JPH0464141B2 - - Google Patents
Info
- Publication number
- JPH0464141B2 JPH0464141B2 JP58184959A JP18495983A JPH0464141B2 JP H0464141 B2 JPH0464141 B2 JP H0464141B2 JP 58184959 A JP58184959 A JP 58184959A JP 18495983 A JP18495983 A JP 18495983A JP H0464141 B2 JPH0464141 B2 JP H0464141B2
- Authority
- JP
- Japan
- Prior art keywords
- filament
- bulb
- coil
- eccentricity
- life
- 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 - Lifetime
Links
- 229910052736 halogen Inorganic materials 0.000 claims description 12
- 150000002367 halogens Chemical class 0.000 claims description 12
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は長寿命にしたハロゲン電球に関する。[Detailed description of the invention] [Technical field of invention] The present invention relates to a halogen light bulb with a long life.
本件出願人は先に管形ガラスバルブの内外両面
のうち少なくとも一方に可視光透過赤外線反射膜
を形成し、かつバルブの中心線に位置してコイル
フイラメントを封装してなるハロゲン電球を提案
した。
The applicant has previously proposed a halogen light bulb in which a visible light transmitting infrared reflective film is formed on at least one of the inner and outer surfaces of a tubular glass bulb, and a coil filament is enclosed at the center line of the bulb.
この電球はフイラメントから放射された光のう
ち可視光を外部に放射し、赤外線を反射膜によつ
て反射してフイラメントに帰還させてこれを加熱
することによつてフイラメントの発光効率を向上
したものである。 This light bulb improves the luminous efficiency of the filament by emitting visible light out of the light emitted from the filament, and reflecting infrared rays by a reflective film and returning them to the filament to heat it. It is.
定格寿命に比較して著しく短寿命の電球が多発
し、製造作業を入念にし、かつ規格通りの部品を
吟味して使用したが解決できなかつた。
Many light bulbs had a significantly shorter lifespan than the rated lifespan, and despite careful manufacturing work and the use of parts that meet the specifications, the problem could not be resolved.
本発明は高効率長寿命の管形ハロゲン電球を提
供することを目的とする。
The object of the present invention is to provide a tubular halogen light bulb with high efficiency and long life.
管形バルブの内外両面のうち少なくとも一方に
可視光透過赤外線反射膜を形成し、バルブ内にコ
イルフイラメントを管軸方向に沿い、かつ管軸と
コイルフイラメントの偏心量をｄとし、コイルフ
イラメントの半径をｒとしたときｄを0.2r乃至2r
の範囲で偏心して封装したことにより、フイラメ
ント上の赤外線反射像をぼかすことによつてホツ
トスポツトの連鎖的成長を防止したことである。
A visible light transmitting infrared reflecting film is formed on at least one of the inner and outer surfaces of a tube-shaped bulb, and a coil filament is placed inside the bulb along the tube axis direction, and the eccentricity between the tube axis and the coil filament is d, and the radius of the coil filament is When is r, d is 0.2r to 2r
By enclosing the filament eccentrically within the range of 100 to 1000, the chain growth of hot spots was prevented by blurring the infrared reflection image on the filament.
本発明者はこのハロゲン電球の部品品質、製造
工程、完成後の品質および点灯状態に就いて詳細
な調査を行なつたところ、部品、製造工程および
完成後の品質のいずれにも異状がないにも拘ら
ず、点灯するとフイラメント表面に異状に明るい
点（ホツトスポツトと称する。）が存在するもの
を発見した。そこで、このホツトスポツトの存在
する電球を追跡調査したところ、そのほとんどが
短寿命であることが判明した。そこで、この短寿
命の電球を分解調査したところ、その組立て精度
が極めて良好であることが解り、逆に組立て精度
を雑にすればホツトスポツトを解消できるものと
推測し種々実験したところフイラメント位置を雑
にすることによつてホツトスポツトを解消し、長
寿命の電球が得られた。
The inventor conducted a detailed investigation into the quality of the parts, manufacturing process, quality after completion, and lighting condition of this halogen light bulb, and found that there were no abnormalities in any of the parts, manufacturing process, or quality after completion. Nevertheless, we discovered that when the filament was turned on, there were abnormally bright spots (referred to as hot spots) on the filament surface. A follow-up study of bulbs with hot spots revealed that most of them had short lifespans. So, when we disassembled and investigated this short-life light bulb, we found that its assembly accuracy was extremely good.Conversely, we assumed that the hot spots could be solved by making the assembly accuracy rougher, so we conducted various experiments and found that the filament position was rougher. By doing so, hot spots were eliminated and a long-life bulb was obtained.
