JP3135440B2 - Metal halide lamp - Google Patents
Metal halide lampInfo
- Publication number
- JP3135440B2 JP3135440B2 JP05332582A JP33258293A JP3135440B2 JP 3135440 B2 JP3135440 B2 JP 3135440B2 JP 05332582 A JP05332582 A JP 05332582A JP 33258293 A JP33258293 A JP 33258293A JP 3135440 B2 JP3135440 B2 JP 3135440B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- light
- plate
- metal halide
- arc tube
- 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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明はメタルハライドランプに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal halide lamp.
【０００２】[0002]
【従来の技術】メタルハライドランプは、従来、屋外照
明分野で使用されてきたが、近年になって店舗等の屋内
照明分野で、コンパクトな直管形状のランプが使用され
る機会が増えてきている。2. Description of the Related Art Conventionally, metal halide lamps have been used in the field of outdoor lighting. In recent years, in the field of indoor lighting of stores and the like, the use of compact straight tube lamps has been increasing. .
【０００３】従来のメタルハライドランプとして、２重
構造の透光性筒によって発光管が囲繞され、透光性筒の
両端開口を金属プレートで閉塞し、発光管の両端から導
出したリード線が金属プレートを貫通し、このリード線
がそれぞれのステム線に接続されることによって発光管
を透光性筒内に保持した構造のランプがあった（特開平
２−２３０６５５号公報）。As a conventional metal halide lamp, a light-emitting tube is surrounded by a light-transmitting tube having a double structure, openings at both ends of the light-transmitting tube are closed by metal plates, and lead wires led out from both ends of the light-emitting tube are formed by metal plates. There has been a lamp having a structure in which an arc tube is held in a translucent cylinder by penetrating through the through holes and connecting these lead wires to respective stem wires (Japanese Patent Laid-Open No. 230630/1990).
【０００４】[0004]
【発明が解決しようとする課題】一般に、発光管が高ワ
ットとなるとともに、発光管の重量も大きくなるため、
高ワットのランプでは輸送時や落下時等に発光管に加わ
る衝撃力が大きくなる。したがって、このような従来の
メタルハライドランプを高ワットのランプに用いた場
合、発光管は、その衝撃力に十分に耐えることができ
ず、封止部折れ等を発生することがある。発光管の封止
部の一部を金属プレートに貫通させて、透光性筒の外側
に導出し、その導出した封止部に、一端部がステム線に
接続された支持板の他端部を取り付けることによって、
輸送時や落下時等の衝撃力に耐え得るようにできるが、
これでは発光管封止部の一部を透光性筒の外側に出すこ
とになるために、発光管の温度が低下して十分なランプ
特性を得ることができなくなるという問題があった。In general, the wattage of an arc tube is increased and the weight of the arc tube is increased.
With a high wattage lamp, the impact force applied to the arc tube at the time of transportation or dropping becomes large. Therefore, when such a conventional metal halide lamp is used for a high wattage lamp, the arc tube cannot sufficiently withstand the impact force, and the sealing portion may be broken. A part of the sealing portion of the arc tube is penetrated through the metal plate and led out of the light-transmitting tube, and the derived sealing portion has the other end of the support plate having one end connected to the stem wire. By attaching
It can withstand the impact force during transportation and dropping, etc.
In this case, since a part of the arc tube sealing portion is exposed outside the light-transmitting tube, there is a problem that the temperature of the arc tube is lowered and sufficient lamp characteristics cannot be obtained.
【０００５】本発明は、ランプの特性を低下させること
なく輸送時や落下時等に生じる衝撃に対して強い構造を
有し、かつランプ自体に外管破損防止構造を有するコン
パクトなメタルハライドランプを提供することを目的と
するものである。[0005] The present invention provides a compact metal halide lamp having a structure that is strong against impacts generated during transportation or dropping without deteriorating the characteristics of the lamp, and having a structure for preventing the outer tube from being damaged in the lamp itself. It is intended to do so.
【０００６】[0006]
【課題を解決するための手段】本発明のメタルハライド
ランプは、内部に一対の電極を有し、かつ水銀、始動用
希ガスとともに金属ハロゲン化物が封入された発光部、
および、この発光部の両端部に設けられた封止部を有す
る発光管と、前記発光管全体を囲繞する透光性筒と、前
記透光性筒を保持し、かつ前記透光性筒の両端開口を閉
塞したプレートと、前記発光管、前記透光性筒および前
記プレートを内蔵する外管とを備え、前記発光管は、前
記プレートによって閉塞された前記透光性筒内に位置し
て設けられているとともに、前記プレートは、前記発光
管の軸方向に沿って、かつ前記透光性筒内に延びて相対
向して設けられた弾性板を有し、前記弾性板によって前
記封止部を狭持した構成を有する。A metal halide lamp according to the present invention has a pair of electrodes inside, and a light emitting portion in which a metal halide is sealed together with mercury and a starting rare gas.
A light-emitting tube having sealing portions provided at both ends of the light-emitting portion, a light-transmitting tube surrounding the entire light-emitting tube, and holding the light-transmitting tube; and A plate having both ends closed, and an outer tube containing the light emitting tube, the light-transmitting tube, and the plate, wherein the light emitting tube is
Located in the translucent cylinder closed by the plate.
