JP2783269B2 - Low pressure mercury vapor discharge lamp - Google Patents
Low pressure mercury vapor discharge lampInfo
- Publication number
- JP2783269B2 JP2783269B2 JP5243333A JP24333393A JP2783269B2 JP 2783269 B2 JP2783269 B2 JP 2783269B2 JP 5243333 A JP5243333 A JP 5243333A JP 24333393 A JP24333393 A JP 24333393A JP 2783269 B2 JP2783269 B2 JP 2783269B2
- Authority
- JP
- Japan
- Prior art keywords
- mercury
- glass bulb
- glass
- metal substrate
- bulb
- 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.)
- Expired - Fee Related
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
- H01J61/12—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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水銀を定量封入した蛍
光ランプなどの低圧水銀蒸気放電ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-pressure mercury vapor discharge lamp such as a fluorescent lamp containing a fixed amount of mercury.
【０００２】[0002]
【従来の技術】蛍光ランプに代表される低圧水銀蒸気放
電ランプに水銀を封入する方法としては、液状の水銀を
ランプに接続した細管から滴下するのが最も一般的であ
るが水銀を定量封入することが困難である。これを解決
するために、水銀をアマルガムとして封入する方法、水
銀合金として封入し加熱して放出させる方法、水銀をペ
レットに含浸させてから封入する方法や水銀をガラスカ
プセルに入れて封入する方法等がある。これらの方法に
よれば水銀を滴下する方法よりは定量封入ができる。2. Description of the Related Art As a method of filling mercury into a low-pressure mercury vapor discharge lamp represented by a fluorescent lamp, it is most common to drop liquid mercury from a thin tube connected to the lamp. It is difficult. To solve this problem, a method of filling mercury as amalgam, a method of filling it as a mercury alloy and heating and releasing it, a method of filling mercury into pellets before filling, a method of filling mercury in glass capsules, etc. There is. According to these methods, a fixed amount of sealing can be performed as compared with the method of dropping mercury.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、アマル
ガムはその温度特性からどのようなランプにも利用でき
るものではない。また、ガラスカプセルはその構造が複
雑で高価なものとなり、さらに従来の水銀合金、水銀ペ
レットはともにその固定方法が難しい欠点があった。However, amalgam cannot be used for any lamp due to its temperature characteristics. Further, the glass capsule has a complicated structure and is expensive, and the conventional mercury alloy and the mercury pellet both have the disadvantage that the fixing method is difficult.
【０００４】本発明は、従来知られている水銀合金の中
から簡単にランプに固定できそうなものを選択し、これ
について新たな固定方法を考え、定量封入が容易で安価
に行える低圧水銀蒸気放電ランプを提供することを目的
とする。[0004] The present invention selects a low-pressure mercury vapor that can be easily fixed to a lamp from among conventionally known mercury alloys, considers a new fixing method, and enables easy and inexpensive quantitative filling. It is an object to provide a discharge lamp.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の低圧水銀
蒸気放電ランプは、ガラスバルブの内側に形成した蛍光
発光層を、ガラスバルブ両端に電極を設け、さらにガラ
スバルブ内に、ランプの動作時のバルブ壁温度を越えか
つガラスバルブ加工温度未満で溶融し、水銀放出後は水
銀を再吸収しない水銀放出金属基体を封入し、この水銀
放出金属基体から水銀蒸気を放出した低圧水銀蒸気放電
ランプであり、ガラスバルブ端部には節部が形成されて
おり、この節部に水銀放出金属基体が固着していること
を特徴とする。According to a first aspect of the present invention, there is provided a low-pressure mercury vapor discharge lamp comprising: a fluorescent light-emitting layer formed inside a glass bulb; electrodes provided at both ends of the glass bulb; A low-pressure mercury vapor discharge lamp in which a mercury-releasing metal substrate that melts at a temperature exceeding the bulb wall temperature at the time and below the glass bulb processing temperature and does not re-absorb mercury after mercury release is enclosed, and emits mercury vapor from the mercury-releasing metal substrate. A node is formed at the end of the glass bulb, and a mercury-releasing metal substrate is fixed to the node.
【０００６】請求項２記載の低圧水銀蒸気放電ランプ
は、ガラスバルブの内側に形成した蛍光発光層を、ガラ
スバルブ両端に電極を設け、さらにガラスバルブ内に、
ランプの動作時のバルブ壁温度を越えかつガラスバルブ
加工温度未満で溶融し、水銀放出後は水銀を再吸収しな
い水銀放出金属基体を封入し、この水銀放出金属基体か
ら水銀蒸気を放出した低圧水銀蒸気放電ランプであり、
ガラスバルブは鉛ガラスの部分を具備し、鉛ガラス部分
に水銀放出金属基体が固着されていることを特徴とす
る。According to a second aspect of the present invention, there is provided a low-pressure mercury vapor discharge lamp comprising a fluorescent light-emitting layer formed inside a glass bulb, electrodes provided at both ends of the glass bulb, and
A low-pressure mercury that melts above the bulb wall temperature during lamp operation and below the glass bulb processing temperature and that does not reabsorb mercury after mercury release, encloses a mercury-releasing metal substrate, and releases mercury vapor from the mercury-releasing metal substrate. A vapor discharge lamp,
The glass bulb has a lead glass portion, and a mercury-releasing metal substrate is fixed to the lead glass portion.
