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JPH0756792B2 - Heater lamp - Google Patents
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JPH0756792B2 - Heater lamp - Google Patents

Heater lamp

Info

Publication number
JPH0756792B2
JPH0756792B2 JP62071373A JP7137387A JPH0756792B2 JP H0756792 B2 JPH0756792 B2 JP H0756792B2 JP 62071373 A JP62071373 A JP 62071373A JP 7137387 A JP7137387 A JP 7137387A JP H0756792 B2 JPH0756792 B2 JP H0756792B2
Authority
JP
Japan
Prior art keywords
coating
heater lamp
film
arc tube
orange
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
Application number
JP62071373A
Other languages
Japanese (ja)
Other versions
JPS63239762A (en
Inventor
敏之 岡本
哲 竹村
雅数 石野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ushio Denki KK
Original Assignee
Ushio Denki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ushio Denki KK filed Critical Ushio Denki KK
Priority to JP62071373A priority Critical patent/JPH0756792B2/en
Publication of JPS63239762A publication Critical patent/JPS63239762A/en
Publication of JPH0756792B2 publication Critical patent/JPH0756792B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は橙色ないしは橙赤色を放射するヒータランプに
関するものである。
TECHNICAL FIELD The present invention relates to a heater lamp that emits orange or orange-red color.

〔従来技術とその問題点〕[Prior art and its problems]

家庭用の暖房器具やオーブンレンジなどの電気製品の熱
源として色温度を低く設計したヒータランプが使用され
ることが多い。これはヒータランプが熱効率が高くて仕
上りが早いなどの利点を有するためである。これらの電
気製品において、熱源としてはヒータランプから放射さ
れる赤外線が利用されるが、ヒータランプからは可視光
も放射する。従って、使用中に白色の可視光が目に入る
と輝度が高いために非常に眩しいという問題点がある。
また、白色の可視光は冷たい感じを与えるために暖房器
具においては好ましくない。
A heater lamp designed to have a low color temperature is often used as a heat source for electric appliances such as household heating appliances and microwave ovens. This is because the heater lamp has advantages such as high thermal efficiency and quick finish. In these electric products, infrared rays emitted from a heater lamp are used as a heat source, but visible light is also emitted from the heater lamp. Therefore, when white visible light enters the eyes during use, it is very dazzling because of the high brightness.
In addition, white visible light gives a cold feeling, which is not preferable in heating appliances.

このため、波長の短い可視光をカットして輝度を低下さ
せて赤色ないし橙赤色のみを透過させ、眩しさを防止す
るとともに視覚的にも温かい感覚ないしは高温で加熱し
ている感覚を与えるようにしている。そして、波長の短
い可視光をカットして赤色を透過させる方法として、従
来は、ヒータランプの発光管に酸化銅をドープした石英
ガラスを使用することが多かった。
Therefore, the visible light with a short wavelength is cut to reduce the brightness and allow only the red or orange-red to pass therethrough to prevent glare and to give a visually warm feeling or a feeling of heating at high temperature. ing. As a method of cutting visible light having a short wavelength and transmitting red light, conventionally, quartz glass doped with copper oxide has often been used for an arc tube of a heater lamp.

しかしながら、石英ガラスに酸化銅をドープするには、
工程が複雑であり、高価なものになっていた。また、酸
化銅のドープに際してはCuOの状態になり易いため、こ
れをCu2Oに還元して赤色を発色している。しかし、ヒー
タランプの点灯は酸化雰囲気で行われるためにCu2Oが使
用中に徐々に酸化されて赤色があせてしまい、性能が低
下する問題点がある。また、酸化銅をドープした石英ガ
ラスは、不透明であるために、ヒータランプを製造する
際に、内部が見えず、作業が非常に行いにくく、不具合
の発見も困難である問題点もある。
However, in order to dope copper oxide with copper oxide,
The process was complicated and expensive. Further, when doped with copper oxide, it tends to be in the state of CuO, so this is reduced to Cu 2 O and a red color is produced. However, since the heater lamp is turned on in an oxidizing atmosphere, Cu 2 O is gradually oxidized during use to give a reddish color, and there is a problem that performance is deteriorated. Further, since the quartz glass doped with copper oxide is opaque, the inside of the quartz glass cannot be seen when manufacturing the heater lamp, and it is very difficult to perform the work, and it is difficult to find a defect.

