JPS59130061A - High pressure metal-vapor discharge lamp - Google Patents
High pressure metal-vapor discharge lampInfo
- Publication number
- JPS59130061A JPS59130061A JP417883A JP417883A JPS59130061A JP S59130061 A JPS59130061 A JP S59130061A JP 417883 A JP417883 A JP 417883A JP 417883 A JP417883 A JP 417883A JP S59130061 A JPS59130061 A JP S59130061A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- surface area
- emitting tube
- arc tube
- vapor discharge
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/825—High-pressure sodium lamps
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は１００Ｗ以下の高圧ナトリウムランプの演色性
の向上に関し、そのため本発明においては透光性アルミ
ナなどのセラミックスを発光管としてその中にＮａ−Ｈ
ｇアマルガムと始動ガスにＸ ｅ ｆ封入し、発光管の
管壁負荷ｋＺ（Ｗ／ｃ４）、発光管エンド（電極根元よ
シ外側領域）の発光′ａ外表面積を５（−）とした時、
ｓ／Ｚ≦１２としたことを特徴としている。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to improving the color rendering properties of high-pressure sodium lamps of 100 W or less, and for this reason, in the present invention, a ceramic such as translucent alumina is used as an arc tube, and Na- H
When the amalgam and starting gas are filled with X e f, the tube wall load of the arc tube is kZ (W/c4), and the outer surface area of the luminescence 'a at the arc tube end (the area outside the electrode base) is 5 (-). ,
It is characterized in that s/Z≦12.
高圧ナトｌ）ラムランプのような高圧金属蒸気放電灯は
、ランプ消費電力が手延くなると、電極損失の割合が増
して発光効率を低下させる傾向がある。このことは、ラ
ンプの演色性を高めるためにも大きな障害となっている
。High-pressure metal vapor discharge lamps, such as high-pressure natolamps, tend to suffer from an increased rate of electrode loss and reduced luminous efficiency as lamp power consumption increases. This is also a major obstacle to improving the color rendering properties of the lamp.
したがって、本発明の目的は高演色性の小形高圧金属蒸
気放屯灯金提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a compact high-pressure metal vapor discharge lamp with high color rendering properties.
上記目的全達成するため本発明においては、透光性セラ
ミックからなり、Ｎａ 、Ｈｇ、 Ｘｅが封入され、か
つ、１００Ｗ以下の消費゛成力である発光管を有するラ
ンプにおいて、発光管の管壁負荷をＺ（Ｗ／ｃｄ）、発
光管エンドの全表面積を５（−）としたとき、Ｓ／Ｚ≦
１２として高圧金属蒸気放電灯全構成したことを特徴と
している。In order to achieve all of the above objects, the present invention provides a lamp having an arc tube made of translucent ceramic, sealed with Na, Hg, and Xe, and having a power consumption of 100 W or less. When the load is Z (W/cd) and the total surface area of the arc tube end is 5 (-), S/Z≦
12, it is characterized by having a complete configuration of a high-pressure metal vapor discharge lamp.
実施例 はじめに、本発明の原理について述べる。Example First, the principle of the present invention will be described.
本発明は前述の欠点に鑑み種々実験・検討全行なった結
果、Ｎａ−ＨｇおよびＸｅを封入した１００Ｗ以下の高
圧ナトリウムランプの平均演色評師数几ａ ｆ ８ ’
０以上にするためには、発光管エンド（電極根元よシ外
側領域）の表面積Ｓ（ｍａ）を小さくすることの効果が
非常に大きいことを見出した。かつ これは発光管の管
壁負荷Ｚ（Ｗ／ｃｕｔ）と密接に関連しており、Ｒａ上
８０を保ち、管端保温を要しない表面積Ｓと管壁負荷Ｚ
との関係は８／Ｚ≦１２であることが判明した。管壁負
荷ＺＫ比して表面積Ｓが大きい場合、すなわちＳ／Ｚ＞
１２の場合は、発光管々端を金属箔等で保温しなければ
Ｒａ上８０が達成できない。管端を保温すると管端の複
雑な構造に対して熱的に無理なサイクルが加わり、その
結果、管端において、発光管にクランクが入りやすい欠
点がある。従って、保温せずに所望の演色性を得ること
の効果は極めて犬である。In view of the above-mentioned drawbacks, the present invention has been developed as a result of various experiments and studies, and has been developed based on the results of various experiments and studies.