The plate has an elastic plate extending in the axial direction of the arc tube and in the translucent cylinder and provided to face each other , and the plate is sealed by the elastic plate. It has a configuration in which the stop is held.
【０００７】[0007]
【作用】この構造により、弾性板はその弾性力によって
落下時等に発光管に加わる衝撃から発光管を保護する。
また、封止部を含む発光管全体は透光性筒に囲繞されて
いるため、発光管温度は低下せず良好なランプ特性を得
ることができる。According to this structure, the elastic plate protects the arc tube from an impact applied to the arc tube at the time of a fall or the like by its elastic force.
In addition, since the entire arc tube including the sealing portion is surrounded by the translucent tube, it is possible to obtain good lamp characteristics without lowering the arc tube temperature.
【０００８】[0008]
【実施例】以下に、本発明の実施例を図面を用いて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】本発明の一実施例の２５０Ｗメタルハライ
ドランプを図１に示す。内径１９ｍｍの石英ガラス製の
発光管１は、発光部１ａと封止部１ｂからなり、発光部
１ａの内部には、一対の電極（図示せず）と、始動用希
ガスとして１００００パスカルのアルゴンと２５ｍｇの
水銀の他に、ＴｌＩ１．７ｍｇ，ＤｙＩ3６．２ｍｇ，
ＣｓＩ２．１ｍｇの金属ハロゲン化物が封入されてい
る。発光部１ａの両端部には、電極が封止された封止部
１ｂが設けられている。発光管１は、２重の透光性筒２
によって囲繞され直管形状の外管１５内に内蔵されてい
る。透光性筒２の両端開口は例えばステンレス製の金属
プレート３，４によって閉塞され、かつ透光性筒２は金
属プレート３，４の発光管１の軸方向に沿って設けられ
た舌片５，６により両端部をそれぞれ狭持されている。
金属プレート３，４の端縁には金属プレート３，４の外
方に向かって突出した舌片１３，１４が設けられてお
り、この舌片１３，１４が外管１５の内面に接触して外
管１５内で固定されている。発光管１のリード線は絶縁
体７，８を貫通して透光性筒２の外部でステム線９，１
０にそれぞれ溶接されて接続されている。金属プレート
３，４には、発光管の軸方向に沿って、かつ透光性筒２
内に延びて相対向した弾性板１１，１２がそれぞれ設け
られており、この弾性板１１，１２によって発光管１の
封止部１ｂがそれぞれ狭持されている。なお、１６は口
金である。また、弾性板１１，１２と舌片５，６は切り
起こされて金属プレート３，４に一体成形されている。
さらに、弾性板１１，１２の先端部はくの字形に成形さ
れているため、組立時において、発光管１の封止部１ｂ
を弾性板間に挿入しやすい。FIG. 1 shows a 250 W metal halide lamp according to an embodiment of the present invention. An arc tube 1 made of quartz glass having an inner diameter of 19 mm includes a light emitting portion 1a and a sealing portion 1b. Inside the light emitting portion 1a, a pair of electrodes (not shown) and a 10,000 Pascal argon gas as a starting rare gas are provided. And 25 mg of mercury, 1.7 mg of TlI, 6.2 mg of DyI3,
2.1 mg of metal halide is encapsulated in CsI. At both ends of the light emitting section 1a, a sealing section 1b in which an electrode is sealed is provided. The arc tube 1 is a double translucent tube 2
And is housed in a straight outer tube 15. Both ends of the light-transmitting tube 2 are closed by, for example, metal plates 3 and 4 made of stainless steel, and the light-transmitting tube 2 is provided with tongue pieces 5 provided along the axial direction of the light emitting tube 1 of the metal plates 3 and 4. , 6 at both ends.
Tongue pieces 13, 14 projecting outward from the metal plates 3, 4 are provided at the edges of the metal plates 3, 4, and these tongue pieces 13, 14 come into contact with the inner surface of the outer tube 15. It is fixed inside the outer tube 15. The lead wire of the arc tube 1 penetrates the insulators 7 and 8 and the stem wires 9 and 1 outside the translucent tube 2.
0 are connected by welding. The metal plates 3 and 4 are provided along the axial direction of the arc tube and the transparent tube 2.
Elastic plates 11 and 12 which extend inward and are opposed to each other are provided, and the sealing portions 1b of the arc tube 1 are held by the elastic plates 11 and 12, respectively. Reference numeral 16 denotes a base. The elastic plates 11 and 12 and the tongue pieces 5 and 6 are cut and raised to be integrally formed with the metal plates 3 and 4.
Further, since the distal ends of the elastic plates 11 and 12 are formed in a V-shape, the sealing portion 1b of the arc tube 1 is assembled at the time of assembly.
Can be easily inserted between the elastic plates.