〔発明の目的〕[Object of the Invention]

そこで本発明は、製造が簡単であって確実に橙色ないし
は橙赤色を放射して輝度が十分に低下するとともに色あ
せることがなくて耐久性に優れ、家庭用の暖房器具やオ
ーブンレンジなどの電気製品の熱源に適したヒータラン
プを提供することを目的とする。
Therefore, the present invention is easy to manufacture and reliably emits orange or orange-red to reduce the brightness sufficiently and does not fade and has excellent durability, and electric appliances such as household heating appliances and microwave ovens. It is an object of the present invention to provide a heater lamp suitable for a heat source of.

〔発明の構成とその作用〕[Structure of Invention and Its Action]

本発明のヒータランプは、石英ガラス製の発光管の外表
面および/または内表面に、膜厚が0.03〜0.35μmのFe
2O3の被膜が形成され、このFe2O3被膜の上に更に膜厚が
0.1〜1μmのSiO2の被膜が形成されたことを特徴とす
るものである。
The heater lamp according to the present invention is provided with a Fe film having a film thickness of 0.03 to 0.35 μm on the outer surface and / or the inner surface of a quartz glass arc tube.
A film of 2 O 3 is formed, and a further film thickness is formed on this Fe 2 O 3 film.
It is characterized in that a SiO 2 film having a thickness of 0.1 to 1 μm is formed.

すなわち、このFe2O3の被膜は、石英ガラスの表面にFe
のアルコレート溶液をディッピングなどで塗布し、乾燥
後に500℃以上、好ましくは700℃以上で焼成することに
より容易に形成することができる。そして、SiO2の被膜
もSiのアルコレート溶液をFe2O3の被膜の上に塗布し、
同様の操作で形成することができる。従って、簡単に形
成することができるが、Fe2O3の被膜は、波長がおよそ5
00nm以下の光をカットする性質を有するために本発明に
係るヒータランプは橙色ないし橙赤色を放射し、輝度が
低下する。また、この性質は劣化することがなく、Fe2O
3の被膜が硬質なSiO2の被膜で覆われているので、傷が
ついたり剥離しにくく、耐久性に優れている。更には、
これらの被膜は半透明であって光沢があり、ヒータラン
プを製造する際に内部が見えるので、製造が容易であ
り、光沢のために商品価値も向上する。
In other words, this Fe 2 O 3 coating forms Fe on the surface of quartz glass.
It can be easily formed by applying the alcoholate solution of (3) by dipping or the like, drying and baking at 500 ° C. or higher, preferably 700 ° C. or higher. Then, as for the SiO 2 film, the Si alcoholate solution is applied on the Fe 2 O 3 film,
It can be formed by a similar operation. Therefore, although it can be easily formed, a film of Fe 2 O 3 has a wavelength of about 5
Since the heater lamp according to the present invention emits orange or orange red due to its property of cutting light of 00 nm or less, the brightness is lowered. In addition, this property does not deteriorate and Fe 2 O
Since the coating of 3 is covered with a hard coating of SiO 2 , it is not easily scratched or peeled off, and has excellent durability. Furthermore,
These coatings are semi-transparent and glossy, and the inside can be seen when manufacturing the heater lamp, so that they are easy to manufacture, and the glossiness also improves the commercial value.

〔実施例〕〔Example〕

以下に図面に示す実施例に基いて本発明を具体的に説明
する。
The present invention will be specifically described below based on the embodiments shown in the drawings.