【０００７】請求項３記載の低圧水銀蒸気放電ランプ
は、請求項２において、ガラスバルブがソーダライムガ
ラスからなるメインチューブと、メインチューブの端部
を封止し、電極を支持する鉛ガラスステムとを具備し、
水銀放出金属基体が、鉛ガラスステムに固着しているこ
とを特徴とする。According to a third aspect of the present invention, there is provided a low-pressure mercury vapor discharge lamp according to the second aspect, wherein the glass bulb comprises a main tube made of soda-lime glass, a lead glass stem sealing an end of the main tube and supporting an electrode. With
The mercury-releasing metal substrate is fixed to the lead glass stem.
【０００８】請求項４記載の低圧水銀蒸気放電ランプ
は、ガラスバルブの内側に形成した蛍光発光層を、ガラ
スバルブ両端に電極を設け、さらにガラスバルブ内に、
ランプの動作時のバルブ壁温度を越えかつガラスバルブ
加工温度未満で溶融し、水銀放出後は水銀を再吸収しな
い水銀放出金属基体を封入し、この水銀放出金属基体か
ら水銀蒸気を放出した低圧水銀蒸気放電ランプであり、
ガラスバルブはソーダライムガラスからなるメインチュ
ーブと、メインチューブの端部を封止し、電極を支持す
る鉛ガラスステムとを具備するとともに、水銀放出金属
基体はメインチューブと鉛ガラスステムの境界部分に固
着していることを特徴とする。 請求項５記載の低圧水
銀蒸気放電ランプは、請求項１ないし４において、ガラ
スバルブを環形としたことを特徴とする。According to a fourth aspect of the present invention, there is provided a low-pressure mercury vapor discharge lamp comprising: a fluorescent light-emitting layer formed inside a glass bulb; electrodes provided at both ends of the glass bulb;
A low-pressure mercury that melts above the bulb wall temperature during lamp operation and below the glass bulb processing temperature and that does not reabsorb mercury after mercury release, encloses a mercury-releasing metal substrate, and releases mercury vapor from the mercury-releasing metal substrate. A vapor discharge lamp,
The glass bulb has a main tube made of soda lime glass, and a lead glass stem that seals the end of the main tube and supports an electrode, and a mercury-releasing metal substrate is provided at the boundary between the main tube and the lead glass stem. It is characterized by being fixed. A low-pressure mercury vapor discharge lamp according to a fifth aspect is characterized in that, in any one of the first to fourth aspects, the glass bulb has an annular shape.
【０００９】請求項６記載の低圧水銀蒸気放電ランプ
は、請求項１ないし４において、水銀放出金属基体をＺ
ｎを主体としたことを特徴とする。According to a sixth aspect of the present invention, there is provided a low-pressure mercury vapor discharge lamp according to any one of the first to fourth aspects, wherein
n is mainly used.
【００１０】請求項７記載の低圧水銀蒸気放電ランプ
は、請求項１ないし４において、水銀放出金属基体近傍
を除いたガラスバルブ内面に蛍光発光層を有することを
特徴とする。A low-pressure mercury vapor discharge lamp according to a seventh aspect is characterized in that, in the first to fourth aspects, a fluorescent light-emitting layer is provided on the inner surface of the glass bulb except for the vicinity of the mercury-emitting metal substrate.
【００１１】[0011]
【作用】請求項１記載の発明では、ランプの動作時のバ
ルブ壁温度を越えかつガラスバルブ加工温度未満で溶融
する水銀放出金属基体であるので、簡単にガラスバルブ
に溶融固着し、しかもガラスバルブ端部の節部に固着す
るので、固着接触面積が大きく脱落しにくい。According to the first aspect of the present invention, the mercury-releasing metal substrate melts at a temperature exceeding the bulb wall temperature during the operation of the lamp and below the glass bulb processing temperature, so that it is easily melted and fixed to the glass bulb. Since it is fixed to the end node, the fixed contact area is large and it is hard to fall off.
【００１２】請求項２記載の発明では、ランプの動作時
のバルブ壁温度を越えかつガラスバルブ加工温度未満で
溶融する水銀放出金属基体であるので、簡単にガラスバ
ルブに溶融固着し、しかも鉛ガラスバルブ部分に固着す
るので、ガラスバルブの鉛成分が水銀放出金属基体と馴
染み、脱落しにくい。According to the second aspect of the present invention, since the mercury-releasing metal substrate melts at a temperature exceeding the bulb wall temperature during operation of the lamp and below the glass bulb processing temperature, it is easily melted and fixed to the glass bulb, and furthermore, the lead glass is used. Since it adheres to the bulb portion, the lead component of the glass bulb becomes compatible with the mercury-releasing metal substrate and is hard to fall off.
【００１３】特に請求項３記載の発明では、ステムガラ
スは通常鉛ガラスなので、この部分に水銀放出金属基体
を容易にかつ強固に固着できる。In particular, in the third aspect of the invention, since the stem glass is usually lead glass, the mercury-releasing metal substrate can be easily and firmly fixed to this portion.