【００１０】落下時に発光管に加わる衝撃力は、重量の
大きな高ワットランプほど大きい。２３０Ｇの衝撃テス
トにおいて、１５０Ｗ以下の小形のメタルハライドラン
プの場合には金属プレートに弾性板のない構造であって
も発光管が損傷することはなかったが、金属プレートに
弾性板のない構造の２５０Ｗのメタルハライドランプの
場合、衝撃テストにおいて発光管の封止部に折れが発生
した。[0010] The impact force applied to the arc tube at the time of dropping is greater for a heavier wattage lamp. In the impact test of 230G, in the case of a small metal halide lamp of 150W or less, the arc tube was not damaged even if the metal plate had no elastic plate, but the 250W had a structure without the elastic plate on the metal plate. In the case of the metal halide lamp, the sealing portion of the arc tube was broken in the impact test.
【００１１】本実施例の２５０Ｗのメタルハライドラン
プを１０本製作し、同様な衝撃テストを行なったとこ
ろ、発光管の封止部折れが生じたものは１本も確認され
ず、発光管の封止部折れを防止することができた。[0011] Ten metal halide lamps of 250 W of this embodiment were manufactured and subjected to a similar impact test. As a result, no lamp was found to have any breakage in the sealing portion of the arc tube. Part breaks could be prevented.
【００１２】以上のように、本実施例のメタルハライド
ランプは、ランプの特性を低下させることなく輸送時や
落下時等の衝撃に対して強い構造を有するため、衝撃が
加わっても封止部折れ等の不具合が生じることがなく、
また、ランプ自体に外管破損防止構造を有するので、発
光管が破損しても外管が飛散することを防止できる。As described above, the metal halide lamp of this embodiment has a structure that is strong against impacts such as during transportation and dropping without deteriorating the characteristics of the lamps. Without any problems such as
Further, since the lamp itself has the outer tube damage preventing structure, even if the arc tube is damaged, the outer tube can be prevented from scattering.
【００１３】[0013]
【発明の効果】以上説明したように、本発明によれば、
ランプの特性を低下させることなく輸送時や落下時等の
衝撃に対して強い構造を有し、また、ランプ自体に外管
破損防止構造を有するメタルハライドランプを得ること
ができる。As described above, according to the present invention,
It is possible to obtain a metal halide lamp having a structure that is strong against impacts during transportation or dropping without deteriorating the characteristics of the lamp, and having a structure for preventing the outer tube from being damaged in the lamp itself.
【図１】本発明の一実施例である２５０Ｗのメタルハラ
イドランプの正面図FIG. 1 is a front view of a 250 W metal halide lamp according to an embodiment of the present invention.
【符号の説明】 １ 発光管 １ａ 発光部 １ｂ 封止部 ２ 透光性筒 ３，４ 金属プレート １１，１２ 弾性板[Description of Signs] 1 Arc tube 1a Light emitting portion 1b Sealing portion 2 Translucent cylinder 3, 4 Metal plate 11, 12 Elastic plate
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−230655（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01J 61/50 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-230655 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) H01J 61/50
Claims (1)
動用希ガスとともに金属ハロゲン化物が封入された発光
部、および、この発光部の両端部に設けられた封止部を
有する発光管と、前記発光管全体を囲繞する透光性筒
と、前記透光性筒を保持し、かつ前記透光性筒の両端開
口を閉塞したプレートと、前記発光管、前記透光性筒お
よび前記プレートを内蔵する外管とを備え、前記発光管
は、前記プレートによって閉塞された前記透光性筒内に
位置して設けられているとともに、前記プレートは、前
記発光管の軸方向に沿って、かつ前記透光性筒内に延び
て相対向して設けられた弾性板を有し、前記弾性板によ
って前記封止部を狭持していることを特徴とするメタル
ハライドランプ。1. A light emitting portion having a pair of electrodes inside, a light emitting portion in which a metal halide is sealed together with mercury and a starting rare gas, and sealing portions provided at both ends of the light emitting portion. A tube, a light-transmitting tube surrounding the entire light-emitting tube, a plate holding the light-transmitting tube, and closing both end openings of the light-transmitting tube, the light-emitting tube, the light-transmitting tube, An outer tube incorporating the plate, wherein the arc tube
Is in the translucent cylinder closed by the plate.
And the plate extends along the axial direction of the arc tube and into the translucent cylinder.
Opposed to an elastic plate provided with Te, metal halide lamp characterized in that it sandwiches the sealing portion by the elastic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05332582A JP3135440B2 (en) | 1993-12-27 | 1993-12-27 | Metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05332582A JP3135440B2 (en) | 1993-12-27 | 1993-12-27 | Metal halide lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07192699A JPH07192699A (en) | 1995-07-28 |
| JP3135440B2 true JP3135440B2 (en) | 2001-02-13 |
Family
ID=18256546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05332582A Expired - Fee Related JP3135440B2 (en) | 1993-12-27 | 1993-12-27 | Metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3135440B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002075272A (en) | 2000-08-29 | 2002-03-15 | Matsushita Electric Ind Co Ltd | Metal halide lamp |
| CA2554375A1 (en) * | 2005-10-06 | 2007-04-06 | Osram Sylvania Inc. | Arc tube and shroud holder |
-
1993
- 1993-12-27 JP JP05332582A patent/JP3135440B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07192699A (en) | 1995-07-28 |
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