第1図は「こたつ」用の熱源として使用されるヒータラ
ンプであって定格が100V−400Wの白熱電球を示す。発光
管1は外径が10mmφの石英ガラス管であり、その両端が
圧着封止部2であるが、この圧着封止部2にはモリブデ
ン箔3が封止されている。発光管1の軸線に沿って発光
フィラメント4が配置されてその両端はそれぞれモリブ
デン箔3に接続されており、圧着封止部2から外部に伸
びるリード線5,5に通電するとヒータランプは発光す
る。そして、発光管1の外表面には、便宜上点線で示す
被膜6が形成されているが、この被膜6は、第2図に示
すように、発光管1の外表面に、先ず、Fe2O3被膜61が
形成され、このFe2O3被膜61の上にSiO2被膜62が形成さ
れた二重層である。
FIG. 1 shows an incandescent lamp with a rating of 100V-400W, which is a heater lamp used as a heat source for "Kotatsu". The arc tube 1 is a quartz glass tube having an outer diameter of 10 mmφ, and both ends thereof are pressure-bonding sealing parts 2. Molybdenum foil 3 is sealed in the pressure-bonding sealing parts 2. The luminous filament 4 is arranged along the axis of the arc tube 1 and both ends thereof are connected to the molybdenum foil 3, respectively, and the heater lamp emits light when the lead wires 5, 5 extending from the pressure-sealing portion 2 to the outside are energized. . Then, on the outer surface of the arc tube 1, for convenience but coating 6 indicated by dotted lines are formed, the coating film 6, as shown in FIG. 2, the outer surface of the arc tube 1, first of all, Fe 2 O A three- layer coating 61 is formed, and a SiO 2 coating 62 is formed on the Fe 2 O 3 coating 61 to form a double layer.

ここで、この被膜6の形成方法を説明すると、まず、発
光管1の外表面をイソプロピルアルコールで超音波洗浄
を行う。そして、Fe2O3換算で濃度3%のFeのアルコレ
ート溶液に発光管1をディッピングして約50cm/minの速
度で引き上げる。これによってFeのアルコレート溶液が
発光管1の外表面に付着するが、これを150℃で10分間
乾燥する。次に、これを700℃で10分間焼成するとFe2O3
の被膜61が形成される。そして、以上の工程を数回繰り
返して被膜61の膜厚を所定の厚さにするが、この厚さは
0.03〜0.35μmの範囲にする。0.03μm以下では波長が
500μm以下の光の透過率が高くて輝度が十分に低下し
ない。逆に、0.35μm以上にすると、逆に輝度が低くな
り過ぎ、暖かさなどを視覚にも訴える家庭用電気製品用
光源としては不適当である。また、被膜61が剥離しやす
くなり、更には形成工程が多くなって無駄である。次
に、この発光管1を、SiO2換算で濃度5%のSiのアルコ
レート溶液にディッピングし、同様の操作で膜厚が0.1
〜1μmのSiO2被膜62を形成する。膜厚が0.1μm以下
では、Fe2O3の被膜61を保護するのに十分な強度が得ら
れず、1μm以上では被膜62が剥離しやすくなり、ま
た、形成工程が多くなって無駄である。このように、被
膜6は、アルコレート溶液にディッピングし、乾燥およ
び焼成操作のみによって形成することができるので、工
程が非常に簡単である。そして、この被膜6は、薄橙色
を帯びた半透明であり、光沢が豊かである。従って、ヒ
ータランプを製造する際に発光管1の内部が見えるの
で、発光フィラメント4を発光管1の管軸に正確に配置
することなどが容易になり、もし組立工程で不具合があ
っても簡単に見出すことができるなどの利点があり、ま
た、光沢が豊かであるために、商品価値も向上する。
Here, the method of forming the coating film 6 will be described. First, the outer surface of the arc tube 1 is ultrasonically cleaned with isopropyl alcohol. Then, the arc tube 1 is dipped in an Fe alcoholate solution having a concentration of 3% in terms of Fe 2 O 3 and pulled up at a speed of about 50 cm / min. This causes the alcoholate solution of Fe to adhere to the outer surface of the arc tube 1, which is dried at 150 ° C. for 10 minutes. Next, this was baked at 700 ° C for 10 minutes to produce Fe 2 O 3
Coating 61 is formed. Then, the above steps are repeated several times to make the film thickness of the coating film 61 to a predetermined value.
The range is 0.03 to 0.35 μm. Below 0.03 μm the wavelength is
The transmittance of light of 500 μm or less is high and the brightness is not sufficiently reduced. On the other hand, when the thickness is 0.35 μm or more, the brightness becomes too low, which is unsuitable as a light source for household electric appliances that visually appeals for warmth. In addition, the coating 61 is easily peeled off, and the number of forming steps is increased, which is wasteful. Next, this arc tube 1 was dipped in a Si alcoholate solution having a concentration of 5% in terms of SiO 2 , and a film thickness of 0.1 was obtained by the same operation.
A SiO 2 coating 62 of ˜1 μm is formed. When the film thickness is 0.1 μm or less, sufficient strength to protect the Fe 2 O 3 film 61 cannot be obtained, and when the film thickness is 1 μm or more, the film 62 is easily peeled off, and the number of forming steps increases and it is wasteful. . In this way, the coating 6 can be formed by only dipping in an alcoholate solution and drying and firing operations, so the process is very simple. The film 6 is semi-transparent with a light orange color and is rich in gloss. Therefore, since the inside of the arc tube 1 can be seen when manufacturing the heater lamp, it becomes easy to accurately dispose the light emitting filament 4 on the tube axis of the arc tube 1, and even if there is a problem in the assembly process, it is easy. Can be found in, and because of its rich luster, the commercial value is also improved.