【００１４】請求項４記載の発明では、ランプの動作時
のバルブ壁温度を越えかつガラスバルブ加工温度未満で
溶融する水銀放出金属基体であるので、簡単にガラスバ
ルブに溶融固着し、しかも水銀放出金属基体はメインチ
ューブと鉛ガラスステムの境界部分固着するので、ガラ
スバルブの鉛成分が水銀放出金属基体と馴染み、また、
境界部分はガラスバルブ無い表面があれているので、特
に水銀放出金属基体は脱落しにくい。According to the fourth aspect of the present invention, since the mercury-releasing metal substrate is melted at a temperature exceeding the bulb wall temperature during operation of the lamp and less than the glass bulb processing temperature, it is easily melted and fixed to the glass bulb, and the mercury emission is achieved. Since the metal base is fixed at the boundary between the main tube and the lead glass stem, the lead component of the glass bulb is compatible with the mercury-emitting metal base,
Since the boundary portion has a surface without a glass bulb, the mercury-releasing metal substrate is particularly difficult to fall off.
【００１５】請求項５記載の発明では、ガラスバルブは
環形であり、特に水銀を封入しやすい。請求項６記載の
発明では、Ｚｎを主体とした水銀放出金属基体は、請求
項１ないし４の低圧水銀蒸気放電ランプに適する。According to the fifth aspect of the present invention, the glass bulb has a ring shape, and is particularly easy to contain mercury. In the invention according to claim 6, the mercury-releasing metal base mainly composed of Zn is suitable for the low-pressure mercury vapor discharge lamp according to claims 1 to 4.
【００１６】請求項７記載の発明では、低圧水銀蒸気放
電ランプは、水銀放出金属基体とガラスバルブ内面との
間に蛍光発光層が介在しないので、水銀放出金属基体の
固着が強固である。According to the seventh aspect of the present invention, in the low-pressure mercury vapor discharge lamp, since the fluorescent light emitting layer is not interposed between the mercury-emitting metal substrate and the inner surface of the glass bulb, the fixing of the mercury-emitting metal substrate is strong.
【００１７】[0017]
【実施例】以下、本発明の実施例を図を参照して説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１８】図１は、本発明の第一の実施例の蛍光ラン
プの一部断面図である。図において１１は鉛成分を含ま
ないソーダライムガラスからなる環状のメインチューブ
であり、内部には水銀およびアルゴン等の希ガスを含む
可電離性媒体が封入されている。１２はメインチューブ
内面に形成した蛍光発光層である。１３は電極であっ
て、電極１３は鉛ガラスからなるステム１４に設置され
ている。ステム１４には排気管１５が設けられている。
メインチューブ１１とステム１４の境界部１６には節部
１７がモールド整形されている。FIG. 1 is a partial sectional view of a fluorescent lamp according to a first embodiment of the present invention. In the figure, reference numeral 11 denotes an annular main tube made of soda lime glass containing no lead component, and an ionizable medium containing a rare gas such as mercury and argon is sealed therein. Reference numeral 12 denotes a fluorescent light emitting layer formed on the inner surface of the main tube. Reference numeral 13 denotes an electrode, and the electrode 13 is provided on a stem 14 made of lead glass. The stem 14 is provided with an exhaust pipe 15.
A node 17 is molded at a boundary 16 between the main tube 11 and the stem 14.
【００１９】節部１７は本来直状のガラス管を環状に整
形するときにこの節部１７をチャックで掴むためのもの
である。しかしながら、本実施例では節部１７を環状に
整形するためだけでなく、水銀放出金属基体１８を固定
するためにも用いる。すなわち、この節部１７のより端
部側の蛍光発光層１３の形成されていない部分に水銀放
出金属基体１８を固定している。この水銀放出金属基体
１８は水銀を放出した後の金属であり、亜鉛Ｚｎを主成
分としたものである。このものの水銀放出前は水銀との
合金（水銀濃度５０ないし６０重量％の過剰溶融したも
ので、この合金自体は知られている）を形成している
が、加熱によりほとんどの水銀を放出し、水銀を僅かに
含んだＺｎ−Ｈｇ合金だけが残留する。水銀放出後は、
水銀の再吸収は実質的に行われない。実質的にとは、ア
マルガムのようにバルブ内の水銀蒸気圧に影響を与える
程吸収しないという意味である。The node 17 is used for gripping the node 17 with a chuck when an originally straight glass tube is shaped into an annular shape. However, in the present embodiment, it is used not only for shaping the node portion 17 into a ring shape but also for fixing the mercury-emitting metal base 18. That is, the mercury-releasing metal base 18 is fixed to a portion of the node 17 where the fluorescent light emitting layer 13 is not formed on the end side. The mercury-releasing metal substrate 18 is a metal after releasing mercury, and is mainly composed of zinc Zn. Before the release of mercury, it forms an alloy with mercury (the alloy itself is known to be overmelted with a mercury concentration of 50 to 60% by weight, and this alloy itself is released). Only the Zn-Hg alloy containing a small amount of mercury remains. After mercury release,
There is virtually no mercury reabsorption. Substantially means that, like amalgam, it does not absorb enough to affect the mercury vapor pressure in the bulb.
【００２０】また、封入量は、水銀放出前は水銀との合
金の状態で直径約１．５ｍｍの大きさの粒１個である
が、これよりも小さいものを数個封入してもよい。Before the mercury is released, the amount of the encapsulated particles is one particle having a diameter of about 1.5 mm in an alloy state with mercury, but several particles smaller than this may be enclosed.
