JPH0447660A - Halogen electric bulb - Google Patents
Halogen electric bulbInfo
- Publication number
- JPH0447660A JPH0447660A JP15205090A JP15205090A JPH0447660A JP H0447660 A JPH0447660 A JP H0447660A JP 15205090 A JP15205090 A JP 15205090A JP 15205090 A JP15205090 A JP 15205090A JP H0447660 A JPH0447660 A JP H0447660A
- Authority
- JP
- Japan
- Prior art keywords
- filament
- light
- glass bulb
- bulb
- focal points
- 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
- 229910052736 halogen Inorganic materials 0.000 title claims description 29
- 150000002367 halogens Chemical class 0.000 title claims description 29
- 239000011521 glass Substances 0.000 claims abstract description 40
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 7
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 9
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical group C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 claims description 6
- 238000007796 conventional method Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は一般照明７店舗照明なとに用いられるハロゲン
電球に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a halogen light bulb used for general lighting, store lighting, and the like.
従来の技術
ハロゲン電球は点光源に近いことや、点灯用の回路が不
必要であることなとの利点を持つことから、一般照明を
はじめ、店舗のスポット照明なとに多く用いられている
。しかし、ハロゲン電球は効率１色温度の点では蛍光灯
と比較すると、かなり見劣りする。この難点を改善する
方法の一つとして、近年多層干渉膜をハロゲン電球に応
用することが盛んに行われてきている。多層干渉膜は光
を選択的に透過または反射する性質を持っており、これ
をガラスバルブの外面に塗布することによりハロゲン電
球の光を制御することができる。Conventional technology Halogen light bulbs have the advantage of being close to a point light source and requiring no lighting circuit, so they are widely used for general lighting as well as spot lighting in stores. However, halogen bulbs are considerably inferior to fluorescent bulbs in terms of efficiency and color temperature. As one method to improve this difficulty, in recent years, the application of multilayer interference films to halogen light bulbs has been actively carried out. A multilayer interference film has the property of selectively transmitting or reflecting light, and by coating it on the outer surface of a glass bulb, it is possible to control the light from a halogen bulb.
また、各層の膜厚を代えることにより、反射または透過
する波長領域を自由に代えることができるので、いろい
ろな光を出すハロゲン電球を得ることができる。Furthermore, by changing the thickness of each layer, the wavelength range that is reflected or transmitted can be freely changed, so it is possible to obtain a halogen light bulb that emits various types of light.
例えばその−例として赤外線反射膜付ハロケン電球があ
る。ハロゲン電球の放射する光のうち７０％以上は赤外
線であり、これが蛍光灯に比へ効率の点で劣っている主
原因である。しかも、被照射物の温度か上昇し材料の劣
化を招くことかあり、店舗、美術館なとの照明には問題
かある。そこで、第４図に示すように、円筒形のガラス
バルブ１−の外面に多層干渉膜２を形成してフィラメン
ｌ−３からの赤外線を反射しガラスバルブ１内に戻すよ
うにしたハロゲン電球が提案されている（特開昭５７−
１２８４５５号公報）。これによれば、被照射物の温度
上昇を抑えるとともに、ガラスバルブ内に戻された赤外
線によりフィラメントを加熱しそのエネルギー量たけ入
力電力の低減を図ることか可能となる。For example, there is a Haloken light bulb with an infrared reflective film. More than 70% of the light emitted by halogen bulbs is infrared rays, which is the main reason why they are inferior to fluorescent bulbs in terms of efficiency. Furthermore, the temperature of the object being irradiated may rise, leading to deterioration of the material, which poses a problem for lighting in stores and museums. Therefore, as shown in FIG. 4, a halogen light bulb is constructed in which a multilayer interference film 2 is formed on the outer surface of a cylindrical glass bulb 1- to reflect infrared rays from the filament 1-3 and return them to the inside of the glass bulb 1. It has been proposed (Japanese Unexamined Patent Publication No. 57-
128455). According to this, it becomes possible to suppress the temperature rise of the object to be irradiated, and to heat the filament with the infrared rays returned into the glass bulb, thereby reducing the input power by the amount of energy.
なお、第４図中、４．５はフィラメント支持体、６はチ
ップオフ部、７はガラスバルブ１の封着部、８は口金を
示す。In FIG. 4, 4.5 is a filament support, 6 is a tip-off part, 7 is a sealing part of the glass bulb 1, and 8 is a cap.