なお、本実施例では、発光管1の外表面に被膜6を形成
する例を示したが、両端を封止する前にディッピングし
て内表面にも、あるいは内表面のみに被膜6を形成して
も良い。
In this example, the coating 6 is formed on the outer surface of the arc tube 1. However, the coating 6 is formed on the inner surface or only on the inner surface by dipping before sealing both ends. May be.

しかして、発光管1の外表面にFe2O3の被膜61の厚さが
0.05μm、SiO2被膜62の厚さも0.05μmの被膜6を形成
したヒータランプを点灯し、分光透過率を調べたが、そ
の結果、波長が500nm以下の光の透過率は40%以下であ
り、500〜700nmの範囲で上昇して700nmでは約80%であ
った。したがって、波長の短い可視光がカットされて橙
色ないしは橙赤色のみが放射されるとともに輝度が低下
するが、このときの色温度は約2100Kであった。従っ
て、この発光管1を用いたヒータランプを電気製品の熱
源に使用しても眩しいことがなく、視覚的にも温かい感
覚ないしは高温で加熱している感覚を与えることができ
る。そして、このヒータランプを5000時間点灯した後
に、発光管1の分光透過率を測定してもほとんど変化が
なく、また、最外層が硬質なSiO2被膜62で覆われている
ので、傷がついたり剥離したりせず、様々な条件下で使
用される家庭用電気製品の熱源として十分な耐久性を有
することが確認できた。
The thickness of the Fe 2 O 3 coating 61 on the outer surface of the arc tube 1
The heater lamp on which the coating 6 having a thickness of 0.05 μm and the thickness of the SiO 2 coating 62 of 0.05 μm was formed was turned on, and the spectral transmittance was examined. As a result, the transmittance of light having a wavelength of 500 nm or less was 40% or less. , Increased in the range of 500 to 700 nm, and was about 80% at 700 nm. Therefore, visible light with a short wavelength is cut off and only orange or orange-red is radiated, and the brightness is lowered, but the color temperature at this time was about 2100K. Therefore, even if the heater lamp using the arc tube 1 is used as a heat source of an electric product, it is not dazzling, and it is possible to give a visually warm feeling or a feeling of heating at a high temperature. After the heater lamp is turned on for 5000 hours, there is almost no change even if the spectral transmittance of the arc tube 1 is measured, and since the outermost layer is covered with the hard SiO 2 coating 62, it is scratched. It was confirmed that it did not peel off or peel off, and it has sufficient durability as a heat source for household electric appliances used under various conditions.