【００２１】このようなランプは以下のようにして製造
される。蛍光体焼成行程等を経て内面に蛍光発光層１２
を形成したソーダライムガラスバルブからなる直状のメ
インチューブ１１の両端に、電極１３と排気管１５を具
備した鉛ガラスからなるステム１４を封止する。このと
き、２つのうちの一方の排気管は閉塞されていて、他方
は閉塞されていない。また、ステム１４を封止すると
き、ガラスが柔らかいうちに、メインチューブ１１とス
テム１４の境界部１６に節部１７が形成されるようモー
ルド整形される。メインチューブ１１の両端の封止、モ
ールド工程を終了後、排気管が閉塞されている端部を下
にしてガラスバルブ全体を加熱し、メインチューブ１１
を軟化させる。その後下側の節部１７を掴んで曲げ、円
形ドラムに巻き付けて環状に整形する。このとき、ガラ
スバルブ内のガス圧を高めて、メインチューブ１１が潰
れないようにする。その後、ランプ全体を加熱しながら
閉塞されていない排気管１５から排気を行い、希ガスを
封入した後、水銀放出前の、すなわち水銀を含有した水
銀放出金属基体１８を排気管１５からランプ内に入れ
る。その後排気管をチップオフする。水銀を含有した水
銀放出金属基体１８を入れる際、メインチューブ１１、
ステム１４を含めてかなり高温になっており、水銀放出
金属基体１８は重力下側に落下して節部１７近傍の境界
部１６に移動する。水銀放出金属基体１８は、そこで高
温のメインチューブ１１とステム１４の境界部１６に接
触し、そのままあるいは若干の加熱（ガラスバルブの軟
化温度未満）を加えることで水銀を放出するとともに溶
融し、境界部１６に溶融固着する。以上のようにしてラ
ンプは完成する。Such a lamp is manufactured as follows. After the phosphor baking process, etc., the fluorescent light emitting layer 12
A stem 14 made of lead glass and provided with an electrode 13 and an exhaust pipe 15 is sealed at both ends of a straight main tube 11 made of a soda-lime glass bulb formed with. At this time, one of the two exhaust pipes is closed and the other is not closed. When the stem 14 is sealed, the glass is soft and molded so that a node 17 is formed at the boundary 16 between the main tube 11 and the stem 14. After the sealing and molding steps of both ends of the main tube 11 are completed, the entire glass bulb is heated with the end where the exhaust pipe is closed down, and the main tube 11 is heated.
Softens. Thereafter, the lower node 17 is grasped and bent, wound around a circular drum, and shaped into an annular shape. At this time, the gas pressure in the glass bulb is increased to prevent the main tube 11 from being crushed. After that, the entire lamp is evacuated while being heated and the exhaust gas is exhausted from the exhaust pipe 15 which is not closed, and after the rare gas is sealed, the mercury-releasing metal base 18 before mercury release, that is, the mercury-containing metal base 18 is put into the lamp from the exhaust pipe 15. Put in. Thereafter, the exhaust pipe is chipped off. When the mercury-releasing metal substrate 18 containing mercury is charged, the main tube 11
Since the temperature of the mercury-releasing metal substrate 18 including the stem 14 is considerably high, the mercury-releasing metal substrate 18 falls under gravity and moves to the boundary 16 near the node 17. The mercury-releasing metal substrate 18 contacts the high-temperature boundary portion 16 between the main tube 11 and the stem 14, and releases mercury and melts as it is or by applying a slight heating (below the softening temperature of the glass bulb). It is melted and fixed to the portion 16. The lamp is completed as described above.
【００２２】以上のランプにおいて、水銀放出金属基体
１８は、固形であるから定量封入と減量化が容易であ
り、また比較的低い温度で水銀放出するので、放出のた
めの特別な手段は必要としない。In the lamp described above, since the mercury-releasing metal substrate 18 is solid, it can be easily filled and reduced in quantity, and emits mercury at a relatively low temperature. do not do.
【００２３】定量封入の効果は、従来タイプの水銀適下
方式による封入水銀量と比較することで確認できる。Ｆ
ＣＬ３０を各々の方式で１００本製作して封入された水
銀量を測定したのが表１の結果である。The effect of the quantitative filling can be confirmed by comparing with the amount of mercury filled by the conventional mercury submerging method. F
Table 1 shows the results of measuring the amount of enclosed mercury by manufacturing 100 CL30s by each method.
【００２４】[0024]
【表１】 これらの結果に示されるように、Zn-Hg合金を使用した
場合には定量化、減量化ができており、ランプ特性につ
いても差異はなく問題ない。[Table 1] As shown in these results, when the Zn-Hg alloy was used, quantification and reduction were achieved, and there was no difference in lamp characteristics, and there was no problem.
【００２５】また、固着にあたり、上記実施例のよう
に、節部１７は図１の断面方向に見られる湾曲している
ので、この節部１７に水銀放出金属基体１８を固着する
と、固着接触面積が大きく脱落しにくい。In fixing, as in the above-described embodiment, the node 17 is curved as seen in the cross-sectional direction of FIG. 1. Therefore, when the mercury-releasing metal substrate 18 is fixed to the node 17, the fixed contact area is reduced. It is hard to fall off greatly.
【００２６】またさらに水銀放出金属基体１８は鉛ガラ
スバルブ１１部分に固着すれば、ガラスバルブ１１の鉛
成分が水銀放出金属基体１８と馴染み、脱落しにくい。
またステム１４は通常鉛ガラスなので、この部分に水銀
放出金属基体１８を容易にかつ強固に固着できる。特に
この実施例では水銀放出金属基体１８はメインチューブ
１１と鉛ガラスステム１４の境界部分固着するので、ガ
ラスバルブ１１の鉛成分が水銀放出金属基体１８と馴染
む効果を持ち、また、境界部分はガラスバルブ１１内の
表面があれているので、特に水銀放出金属基体１８は脱
落しにくい。Further, if the mercury-releasing metal substrate 18 is fixed to the lead glass bulb 11, the lead component of the glass bulb 11 becomes compatible with the mercury-releasing metal substrate 18 and is hardly dropped.