以下、本発明の詳細を実施例によつて説明す
る。１は石英ガラスなどの耐熱ガラスからなるＴ
形ガラスバルブ、２はこのバルブ１の外面に形成
された可視光透過赤外線反射膜、３はバルブ１の
基端を圧漬封止してなる封止部、４，４はこの封
止部３内に埋設された１対の導入箔、５，５はこ
れら導入箔４，４に接続してバルブ１内に導入さ
れた１対の内導線、６はこれら内導線５，５間に
装架されたタングステンコイルフイラメント、７
はバルブ１の端部に装着した口金である。そうし
て、バルブ１内にはアルゴンなどの不活性ガスと
ともに所要のハロゲンが封入してある。 Hereinafter, the details of the present invention will be explained with reference to Examples. 1 is T made of heat-resistant glass such as quartz glass
2 is a visible light transmitting and infrared reflecting film formed on the outer surface of the bulb 1; 3 is a sealing portion formed by pressure-sealing the base end of the bulb 1; 4 and 4 are sealing portions 3; A pair of lead-in foils embedded in the valve 1, 5, 5, a pair of inner conductors connected to these lead-in foils 4, 4 and introduced into the valve 1; 6, a pair of inner conductors installed between these inner conductors 5, 5; tungsten coil filament, 7
is a cap attached to the end of the valve 1. Then, the required halogen is sealed inside the bulb 1 along with an inert gas such as argon.
上記赤外線反射膜２は酸化チタンなどからなる
高光屈折率層とシリカなどからなる低光屈折率層
とを７〜９層交互重層したもので、光の干渉によ
つて可視光を透過し、赤外線を反射するものであ
る。 The above-mentioned infrared reflective film 2 is made by alternately layering 7 to 9 layers of high light refractive index layers made of titanium oxide or the like and low light refractive index layers made of silica or the like, and transmits visible light through optical interference and transmits infrared rays. It reflects.
しかして、本発明の特徴は第２図に示すよう
に、フイラメント６がバルブ１内において、その
軸方向に沿い、かつ偏心して位置していることで
ある。しかして、フイラメント６のコイルの外径
を2rとし、フイラメント６のコイルの軸心６０と
バルブ１の軸心１０との距離すなわち偏心量をｄ
とすれば、ｄ＞０でしかもｒと所定の関係にあ
る。 As shown in FIG. 2, the feature of the present invention is that the filament 6 is located eccentrically within the valve 1 along its axial direction. Therefore, the outer diameter of the coil of the filament 6 is 2r, and the distance between the axis 60 of the coil of the filament 6 and the axis 10 of the valve 1, that is, the amount of eccentricity is d.
Then, d>0 and has a predetermined relationship with r.
つぎに、この電球の作用を説明し、併せてｄ＞
０にした理由を説明する。この電球に点灯すれ
ば、フイラメント６は可視光とともに大量の赤外
線を放射する。そうして、可視光は赤外線反射膜
２を透過して外部に放射され、赤外線は赤外線反
射膜２で反射されてフイラメント６に帰還してこ
れを加熱してさらに大量の可視光と赤外線とを放
射させ、この結果電球の発光効率が向上する。 Next, I will explain the function of this light bulb, and also explain d＞
The reason for setting it to 0 will be explained. When this light bulb is lit, the filament 6 emits a large amount of infrared rays along with visible light. Then, the visible light passes through the infrared reflective film 2 and is radiated to the outside, and the infrared light is reflected by the infrared reflective film 2 and returns to the filament 6, where it is heated and further generates a large amount of visible light and infrared light. This increases the luminous efficiency of the bulb.