It has been found that reducing the surface area S (ma) of the arc tube end (the area outside the electrode root) has a very large effect in order to make it 0 or more. And this is closely related to the tube wall load Z (W/cut) of the arc tube, and the surface area S and tube wall load Z that maintain Ra above 80 and do not require tube end insulation.
It was found that the relationship with Z is 8/Z≦12. When the surface area S is large compared to the pipe wall load ZK, that is, S/Z>
In the case of No. 12, Ra above 80 cannot be achieved unless the ends of the arc tube are insulated with metal foil or the like. When the tube end is kept warm, a thermally unreasonable cycle is applied to the complicated structure of the tube end, and as a result, there is a drawback that the arc tube is easily cranked at the tube end. Therefore, the effect of obtaining the desired color rendering properties without heat retention is extremely significant.
次に、本発明の具体的実施例について述べる。Next, specific examples of the present invention will be described.
実施例１
第１図は本発明による高圧ナトリウムランプの発光管の
断面を示したものである。同図において、透光性アルミ
ナからなるパイプ１の両端には電極２および排気管４を
備えたエンドディスク３が封止されて発光管がつくられ
ている。この発光管内にはＮａ 、Ｈｇ、Ｘｅガスがそ
れぞれ適量封入されている。そして、矢印Ａ −Ａ ’
方向の全表面積として定義される発光管エンドの表面積
Ｓと管壁負荷Ｚとの間にはＳ／Ｚ≦１２なる関係が成立
するように構成さ汎ている。Example 1 FIG. 1 shows a cross section of an arc tube of a high-pressure sodium lamp according to the present invention. In the figure, end disks 3 each having an electrode 2 and an exhaust pipe 4 are sealed at both ends of a pipe 1 made of translucent alumina to form an arc tube. Appropriate amounts of Na, Hg, and Xe gases are each sealed in the arc tube. And arrow A-A'
The structure is such that the relationship S/Z≦12 holds between the surface area S of the arc tube end defined as the total surface area in the direction and the tube wall load Z.
つまり、具体的寸法で述べると、内径６．８ Ｎ。In other words, in terms of specific dimensions, the inner diameter is 6.8N.
電極間距９３．１ ｃｍ、 Ｎ ａ −Ｈｇアマルガム
のＮａモル比’＆７５％とした８５Ｗの消費′電力の高
圧ナトリウムラングの発光管において、Ｓ／Ｚ＝１１．
１としたランプの演色性Ｒａは８３であり、目標を達成
できた。In a high-pressure sodium rung arc tube with an electrode distance of 93.1 cm and a Na-Hg amalgam Na molar ratio of 75% and a power consumption of 85 W, S/Z=11.
The color rendering property Ra of the lamp set to 1 was 83, and the target was achieved.
これに対して、第１１Δにおいて、管端エンどの排気管
４の直径を太くして全表面積Ｓを大きくし、８／Ｚ＝１
２．１としたとき、Ｒａ ＝ ７８であり、また、同様
に、Ｓ／Ｚ＝１４としたときはＲａ−６０で、共に几ａ
が〈８０とな９、目標全達成できなかった。On the other hand, in the 11th Δ, the diameter of the exhaust pipe 4 at the pipe end is increased to increase the total surface area S, and 8/Z=1
2.1, Ra = 78, and similarly, when S/Z = 14, Ra-60, both of which are
However, I was unable to achieve all of my goals with a score of 80.