また、他の例として高色温度のハロゲン電球がある。店
舗照明ではスポット照明としてハロゲン電球と全体照明
としての蛍光灯を同時に使うことが多いか、ハロゲン電
球は蛍光灯と比較すると、かなり色温度が低いため、ハ
ロゲン電球の光たけか赤味を帯びて見え違和感を生しる
。このような欠点を改善する方法としても多層干渉膜を
応用するこ表ができる。この電球は多層干渉膜により可
視領域の中の長波長の光、すなわち赤色成分だけを減少
させ、寿命特性を損なうことなく色温度を向上させ蛍光
灯の色に近づけたものである。Another example is a high color temperature halogen bulb. In store lighting, halogen bulbs are often used at the same time for spot lighting and fluorescent bulbs for general lighting, or because halogen bulbs have a much lower color temperature than fluorescent bulbs, the brightness of halogen bulbs may have a reddish tinge. It gives a feeling of discomfort. A multilayer interference film can be applied as a method to improve such drawbacks. This light bulb uses a multilayer interference film to reduce only the long-wavelength light in the visible region, that is, the red component, and improves the color temperature without sacrificing lifespan characteristics, bringing the color closer to that of fluorescent light.
発明が解決しようとする課題
しかし、従来の赤外線反射膜付ハロゲン電球では、フィ
ラメント３から垂直方向に出た光に関しては問題ないが
、斜め方向に出た光はすべてフィラメント３に戻って来
るわけではなくかなりの光か外部に漏れてゆく（第５図
参照）。第５図において、Ａは透過光、Ｂは反射光を示
す。この現象はフィラメントか短いはと顕著にあられれ
、長さか１．５ ｍｍのフィラメントの場合、多層干渉
膜に反射された光のうち５８％（形状係数）しかフィラ
メントに戻ってこない。このため多層干渉膜を赤外線反
射膜として用いた場合、フィラメントの温度かあまり上
昇せず、省電力の効果が期待できない。Problems to be Solved by the Invention However, with the conventional halogen light bulb with an infrared reflective film, there is no problem with the light emitted from the filament 3 in the vertical direction, but not all the light emitted in the diagonal direction returns to the filament 3. However, a considerable amount of light leaks to the outside (see Figure 5). In FIG. 5, A indicates transmitted light and B indicates reflected light. This phenomenon is more noticeable when the filament is short; in the case of a 1.5 mm long filament, only 58% (shape factor) of the light reflected by the multilayer interference film returns to the filament. For this reason, when a multilayer interference film is used as an infrared reflecting film, the temperature of the filament does not rise much, and no power saving effect can be expected.
また、多層干渉膜を斜めに透過した光は垂直に透過した
光とは通過する膜厚に差がでるため、特性か違ってくる
。この影響は特に高色温度電球に応用した場合に大きく
、方向によって色温度の違う光が出てくる結果となる。Furthermore, light that passes through a multilayer interference film diagonally differs from light that passes through it perpendicularly because of a difference in the thickness of the film it passes through, resulting in different characteristics. This effect is particularly large when applied to high color temperature light bulbs, resulting in light with different color temperatures depending on the direction.
この場合もフィラメントが短いほどその影響は大きい。In this case as well, the shorter the filament, the greater the effect.
これが長くなると、垂直に出た光と斜めに出た光とが混
ざり合って色が平均化されるため、色の差は１」立たな
くなる。When this becomes longer, the light emitted vertically and the light emitted diagonally mix and the colors are averaged, so the difference in color becomes less than 1".
上記のように多層干渉膜を短いフィラメントを持つハロ
ゲン電球に適用する場合、フィラメントから出た光の反
射光はフィラメントにできるたけ多く戻し、透過光は多
層干渉膜に対し直角に近くなるようにするほどその効果
は大きくなる。When applying a multilayer interference film to a halogen bulb with a short filament as described above, the reflected light from the filament should be returned to the filament as much as possible, and the transmitted light should be nearly perpendicular to the multilayer interference film. The more the effect becomes greater.