しかして、ｄ＝０のとき著しく短寿命になる理
由は良く解らないが、おそらく次のとおりと考え
られる。すなわち、フイラメント６はその寸法形
状等に多少の不均一は避けられず、このため、フ
イラメント６の輝度は多少なりとも不均一であ
る。しかして、フイラメント６の直径2rはバルブ
１の直径に比較して小さいので、フイラメント６
とバルブ１すなわち赤外線反射膜２とが完全な同
心円であると、高輝度点から発した赤外線は再び
高輝度点に帰還してこれを加熱し、さらに大量の
赤外線を放射させる。したがつて、高輝度点の温
度は連鎖的に上昇し、他の部位に比較して著しく
高温になり、ホツトスポツトを形成する。そうし
てこのホツトスポツトでは他の部位に比較してタ
ングステンの蒸発は著しく多いにも拘らず、タン
グステンの沈着は他の部位より多くはならない。
この理由によつて、ホツトスポツトにおいてフイ
ラメント６がやせ細り、短寿命になるものと考え
られる。 However, the reason why the life is significantly shortened when d=0 is not well understood, but it is probably as follows. That is, the filament 6 inevitably has some non-uniformity in its size and shape, and therefore the brightness of the filament 6 is somewhat non-uniform. Therefore, since the diameter 2r of the filament 6 is smaller than the diameter of the valve 1, the filament 6
When the bulb 1, that is, the infrared reflecting film 2, are perfectly concentric circles, the infrared rays emitted from the high brightness point return to the high brightness point and heat it, causing it to emit an even larger amount of infrared rays. Therefore, the temperature of the high brightness point increases in a chain reaction, becoming significantly hotter than other parts, forming a hot spot. Although tungsten evaporates at this hot spot significantly more than at other locations, the amount of tungsten deposited is not greater than at other locations.
It is believed that for this reason, the filament 6 becomes thinner at the hot spot and has a shorter lifespan.
これに対し、ｄ＞０にすると、赤外線反射膜２
の像がぼけるので、高輝度点から発した赤外線の
うち高輝度点に帰還する割合いが減少し、このた
めホツトスポツトの温度がそれほど高くならない
ため、タングステンの蒸発量はそれほど多くなら
ず、したがつて寿命が長くなるものと考えられ
る。 On the other hand, when d>0, the infrared reflective film 2
Since the image of the hot spot becomes blurred, the proportion of infrared rays emitted from the bright spot that returns to the bright spot decreases, and as a result, the temperature of the hot spot does not become very high, so the amount of evaporation of tungsten does not increase as much. It is thought that this will lead to a longer lifespan.
しかして、偏心量ｄの適値はフイラメントのコ
イル径2rに関係があり、2rが大きければｄも大き
くなければならない。そこで、ｄをｒの倍数で表
現するのが適当と考えられる。 Therefore, the appropriate value for the amount of eccentricity d is related to the coil diameter 2r of the filament, and if 2r is large, d must also be large. Therefore, it is considered appropriate to express d as a multiple of r.
つぎに、実験によつて偏心量ｄと電球の効率向
上および寿命との関係を調査した。用いた電球は
第１図に示す構造で、定格は100V，100W，1600
ｍで、バルブ１の外径は11mm、フイラメント６
はタングステン製ダブルコイルとし、コイル外径
2rが1.6mm、コイル長が10mm、ターン数が11のも
のを使用した。この結果を第３図および第４図に
示す。両図とも横軸に偏心量ｄをコイル半径ｒの
倍数でとり、第３図の縦軸には電球の効率向上を
％の単位でとり、第４図の縦軸には寿命を時間の
単位でとつたもので、曲線はいずれも相関を示
す。第３図からは、ｄ＝０のとき効率向上が最大
で、ｄ＝2rまでは徐々に低下し、それ以後急激に
低下することが理解できる。これに対し、第４図
からは、ｄ＝０のとき寿命は定格の半分以下であ
り、ｄが大きくなるに従つて寿命が急激に長くな
り、ｄ＝0.2rからｄ＝2rまでの範囲においてほぼ
定格を満足し、ｄがさらに大きくなると寿命が著
しく長くなることが理解できる。この結果から、
ｄは0.2r〜2rの範囲が好ましいことが解る。 Next, the relationship between the amount of eccentricity d and the efficiency improvement and life of the light bulb was investigated through experiments. The light bulb used has the structure shown in Figure 1, and the rating is 100V, 100W, 1600
m, the outer diameter of valve 1 is 11 mm, and filament 6
is a tungsten double coil, and the coil outer diameter is
The 2r used was 1.6 mm, the coil length was 10 mm, and the number of turns was 11. The results are shown in FIGS. 3 and 4. In both figures, the horizontal axis shows the amount of eccentricity d as a multiple of the coil radius r, the vertical axis in Figure 3 shows the efficiency improvement of the light bulb in %, and the vertical axis in Figure 4 shows the life in units of time. All curves show a correlation. From FIG. 3, it can be seen that the efficiency improvement is maximum when d=0, gradually decreases up to d=2r, and then sharply decreases. On the other hand, from Figure 4, when d = 0, the life is less than half of the rating, and as d increases, the life increases rapidly, and in the range from d = 0.2r to d = 2r. It can be seen that the rating is almost satisfied, and as d becomes larger, the life becomes significantly longer. from this result,
It can be seen that d is preferably in the range of 0.2r to 2r.