Further, since the stem 14 is usually made of lead glass, the mercury-releasing metal substrate 18 can be easily and firmly fixed to this portion. In particular, in this embodiment, the mercury-releasing metal substrate 18 is fixed to the boundary between the main tube 11 and the lead glass stem 14, so that the lead component of the glass bulb 11 has an effect of becoming compatible with the mercury-releasing metal substrate 18, and the boundary portion is made of glass. Since the surface inside the bulb 11 is exposed, the mercury-releasing metal substrate 18 is particularly difficult to fall off.
【００２７】また、本実施例では、ガラスバルブ１１は
環形であり、環形に加工した後水銀放出金属基体１８を
封入するので、節部１７の環状外側（図１の位置）に水
銀放出金属基体１８が位置し、若干の加熱が必要なと
き、容易に行える。また、サエス社製のジェメデスと称
されるリボン状の水銀放出構体をリング状に成形して電
極の周囲に配置する場合に、環形に成形するとき、リン
グがガラスバルブに接触して蛍光発光層を傷つけてしま
うような欠点は、本発明の場合にはみられない。Further, in this embodiment, the glass bulb 11 is ring-shaped, and after being processed into a ring shape, the mercury-releasing metal substrate 18 is sealed therein. 18 is located and can be easily performed when slight heating is required. Also, when a ribbon-shaped mercury-releasing structure called Gemedes manufactured by Saes Corporation is formed in a ring shape and placed around an electrode, when the ring is formed into a ring shape, the ring comes into contact with a glass bulb and a fluorescent light emitting layer is formed. The disadvantage of damaging is not seen in the case of the present invention.
【００２８】また、上記のような封入工程によれば排気
工程の余熱を利用できるので、自動的に、また加熱する
としても若干の加熱で容易に水銀が放出できる。Further, according to the above-described encapsulation process, since the residual heat of the exhaust process can be used, mercury can be easily and automatically released even if heated.
【００２９】加熱時間や加熱温度については、使用する
水銀ペレット（水銀放出前の水銀放出金属基体１８）の
種類、水銀放出金属基体１８の位置、加熱開始時点での
ガラスバルブの温度によって適切な条件は変わってく
る。上記実施例のように、Ｚｎ−Ｈｇ水銀ペレット（Ｚ
ｎ：５０％、Ｈｇ：５０％）を節部に固定する場合、種
々加熱温度、加熱時間を変えて実験した結果を表２に示
す。加熱開始時点でのガラスバルブの温度は約２５度で
あり、加熱はバルブの節部に熱風機により熱風を吹き付
けることでおこなっている。バルブの節部と熱風機との
間隔は１０ｍｍである。The heating time and the heating temperature are determined by appropriate conditions depending on the type of mercury pellet (the mercury-releasing metal substrate 18 before mercury release), the position of the mercury-releasing metal substrate 18, and the temperature of the glass bulb at the start of heating. Will change. As in the above embodiment, a Zn-Hg mercury pellet (Z
(n: 50%, Hg: 50%) are fixed to the nodes, and the results of experiments conducted by changing various heating temperatures and heating times are shown in Table 2. The temperature of the glass bulb at the start of heating is about 25 degrees, and the heating is performed by blowing hot air on a node of the bulb with a hot air blower. The distance between the node of the valve and the hot blower is 10 mm.
【００３０】[0030]
【表２】 熱風温度が低いと長時間加熱しても水銀放出金属基体１
８は水銀を放出するがガラスバルブに全く固定されなか
ったり（表中×印）、一時的に固定されてもすぐに脱落
したり（表中△印）、また、温度を高くしても加熱時間
が短いと同じく固定されない。逆に温度が高過ぎたり、
加熱時間が長過ぎると基体金属が溶融しすぎて黒化をお
こしたり、水銀の爆発的蒸発により、蛍光発光層１２の
汚損黒化がおこる（表中□印）。上記ケースでは摂氏４
５０度程度で２０から２５秒加熱するのが最適（表中○
印）であった。[Table 2] When the hot air temperature is low, the mercury-releasing metal substrate 1 can be heated for a long time.
8 emits mercury but is not fixed to the glass bulb at all (marked by x in the table), falls off immediately after being temporarily fixed (marked with △ in the table), or heats even when the temperature is increased. If the time is short, it is not fixed as well. Conversely, if the temperature is too high,
If the heating time is too long, the base metal is excessively melted to cause blackening, and explosive evaporation of mercury causes the fluorescent light emitting layer 12 to be stained and blackened (indicated by □ in the table). 4 Celsius in the above case
It is best to heat at about 50 degrees for 20 to 25 seconds.
Mark).
【００３１】図２に第二の実施例の蛍光ランプを示す。
このものは直管形蛍光ランプであるが、このものはメイ
ンチューブ１１が直管であることと、環形の蛍光ランプ
に比較して節部１７が小さいことが第一の実施例と異な
る点である。FIG. 2 shows a fluorescent lamp according to the second embodiment.
This is a straight tube fluorescent lamp. This is different from the first embodiment in that the main tube 11 is a straight tube and the node portion 17 is smaller than that of the ring-shaped fluorescent lamp. is there.