課題を解決するための手段
本発明のハロゲン電球は、ガラスバルブの一端側にチッ
プオフ部を、他端側に封着部をそれぞれ設け、かつ内部
にフィラメントを前記ガラスバルブと同軸方向に設けた
ハロゲン電球において、前記ガラスバルブのうち前記フ
ィラメントか存在する部分の形状を回転楕円体とし、か
つ前記フィラメントが存在しない部分のガラスバルブの
うち前記回転楕円体に連設し前記チップオフ部および前
記封着部側に延びる両部分の形状を円筒形とし、前記フ
ィラメントを前記ガラスバルブの回転楕円体の２つの焦
点の間に配置し、さらに前記回転楕円体の部分の外面に
金属酸化膜からなる多層干渉膜を形成したものである。Means for Solving the Problems The halogen light bulb of the present invention is provided with a chip-off part on one end of the glass bulb and a sealing part on the other end, and a filament is provided inside thereof coaxially with the glass bulb. In the halogen light bulb, the shape of the portion of the glass bulb where the filament is present is a spheroid, and the portion of the glass bulb where the filament is not present is connected to the spheroid, and the tip-off portion and the sealing portion are connected to the spheroid. The shape of both parts extending toward the attachment part side is made into a cylindrical shape, the filament is arranged between the two focal points of the spheroid of the glass bulb, and the outer surface of the part of the spheroid is further coated with a multi-layered metal oxide film. An interference film is formed.
作用
多層干渉膜はガラスバルブの回転楕円体部分の上に形成
されているために、ここで反射された光はすへて２つの
焦点の間に戻ってくる。このため、焦点の間にフィラメ
ントを位置させておくと、フィラメントに戻ってくる光
は増加することとなる。また、フィラメントを斜めに出
た光の透過光と多層干渉膜とのなす角度は直角により近
くなる。Since the working multilayer interference film is formed on the spheroidal part of the glass bulb, the light reflected there returns between the two focal points. Therefore, if the filament is located between the focal points, the amount of light that returns to the filament will increase. Furthermore, the angle between the transmitted light that has exited the filament obliquely and the multilayer interference film becomes closer to a right angle.
実施例
以下、本発明の一実施例について図面を用いて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図に示すように、本発明実施例の／Ｓロケン電球は
ガラスバルブ以外については一般照明６店舗照明なとに
用いられるハロゲン電球（電圧１］０■電力８０Ｗ）と
同様の部品を用いており、ガラスバルブ９の一端側にチ
ップオフ部６を、他端側に封着部７をそれぞれ設け、か
つ内部に長さか１５ｍｍのフィラメント３をガラスバル
ブ９と同軸方向に設けている。そして、ガラスバルブ９
のうちフィラメント３か存在する部分の形状を回転楕円
体１０とし、かつフィラメント３か存在しない部分のガ
ラスバルブのうち回転楕円体１０に連設しチップオフ部
６および封着部７側に延びる両部分の形状を円筒形とし
、フィラメント３をガラスバルブ９の回転楕円体］０の
２つの焦点Ｏの間に配置し、さらに回転楕円体１０の外
面に金属酸化膜からなる多層干渉膜２を形成している。As shown in Fig. 1, the /S Roken light bulb according to the present invention uses the same parts as the halogen light bulb (voltage 1: 0 ■ power: 80 W) used for general lighting, store lighting, etc., except for the glass bulb. A tip-off part 6 is provided at one end of the glass bulb 9, a sealing part 7 is provided at the other end, and a filament 3 having a length of 15 mm is provided inside the glass bulb 9 in the coaxial direction. And glass bulb 9
The shape of the portion of the glass bulb where the filament 3 is present is a spheroid 10, and the shape of the portion of the glass bulb where the filament 3 is not present is connected to the spheroid 10 and extends toward the tip-off portion 6 and the sealing portion 7. The shape of the part is cylindrical, the filament 3 is placed between the two focal points O of the spheroid [0] of the glass bulb 9, and a multilayer interference film 2 made of a metal oxide film is formed on the outer surface of the spheroid 10. are doing.
以上のような構成を有する本発明実施例のハロゲン電
球では、幾可学的な性質として２つの焦点Ｏの間から出
て回転楕円体１０に反射された光は必ず焦点０の間に戻
って来る。つまり、２つの焦点０間にフィラメント３を
置くと、多層干渉膜２による反射光はすへてフィラメン
ト３に戻って来ることとなる。また、その透過光も円筒
形の場合に比へると、透過する角度は直角に近くなる。In the halogen light bulb according to the embodiment of the present invention having the above-described configuration, the geometric property is that the light that exits between the two focal points O and is reflected on the spheroid 10 always returns between the focal points 0. come. In other words, when the filament 3 is placed between the two focal points 0, the light reflected by the multilayer interference film 2 will always return to the filament 3. Furthermore, when compared to the case of a cylindrical shape, the angle at which the transmitted light is transmitted becomes close to a right angle.