そうして、他の定格のハロゲン電球においても
同様であつた。さらに、本発明において、複写機
用ハロゲン電球のように、長尺管形バルブ内に複
数のフイラメントを短絡線を介して一列配設した
ハロゲン電球にも適用して同様な効果がある。そ
うして、赤外線反射膜はバルブの内外両面のうち
少なくとも一方に設ければ上述の効果がある。ま
た、フイラメントはシングルコイルでもダブルコ
イルでもよい。 The same was true for halogen bulbs with other ratings. Furthermore, the present invention can also be applied to a halogen light bulb in which a plurality of filaments are arranged in a line via a short-circuit wire in a long tube-shaped bulb, such as a halogen light bulb for copying machines, to obtain similar effects. If the infrared reflecting film is provided on at least one of the inner and outer surfaces of the bulb, the above-mentioned effects can be obtained. Further, the filament may be a single coil or a double coil.
〔発明の効果〕
本発明のハロゲン電球は管形バルブの内外両面
のうち少なくとも一方に可視光透過赤外線反射膜
を形成し、バルブ内にその軸方向に沿いかつ偏心
してコイルフイラメントを封装したのでフイラメ
ントのホツトスポツトの温度を下げることがで
き、この結果高効率長寿命のハロゲン電球を提供
できる。[Effects of the Invention] The halogen light bulb of the present invention has a visible light transmitting infrared reflecting film formed on at least one of the inner and outer surfaces of a tube-shaped bulb, and a coil filament is enclosed in the bulb eccentrically along the axial direction, so that the filament The temperature of the hot spot can be lowered, resulting in a highly efficient and long-life halogen bulb.
第１図は本発明のハロゲン電球の一実施例の断
面図、第２図は同じくフイラメントの偏心を示す
拡大横断面図、第３図はフイラメントの偏心量と
効率向上との相関を示すグラフ、第４図はフイラ
メントの偏心量と寿命との相関を示すグラフであ
る。
１……バルブ、２……赤外線反射膜、６……フ
イラメント、１１……バルブの軸心、６０……フ
イラメントコイルの軸心、ｄ……偏心量、ｒ……
フイラメントコイルの半径。
FIG. 1 is a cross-sectional view of an embodiment of the halogen light bulb of the present invention, FIG. 2 is an enlarged cross-sectional view showing the eccentricity of the filament, and FIG. 3 is a graph showing the correlation between the amount of eccentricity of the filament and improvement in efficiency. FIG. 4 is a graph showing the correlation between the amount of eccentricity of the filament and its life. DESCRIPTION OF SYMBOLS 1... Bulb, 2... Infrared reflective film, 6... Filament, 11... Axis center of valve, 60... Axis center of filament coil, d... Amount of eccentricity, r...
Radius of filament coil.
Claims (1)
少なくとも一方に形成された可視光透過赤外線反
射膜と、上記バルブ内にその管軸方向に沿いかつ
管軸とコイルフイラメントの偏心量をｄとし、コ
イルフイラメントの半径をｒとしたときｄが0.2r
乃至2rの範囲で偏心して封装されたコイルフイラ
メントとを具備したことを特徴とするハロゲン電
球。1. A tube-shaped bulb, a visible light transmitting infrared reflecting film formed on at least one of the inner and outer surfaces of the bulb, and a tube-shaped bulb along the tube axis direction, with the eccentricity between the tube axis and the coil filament being d; When the radius of the coil filament is r, d is 0.2r
A halogen light bulb characterized by comprising a coil filament sealed eccentrically in the range of 2r to 2r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18495983A JPS6077347A (en) | 1983-10-05 | 1983-10-05 | Halogen bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18495983A JPS6077347A (en) | 1983-10-05 | 1983-10-05 | Halogen bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6077347A JPS6077347A (en) | 1985-05-01 |
| JPH0464141B2 true JPH0464141B2 (en) | 1992-10-14 |
Family
ID=16162338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18495983A Granted JPS6077347A (en) | 1983-10-05 | 1983-10-05 | Halogen bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077347A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682565A (en) * | 1979-09-17 | 1981-07-06 | Duro Test Corp | Incandescent lamp |
-
1983
- 1983-10-05 JP JP18495983A patent/JPS6077347A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682565A (en) * | 1979-09-17 | 1981-07-06 | Duro Test Corp | Incandescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6077347A (en) | 1985-05-01 |
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