【００３２】これについても、水銀放出金属基体１８
は、固形であるから定量封入が容易であり、また比較的
低い温度で水銀放出するので、放出のための特別な手段
は必要としない。また、固着にあたり、上記実施例のよ
うに、比較的小さいが、節部１７に固着する水銀放出金
属基体１８なるので、簡単にガラスバルブ１１に溶融固
着し、しかもガラスバルブ１１端部の節部１７に固着す
ると、固着接触面積が大きくなり脱落しにくい。さらに
また、水銀放出金属基体１８は鉛ガラスバルブ１１部分
に固着すれば、ガラスバルブ１１の鉛成分が水銀放出金
属基体１８と馴染み、脱落しにくい。また、ステム１４
は通常鉛ガラスなので、この部分に水銀放出金属基体１
８を容易にかつ強固に固着できる。特にこの実施例では
水銀放出金属基体１８はメインチューブ１１と鉛ガラス
ステム１４の境界部分固着するので、ガラスバルブ１１
の鉛成分が水銀放出金属基体１８と馴染む効果を持ちま
た、境界部分はガラスバルブ１１内表面があれているの
で、特に水銀放出金属基体１８は脱落しにくい。Also in this case, the mercury-releasing metal substrate 18
Since it is solid, it can be easily filled in a fixed amount, and emits mercury at a relatively low temperature, so that no special means for release is required. In addition, since the mercury-releasing metal substrate 18 is fixed to the node 17 although it is relatively small as in the above embodiment, it is easily melted and fixed to the glass bulb 11 and the node at the end of the glass bulb 11 is fixed. When it is fixed to the fixing member 17, the contact area becomes large and it is difficult to drop. Furthermore, if the mercury-releasing metal substrate 18 is fixed to the lead glass bulb 11, the lead component of the glass bulb 11 becomes compatible with the mercury-releasing metal substrate 18 and hardly falls off. In addition, stem 14
Is usually a lead glass.
8 can be easily and firmly fixed. In particular, in this embodiment, the mercury-releasing metal substrate 18 is fixed to the boundary between the main tube 11 and the lead glass stem 14, so that the glass bulb 11 is fixed.
The lead component has the effect of becoming compatible with the mercury-releasing metal substrate 18, and since the boundary portion has an exposed inner surface of the glass bulb 11, the mercury-releasing metal substrate 18 is particularly difficult to fall off.
【００３３】上記実施例では、封入固定された水銀放出
金属基体１８は１個であるが、複数個に分割して封入し
てもよく、この場合、１つくらい固定されないものがあ
っても全く問題ない。必要な分量の水銀放出金属基体が
本発明の趣旨の範囲で固定されていれば良い。In the above embodiment, the number of the enclosed and fixed mercury-releasing metal substrates 18 is one. However, the mercury-releasing metal substrate 18 may be divided into a plurality of parts and sealed. no problem. It suffices if the required amount of the mercury-releasing metal substrate is fixed within the scope of the present invention.
【００３４】また、上記実施例の低圧水銀蒸気放電ラン
プは、蛍光発光層を有しているが、紫外線ランプなどの
ように、これを形成しないランプであってもよい。Although the low-pressure mercury vapor discharge lamp of the above embodiment has a fluorescent light emitting layer, it may be a lamp that does not form this, such as an ultraviolet lamp.
【００３５】さらに第一の実施例の環形蛍光ランプの端
部に形成されている節部１７は、バルブ端部を内側にへ
こませた形状であるが、逆にこれを外側に出っ張らせ、
あるいは膨らませた形状であっても良く、この場合でも
環形成形の際に把持できる形状であるとともに、水銀放
出金属基体がこの出っ張り、あるいは膨らみに収容さ
れ、接着面積が多くなって、強固に固定できる。The node 17 formed at the end of the ring-shaped fluorescent lamp of the first embodiment has a shape in which the end of the bulb is depressed inward. Conversely, the end protrudes outward.
Alternatively, it may be a swelled shape, and in this case, it is a shape that can be gripped in the ring forming shape, and the mercury releasing metal substrate is housed in this protrusion or bulge, the bonding area is increased, and it can be fixed firmly .
【００３６】[0036]
【発明の効果】請求項１記載の発明では、ランプの動作
時のバルブ壁温度を越えかつガラスバルブ加工温度未満
で溶融する水銀放出金属基体であるので、簡単にガラス
バルブに溶融固着し、しかもガラスバルブ端部の節部に
固着するので、固着接触面積が大きく脱落しにくい。According to the first aspect of the present invention, since the mercury-releasing metal substrate melts at a temperature exceeding the bulb wall temperature during the operation of the lamp and below the glass bulb processing temperature, it is easily melted and fixed to the glass bulb. Since it is fixed to the node at the end of the glass bulb, the contact area of the fixing is large and it is hard to fall off.
【００３７】請求項２記載の発明では、ランプの動作時
のバルブ壁温度を越えかつガラスバルブ加工温度未満で
溶融する水銀放出金属基体であるので、簡単にガラスバ
ルブに溶融固着し、しかも鉛ガラスバルブ部分に固着す
るので、ガラスバルブの鉛成分が水銀放出金属基体と馴
染み、脱落しにくい。According to the second aspect of the present invention, since the mercury-releasing metal substrate is melted at a temperature exceeding the bulb wall temperature during operation of the lamp and less than the glass bulb processing temperature, it is easily melted and fixed to the glass bulb, and furthermore, the lead glass is formed. Since it adheres to the bulb portion, the lead component of the glass bulb becomes compatible with the mercury-releasing metal substrate and is hard to fall off.