例えば、フィラメンｌ−３を５０度の角度で出た光は従
来例では多層干渉膜２を５０度の角度で出て行くのに対
し、本発明の場合は８０度の角度で出て行く。For example, light that exits the filament l-3 at an angle of 50 degrees exits the multilayer interference film 2 at an angle of 50 degrees in the conventional example, but in the case of the present invention, it exits at an angle of 80 degrees.
なお、実験によれば、本発明はフィラメントの長さか２
０ｍを越える場合に特に効果がある。これはフィラメン
トを垂直に出て行く光の比率か多くなるためである。According to experiments, the present invention has a length of filament of 2
This is particularly effective when the distance exceeds 0m. This is because the proportion of light leaving the filament vertically increases.
次に、かかるハロゲン電球の製造方法について説明する
。Next, a method for manufacturing such a halogen light bulb will be explained.
まず、外径１１ｍｍの石英管の一端に外径４ ｍｍの石
英製排気管を接続する。排気管の他端は塞いておく。次
に、回転楕円体部分を形成する。第２図＋ａ＋〜（Ｃ１
にその方法の概略を示す。回転しているガラスバルブ９
の下端から約１０ｍｍ〜３０ｍｍの範囲をガスバーナ１
］で加熱した後、内面が回転楕円体の形状をした２分割
のカーホン製の型］２をガラスバルブ９の外面に当てな
から、ガラスバルブ９の内部に、その開口部にゴム体１
３を介して設けられた導入管１４を通して高圧の窒素ガ
スを流入して圧力をかけ、ガラスバルブ９の加熱された
部分を膨張させることにより回転楕円体部分１０を形成
する。この結果、ガラスバルブ９のうち、加工の施され
ない部分は円筒部分１５となる。First, a quartz exhaust pipe with an outer diameter of 4 mm is connected to one end of a quartz tube with an outer diameter of 11 mm. Close the other end of the exhaust pipe. Next, a spheroid section is formed. Figure 2+a+~(C1
An outline of the method is shown below. rotating glass bulb 9
Gas burner 1 within a range of approximately 10 mm to 30 mm from the bottom edge of
] After heating with a mold made of a two-part carphone whose inner surface is in the shape of a spheroid, place the rubber body 1 in the opening of the glass bulb 9 by applying it to the outer surface of the glass bulb 9.
High-pressure nitrogen gas is introduced through the inlet pipe 14 provided through the glass bulb 3 to apply pressure and expand the heated portion of the glass bulb 9, thereby forming the spheroidal portion 10. As a result, the portion of the glass bulb 9 that is not processed becomes the cylindrical portion 15.
次に、ガラスバルブ９の外面に多層干渉膜２を塗布する
。多層干渉膜２は酸化チタン（ＴｌＯ２）と酸化シリコ
ン（Ｓ ｉ Ｏ２）の層からなっており、これらの層は
ティップ法により形成されている。Next, the multilayer interference film 2 is applied to the outer surface of the glass bulb 9. The multilayer interference film 2 consists of layers of titanium oxide (TlO2) and silicon oxide (S i O2), and these layers are formed by the tip method.
すなわち、有機金属化合物溶液にガラスバルブ９を漬け
て塗布しこれを高温中で熱分解して金属酸化膜を形成す
る。有機化合物溶液はＴｌＯ２としてテトラブチルチタ
ネート（ＴＢＴ） 、Ｓ ｉ０２としてテトラエチルオ
ルソンリケート（以下ＴＥＯ３という）をエタノールに
溶かした溶液を用いた。That is, the glass bulb 9 is immersed in an organometallic compound solution and coated, and then thermally decomposed at a high temperature to form a metal oxide film. As the organic compound solution, tetrabutyl titanate (TBT) was used as TlO2, and a solution of tetraethyl orthosilicate (hereinafter referred to as TEO3) dissolved in ethanol was used as SiO2.