実施例２
第２図７は本発明による高圧ナト１，１ウムランプの発
光管の断面を示したものであり、第１図との違いは透光
性アルミナからなるパイプ１′の両端部が縮径されてい
る点にある。これは矢印Ａ−Ａ’で示した方向の全表面
積ｓを小さくするためになされたものである。Embodiment 2 FIG. 2 7 shows a cross section of the arc tube of a high-pressure Na 1.1 Um lamp according to the present invention, and the difference from FIG. It is at the point where it is diameter. This was done to reduce the total surface area s in the direction indicated by arrow AA'.
８５Ｗの消費電力を有する第２図に示す構造の発光管で
、内径６．６胴、管壁負荷Ｚ＝１１．７Ｗ／ｃｒｄでＳ
／Ｚ＝９．２のものはＲａ＝８５となり、目標を達成で
きた。これに対して、表面＄ｓ？大きくしていきＳ／Ｚ
＝１１．８としたときＲａ ＝ ７９となシ目標を達成
できなかった。The arc tube with the structure shown in Fig. 2 has a power consumption of 85 W, an inner diameter of 6.6 mm, and a tube wall load of Z = 11.7 W/crd.
/Z=9.2 had Ra=85, achieving the target. On the other hand, surface $s? Increase S/Z
When Ra = 11.8, the target was not achieved as Ra = 79.
以上述べた如く、本発明によって管端保温膜を設けなく
ても高い演色性が得られる高圧ナトリウムランプの提供
が可能となった。As described above, the present invention has made it possible to provide a high-pressure sodium lamp that can obtain high color rendering properties without providing a heat-retaining film at the tube end.
第１図、第２図は本発明による高圧金属蒸気放電灯の発
光管の概略断面構成図である。
１．１′・・・透光性セラミックパイプ、２・・・電極
、３・・・エンドディスク、４・・・排気管。1 and 2 are schematic cross-sectional configuration diagrams of an arc tube of a high-pressure metal vapor discharge lamp according to the present invention. 1.1'... Translucent ceramic pipe, 2... Electrode, 3... End disk, 4... Exhaust pipe.
Claims (1)
、 Ｈｇ 、 Ｘ ｅ ｋ封入し、かつ、上記発光管の
消費電力が１００Ｗ以下である高圧金属蒸気放電灯にお
いて５．上記発光管の管壁負荷をＺ（Ｗ／ｃｎｉ）、上
記発光管エンドの全表面積金５（−）としたとき、８／
Ｚ≦１２としたことを特徴とする高圧金属蒸気放電灯。1. Use translucent ceramic as an arc tube, and store Na inside it
5. In a high-pressure metal vapor discharge lamp which is filled with Hg, Xek, and whose power consumption is 100W or less. When the tube wall load of the arc tube is Z (W/cni) and the total surface area of the arc tube end is gold 5 (-), 8/
A high-pressure metal vapor discharge lamp characterized in that Z≦12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417883A JPS59130061A (en) | 1983-01-17 | 1983-01-17 | High pressure metal-vapor discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417883A JPS59130061A (en) | 1983-01-17 | 1983-01-17 | High pressure metal-vapor discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59130061A true JPS59130061A (en) | 1984-07-26 |
| JPH0443381B2 JPH0443381B2 (en) | 1992-07-16 |
Family
ID=11577452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP417883A Granted JPS59130061A (en) | 1983-01-17 | 1983-01-17 | High pressure metal-vapor discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59130061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790639A1 (en) * | 1996-01-22 | 1997-08-20 | Matsushita Electric Works Ltd | High pressure sodium vapor lamp with high color rendering |
-
1983
- 1983-01-17 JP JP417883A patent/JPS59130061A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790639A1 (en) * | 1996-01-22 | 1997-08-20 | Matsushita Electric Works Ltd | High pressure sodium vapor lamp with high color rendering |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0443381B2 (en) | 1992-07-16 |
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