【００３８】特に請求項３記載の発明では、ステムガラ
スは通常鉛ガラスなので、この部分に水銀放出金属基体
を容易にかつ強固に固着できる。In particular, according to the third aspect of the present invention, since the stem glass is usually lead glass, the mercury-releasing metal substrate can be easily and firmly fixed to this portion.
【００３９】請求項４記載の発明では、ランプの動作時
のバルブ壁温度を越えかつガラスバルブ加工温度未満で
溶融する水銀放出金属基体であるので、簡単にガラスバ
ルブに溶融固着し、しかも水銀放出金属基体はメインチ
ューブと鉛ガラスステムの境界部分固着するので、ガラ
スバルブの鉛成分が水銀放出金属基体と馴染み、また、
境界部分はガラスバルブ無い表面があれているので、特
に水銀放出金属基体は脱落しにくい。According to the fourth aspect of the present invention, since the mercury-releasing metal substrate melts at a temperature exceeding the bulb wall temperature during operation of the lamp and less than the glass bulb processing temperature, it is easily melted and fixed to the glass bulb and emits mercury. Since the metal base is fixed at the boundary between the main tube and the lead glass stem, the lead component of the glass bulb is compatible with the mercury-emitting metal base,
Since the boundary portion has a surface without a glass bulb, the mercury-releasing metal substrate is particularly difficult to fall off.
【００４０】請求項５記載の発明では、ガラスバルブは
環形であり、特に水銀を封入しやすい。請求項６記載の
発明では、Ｚｎを主体とした水銀放出金属基体は、請求
項１ないし４の低圧水銀蒸気放電ランプに適する。According to the fifth aspect of the present invention, the glass bulb has a ring shape, and is particularly easy to contain mercury. In the invention according to claim 6, the mercury-releasing metal base mainly composed of Zn is suitable for the low-pressure mercury vapor discharge lamp according to claims 1 to 4.
【００４１】請求項７記載の発明では、低圧水銀蒸気放
電ランプは、水銀放出金属基体とガラスバルブ内面との
間に蛍光発光層が介在しないので、水銀放出金属基体の
固着が強固である。According to the seventh aspect of the present invention, in the low-pressure mercury vapor discharge lamp, since the fluorescent light emitting layer is not interposed between the mercury-emitting metal substrate and the inner surface of the glass bulb, the adhesion of the mercury-emitting metal substrate is strong.
【図１】本発明の第一実施例を示す環形蛍光ランプの一
部を破断し、かつ一部を拡大して示す正面図である。FIG. 1 is a front view showing a ring-shaped fluorescent lamp according to a first embodiment of the present invention, with a part broken away and a part enlarged.
【図２】本発明の第二実施例を示す直管形蛍光ランプの
一部を破断し、かつ一部を拡大して示す正面図である。FIG. 2 is a front view of a straight tube type fluorescent lamp according to a second embodiment of the present invention, in which a part is cut away and a part is enlarged.
１１…ガラスバルブ １２…蛍光発光層 １３…電極 １４…ステムガラス １７…節部 １８…水銀放出金属基体 DESCRIPTION OF SYMBOLS 11 ... Glass bulb 12 ... Fluorescent light emitting layer 13 ... Electrode 14 ... Stem glass 17 ... Knot part 18 ... Mercury emission metal base
───────────────────────────────────────────────────── フロントページの続き (72)発明者 依藤 孝 東京都品川区東品川四丁目３番１号 東 芝ライテック株式会社内 (72)発明者 大浦 直也 東京都品川区東品川四丁目３番１号 東 芝ライテック株式会社内 (56)参考文献 特開 平１−302650（ＪＰ，Ａ) 特開 平４−357647（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01J 61/24──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takashi Yoto 4-3-1 Higashishinagawa, Shinagawa-ku, Tokyo Inside Toshiba Lighting & Technology Corporation (72) Inventor Naoya Ohura 4-3-1 Higashishinagawa, Shinagawa-ku, Tokyo No. Toshiba Lighting & Technology Corporation (56) References JP-A-1-302650 (JP, A) JP-A-4-357647 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) H01J 61/24
Claims (7)
られた電極と；ガラスバルブ内に封入され、ランプの動
作時のバルブ壁温度を越えかつガラスバルブ軟化温度未
満で溶融し、水銀放出後は水銀を実質的に再吸収しない
水銀放出金属基体と；水銀と希ガスとを含む放電媒体
と；を具備し、 上記ガラスバルブ端部には節部が形成されており、この
節部に水銀放出金属基体が固着されていることを特徴と
する低圧水銀蒸気放電ランプ。A glass bulb; electrodes provided at both ends of the glass bulb; enclosed in the glass bulb, melting above the bulb wall temperature during operation of the lamp and below the glass bulb softening temperature, and after releasing mercury, A mercury-releasing metal substrate that does not substantially re-absorb mercury; and a discharge medium containing mercury and a rare gas. A node is formed at the end of the glass bulb, and the node has a mercury-emitting metal. A low-pressure mercury vapor discharge lamp having a substrate fixed thereto.
