impregnated with mercury containing 61% by weight of bismuth and 39% by weight of tin, and curve (2) is the vapor pressure of pure mercury, l1m1.
Indicates m. It is clear from this figure that the mercury vapor pressure of all the 93 types of amalgams mentioned above at low temperatures is close to that of pure mercury, and the mercury vapor pressure at 1 & 1 is 6 x 1.
It can be seen that equilibrium is maintained near 0''-31111Hg.There is no problem even if the composition ratio of the base alloy changes slightly from the eutectic composition ratio, and specifically, the ratio of bismuth to tin and the weight ratio If the ratio is within the range of 36:64 to 61:39, the above-mentioned vapor pressure near 6 x 10-'' III Hg can be sufficiently satisfied, and the high-temperature characteristics of the lamp can be improved.
なお、本発明はけい光ランプや殺菌灯などの低圧水銀蒸
気放電灯に適用できる。Note that the present invention can be applied to low-pressure mercury vapor discharge lamps such as fluorescent lamps and germicidal lamps.
このように、本発明の低圧水銀蒸気放電灯はビスマスお
よび錫からなる基体合金に水銀を含有させたアマルガム
をバルブ内に封入したので、高温特性を向上できる利点
がある。As described above, the low-pressure mercury vapor discharge lamp of the present invention has an advantage in that high-temperature characteristics can be improved because the amalgam containing mercury in a base alloy made of bismuth and tin is sealed in the bulb.
図は本発明の低圧水銀蒸気放電灯に封入するアマルガム
中の基体合金の適正組成範囲を示すグラフである。
代理人 弁理士 井 上 −男The figure is a graph showing the appropriate composition range of the base alloy in the amalgam sealed in the low-pressure mercury vapor discharge lamp of the present invention. Agent Patent Attorney Inoue - Male
Claims (3)
含有させたアマルガムをバルブ内に封入したことｔ％黴
とする低圧水銀蒸気放電灯。(1) A low-pressure mercury vapor discharge lamp whose bulb is filled with amalgam containing mercury in a base alloy consisting of bismuth and tin.
０．８５ ： ０．１５ないし０．９９５ ： ０．０
０５の範囲内にあることを特徴とする特許請求の範囲＃
！１項記載の低圧水銀蒸気放電灯。(2) The weight ratio of the base alloy to mercury in the amalgam is 0.85:0.15 to 0.995:0.0.
Claim # characterized in that it lies within the scope of 05
! The low-pressure mercury vapor discharge lamp described in item 1.
６４ないし６１ ： ３９の範囲内にあることを特徴
とする特許請求の範囲第１項記載の低圧水銀蒸気放電灯
。(3) The weight ratio of bismuth and tin in the base alloy is 36:
64 to 61:39. The low-pressure mercury vapor discharge lamp according to claim 1, characterized in that it is within the range of 64 to 61:39.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13213181A JPS5834553A (en) | 1981-08-25 | 1981-08-25 | Low pressure mercury vapor discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13213181A JPS5834553A (en) | 1981-08-25 | 1981-08-25 | Low pressure mercury vapor discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5834553A true JPS5834553A (en) | 1983-03-01 |
Family
ID=15074107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13213181A Pending JPS5834553A (en) | 1981-08-25 | 1981-08-25 | Low pressure mercury vapor discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141542A (en) * | 1988-09-12 | 1990-05-30 | Westinghouse Electric Corp <We> | Separation of zirconium and hafnium |
-
1981
- 1981-08-25 JP JP13213181A patent/JPS5834553A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141542A (en) * | 1988-09-12 | 1990-05-30 | Westinghouse Electric Corp <We> | Separation of zirconium and hafnium |
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