濃度は両者とも２５％である。なお、ＴＥＯＳ溶液中に
は分解を促進するために希塩酸が添加されている。The concentration is 25% in both cases. Note that dilute hydrochloric acid is added to the TEOS solution to promote decomposition.
まず、第２図（Ｃ１のような形状をしたガラスノ＜ルブ
９をＴＢＴ溶液に回転楕円体１０の部分までつけた後、
一定の速度で引き上げる。次に、ガラスバルブ９の回転
楕円体部分１０をエタノールに漬けて排気管なと不要な
部分についた溶液を洗浄する。２００℃で５分間乾燥し
、さらに６００℃で１５分間焼成を行って酸化チタンの
層」二にンリカの層を形成する。このような工程を繰り
返してガラスバルブ９の回転楕円体１０の外面に多層干
渉膜を形成する。層数については赤外線反射膜付／Ｓロ
ゲン電球の場合は８層、高色温度／％ロケン電球の場合
は６層である。各々の場合における各層の膜厚および引
き」二げ速度を第１表および第２表にそれぞれに示す。First, after soaking the glass nozzle 9 shaped as shown in Fig. 2 (C1) in the TBT solution up to the spheroid 10,
Pull up at a constant speed. Next, the spheroidal part 10 of the glass bulb 9 is soaked in ethanol to clean the solution adhering to unnecessary parts such as the exhaust pipe. It is dried at 200°C for 5 minutes and then fired at 600°C for 15 minutes to form a layer of phosphor on the titanium oxide layer. By repeating these steps, a multilayer interference film is formed on the outer surface of the spheroid 10 of the glass bulb 9. Regarding the number of layers, there are 8 layers in the case of an infrared reflective film/S Rogen bulb, and 6 layers in the case of a high color temperature/% Roken bulb. The film thickness and drawing speed of each layer in each case are shown in Tables 1 and 2, respectively.
この後、排気管の先を切断して導通させる。After that, cut the end of the exhaust pipe to make it conductive.
（以 下 余 白）
］
第
表
第
表
次に、ハロゲン電球の製造工程であるが、これは従来の
ハロゲン電球の場合と全く同様である。(Left below) Table 1 Next is the manufacturing process for halogen light bulbs, which is exactly the same as for conventional halogen light bulbs.
すなわち、」１記の多層干渉膜付ガラスバルブ内にフィ
ラメント、フィラメント支持祠を設けた後、ガラスバル
ブの一端部を封着する。排気管を通して真空排気し、内
部にノ＼ロゲンガスおよび希ガスを封入し、排気管を封
止し、チップオフ部６を形成する。最後に、ガラスバル
ブ９の一端部に口金８を取り付けて電球とする。That is, after providing a filament and a filament support shrine in the glass bulb with a multilayer interference film described in item 1, one end of the glass bulb is sealed. The tube is evacuated through the exhaust pipe, the interior is filled with noogen gas and rare gas, and the exhaust pipe is sealed to form the tip-off section 6. Finally, a cap 8 is attached to one end of the glass bulb 9 to form a light bulb.
なお、上記実施例では金属酸化膜として酸化チタンと酸
化シリコンとを用いた例について説明したが、酸化チタ
ンのかわりに、酸化タンタル、酸化ハフニウムを用いて
も同様の効果を得ることができる。In the above embodiment, an example was described in which titanium oxide and silicon oxide were used as the metal oxide film, but the same effect can be obtained by using tantalum oxide or hafnium oxide instead of titanium oxide.
発明の効果
以」二説明したように、本発明によれば、赤外線反射膜
付ハロゲン電球の場合には、従来例ではその省電力率１
０％であったのに対し、省電力率１５％の省電力を実現
することができて、より多くの省電力効果が得られ、ま
た高色温度のノ＼ロゲン電球の場合には、従来例では直
角方向の色温度が４０００に、３０度方向での色温度は
３２００Ｉ〈であったのに対し、本発明では直角方向の
色温度は従来例と同じ４０００ Ｋであるが、３０度方
向の色温度が３８００ Ｋとなり、その差を少なくする
ことができ、人間の目ではその差を全く感しない程度ま
で改善することができ、方向による色の差を少なくする
ことができる。Effects of the Invention As explained in 2, according to the present invention, in the case of a halogen light bulb with an infrared reflective film, the power saving rate is lower than that of the conventional example by 1.