られた電極と；ガラスバルブ内に封入され、ランプの動
作時のバルブ壁温度を越えかつガラスバルブ軟化温度未
満で溶融し、水銀放出後は水銀を実質的に再吸収しない
水銀放出金属基体と；水銀と希ガスとを含む放電媒体
と；を具備し、 ガラスバルブは鉛ガラスの部分を具備し、鉛ガラス部分
に水銀放出金属基体が固着されていることを特徴とする
低圧水銀蒸気放電ランプ。2. a glass bulb; electrodes provided at both ends of the glass bulb; enclosed in the glass bulb, and melted at a temperature exceeding the bulb wall temperature during operation of the lamp and below the glass bulb softening temperature, and after releasing mercury. A mercury-releasing metal substrate that does not substantially re-absorb mercury; a discharge medium containing mercury and a rare gas; the glass bulb includes a lead glass portion, and the mercury-releasing metal substrate adheres to the lead glass portion. A low-pressure mercury vapor discharge lamp characterized in that:
るメインチューブと、メインチューブの端部を封止し、
電極を支持する鉛ガラスステムとを具備し、水銀放出金
属基体は、鉛ガラスステムに固着されていることを特徴
とする請求項２記載の低圧水銀蒸気放電ランプ。3. The glass bulb seals a main tube made of soda lime glass and an end of the main tube,
The low-pressure mercury vapor discharge lamp according to claim 2, further comprising a lead glass stem supporting the electrode, wherein the mercury-releasing metal substrate is fixed to the lead glass stem.
られた電極と；ガラスバルブ内に封入され、ランプの動
作時のバルブ壁温度を越えかつガラスバルブ軟化温度未
満で溶融し、水銀放出後は水銀を実質的に再吸収しない
水銀放出金属基体と；水銀と希ガスとを含む放電媒体
と；を具備し、 ガラスバルブはソーダライムガラスからなるメインチュ
ーブと、メインチューブの端部を封止し、電極を支持す
る鉛ガラスステムとを具備し、水銀放出金属基体は、メ
インチューブと鉛ガラスステムの境界部分に固着されて
いることを特徴とする低圧水銀蒸気放電ランプ。4. A glass bulb; electrodes provided at both ends of the glass bulb; enclosed in the glass bulb, melting above the bulb wall temperature during operation of the lamp and below the glass bulb softening temperature, and after releasing mercury. A mercury-releasing metal substrate that does not substantially re-absorb mercury; a discharge medium containing mercury and a rare gas; wherein the glass bulb seals a main tube made of soda-lime glass and an end of the main tube. And a lead glass stem supporting an electrode, wherein the mercury-releasing metal substrate is fixed to a boundary between the main tube and the lead glass stem.
る請求項１ないし４のいずれか一記載の低圧水銀蒸気放
電ランプ。5. The low-pressure mercury vapor discharge lamp according to claim 1, wherein the glass bulb is ring-shaped.
ることを特徴とする請求項１ないし４のいずれか一記載
の低圧水銀蒸気放電ランプ。6. The low-pressure mercury vapor discharge lamp according to claim 1, wherein the mercury-releasing metal substrate is mainly composed of Zn.
ブ内面に蛍光発光層を有することを特徴とする請求項１
ないし４のいずれか一記載の低圧水銀蒸気放電ランプ。7. A fluorescent light-emitting layer is provided on the inner surface of the glass bulb except for the vicinity of the mercury-emitting metal substrate.
5. The low-pressure mercury vapor discharge lamp according to any one of claims 4 to 4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5243333A JP2783269B2 (en) | 1993-03-31 | 1993-09-29 | Low pressure mercury vapor discharge lamp |
| CN94102716A CN1096904A (en) | 1993-03-31 | 1994-03-12 | Low-pressure mercury vapor discharge lamp |
| KR1019940006177A KR940022672A (en) | 1993-03-31 | 1994-03-28 | Low pressure mercury vapor discharge lamp |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7480393 | 1993-03-31 | ||
| JP5-74803 | 1993-03-31 | ||
| JP5243333A JP2783269B2 (en) | 1993-03-31 | 1993-09-29 | Low pressure mercury vapor discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06338286A JPH06338286A (en) | 1994-12-06 |
| JP2783269B2 true JP2783269B2 (en) | 1998-08-06 |
Family
ID=26415984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5243333A Expired - Fee Related JP2783269B2 (en) | 1993-03-31 | 1993-09-29 | Low pressure mercury vapor discharge lamp |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2783269B2 (en) |
| KR (1) | KR940022672A (en) |
| CN (1) | CN1096904A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879216A (en) * | 1996-03-08 | 1999-03-09 | Matsushita Electronics Corporation | Method of fixing mercury containing alloy within fluorescent tubes |
| KR100402092B1 (en) * | 2000-12-27 | 2003-10-17 | 주식회사 지엘디 | A lamp for the flat type back light of LCD |
| CN101145484B (en) * | 2006-09-11 | 2010-06-09 | 陈宗烈 | T2-T1 standard hot electrode fluorescence lamp production method |
| CN107340604A (en) * | 2017-07-01 | 2017-11-10 | 北京曙光明电子光源仪器有限公司 | A kind of concentric glass correcting device for concentricity and its application method |
-
1993
- 1993-09-29 JP JP5243333A patent/JP2783269B2/en not_active Expired - Fee Related
-
1994
- 1994-03-12 CN CN94102716A patent/CN1096904A/en active Pending
- 1994-03-28 KR KR1019940006177A patent/KR940022672A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06338286A (en) | 1994-12-06 |
| KR940022672A (en) | 1994-10-21 |
| CN1096904A (en) | 1994-12-28 |
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