Compared to 0%, we were able to achieve a power saving rate of 15%, resulting in even more power saving effects. In the example, the color temperature in the right angle direction was 4000 and the color temperature in the 30 degree direction was 3200 I, whereas in the present invention, the color temperature in the right angle direction was 4000 K, the same as the conventional example, but the color temperature in the 30 degree direction was 4000 K. The color temperature is 3800 K, and the difference can be reduced to the extent that the difference is not perceptible to the human eye at all, and the difference in color depending on direction can be reduced.
第１図は本発明の一実施例であるノ＼ロゲン電球の正面
図、第２図（ａｌ、 （ｂｌおよび＋Ｃ１は本発明にか
かるガラスバルブの成形方法を説明するだめの図、第３
図は本発明のハロゲン電球の多層干渉膜による反射光お
よび透過光を示す図、第４図は従来例のハロゲン電球の
正面図、第５図は従来例の／％ロゲン電球の多層干渉膜
による反射光および透過光を示す図である。
２・・・・・・多層干渉膜、３・・・・・・フィラメン
ト、６・・・チップオフ部、７・・・・・・封着部、９
・・・・・・ガラスバルブ、］０・・・・・・回転楕円
体。
］ ３
４．６・・フィラメント支Ｊ寺イ本
ｔ・・チップオフ部
７封着部
Ｉ・口金
り・・力゛ラズバルブ
〃 回り楕円イ本
弔
図
（＋２）
弔
図
（ｂ）
（ｅ）
弔
図FIG. 1 is a front view of a halogen light bulb which is an embodiment of the present invention, FIG.
The figure shows reflected light and transmitted light by the multilayer interference film of the halogen light bulb of the present invention, Figure 4 is a front view of the conventional halogen light bulb, and Figure 5 shows the multilayer interference film of the conventional halogen light bulb. FIG. 3 is a diagram showing reflected light and transmitted light. 2... Multilayer interference film, 3... Filament, 6... Chip-off part, 7... Sealing part, 9
...Glass bulb,]0...Spheroid. ] 3 4.6... Filament support J temple A book t... Chip-off part 7 Sealing part I... Mouthpiece... Force ゛Raz bulb〃 Rotating ellipse main funeral drawing (+2) Funeral drawing (b) (e) Funeral map
Claims (1)
部をそれぞれ設け、かつ内部にフィラメントを前記ガラ
スバルブと同軸方向に設けたハロゲン電球において、前
記ガラスバルブのうち前記フィラメントが存在する部分
の形状を回転楕円体とし、かつ前記フィラメントが存在
しない部分のガラスバルブのうち前記回転楕円体に連設
し前記チップオフ部および前記封着部側に延びる両部分
の形状を円筒形とし、前記フィラメントを前記ガラスバ
ルブの回転楕円体の２つの焦点の間に配置し、さらに前
記回転楕円体の部分の外面に金属酸化膜からなる多層干
渉膜を形成したことを特徴とするハロゲン電球。In a halogen light bulb, a chip-off portion is provided at one end of the glass bulb, a sealing portion is provided at the other end, and a filament is provided inside the bulb coaxially with the glass bulb, wherein the filament is present in the glass bulb. The shape of the part is a spheroid, and the shape of both parts of the glass bulb in the part where the filament is not present, which are connected to the spheroid and extend toward the tip-off part and the sealing part, are cylindrical; A halogen light bulb, wherein the filament is arranged between two focal points of a spheroid of the glass bulb, and a multilayer interference film made of a metal oxide film is further formed on the outer surface of the spheroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2152050A JP2892777B2 (en) | 1990-06-11 | 1990-06-11 | Halogen bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2152050A JP2892777B2 (en) | 1990-06-11 | 1990-06-11 | Halogen bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0447660A true JPH0447660A (en) | 1992-02-17 |
| JP2892777B2 JP2892777B2 (en) | 1999-05-17 |
Family
ID=15531955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2152050A Expired - Fee Related JP2892777B2 (en) | 1990-06-11 | 1990-06-11 | Halogen bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892777B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013145764A (en) * | 2013-04-30 | 2013-07-25 | Ushio Inc | Incandescent lamp |
-
1990
- 1990-06-11 JP JP2152050A patent/JP2892777B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013145764A (en) * | 2013-04-30 | 2013-07-25 | Ushio Inc | Incandescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2892777B2 (en) | 1999-05-17 |
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