〔発明の効果〕〔The invention's effect〕

以上説明したように、本発明のヒータランプは、石英ガ
ラス製の発光管の外表面および/または内表面に、膜厚
が0.03〜0.35μmのFe2O3の被膜が形成され、このFe2O3
被膜の上に更に膜厚が0.1〜1μmのSiO2の被膜が形成
されているので、製造が簡単であって確実に橙色ないし
は橙赤色を放射するとともに輝度が十分に低下する。従
って、視覚的に温かい感覚を与えて防眩効果が高く、大
きな耐久性が要求される家庭用の暖房器具やオーブンレ
ンジなどの電気製品の熱源に適したヒータランプとする
ことができる。
As described above, the heater lamp of the present invention, the outer surface and / or inner surface of a quartz glass arc tube, thickness coating of Fe 2 O 3 of 0.03~0.35μm is formed, the Fe 2 O 3
Since a SiO 2 film having a film thickness of 0.1 to 1 μm is further formed on the film, it is easy to manufacture and radiates orange or orange-red color surely and the brightness is sufficiently lowered. Therefore, it is possible to provide a heater lamp suitable for a heat source of electric appliances such as household heating appliances and microwave ovens, which are required to have a visually durable warmth, a high antiglare effect, and high durability.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明実施例の断面図、第2図は要部の拡大断
面図を示す。 1…発光管、2…圧着封止部 3…モリブデン箔、4…発光フィラメント 5…リード線、6…被膜 61…Fe2O3被膜、62…SiO2被膜
FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of an essential part. DESCRIPTION OF SYMBOLS 1 ... Arc tube, 2 ... Pressure sealing part 3 ... Molybdenum foil, 4 ... Light emitting filament 5 ... Lead wire, 6 ... Coating 61 ... Fe 2 O 3 coating, 62 ... SiO 2 coating

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭54−38687(JP,A) 特公 昭46−592(JP,B1) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 54-38687 (JP, A) JP 46-592 (JP, B1)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】石英ガラス製の発光管の外表面および/ま
たは内表面に、膜厚が0.03〜0.35μmのFe2O3の被膜が
形成され、このFe2O3被膜の上に更に膜厚が0.1〜1μm
のSiO2の被膜が形成されたことを特徴とするヒータラン
プ。
1. A Fe 2 O 3 coating having a film thickness of 0.03 to 0.35 μm is formed on the outer surface and / or the inner surface of a quartz glass arc tube, and a further film is formed on the Fe 2 O 3 coating. Thickness is 0.1-1 μm
A heater lamp having a SiO 2 coating formed thereon.
JP62071373A 1987-03-27 1987-03-27 Heater lamp Expired - Lifetime JPH0756792B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62071373A JPH0756792B2 (en) 1987-03-27 1987-03-27 Heater lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62071373A JPH0756792B2 (en) 1987-03-27 1987-03-27 Heater lamp

Publications (2)

Publication Number Publication Date
JPS63239762A JPS63239762A (en) 1988-10-05
JPH0756792B2 true JPH0756792B2 (en) 1995-06-14

Family

ID=13458635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62071373A Expired - Lifetime JPH0756792B2 (en) 1987-03-27 1987-03-27 Heater lamp

Country Status (1)

Country Link
JP (1) JPH0756792B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116649A (en) * 1989-09-29 1991-05-17 Ushio Inc Heater lamp
DE10341502A1 (en) * 2003-09-05 2005-03-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Infrared reflector and infrared radiator with an infrared reflector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53153388U (en) * 1977-05-09 1978-12-02
JPS5438687A (en) * 1977-09-02 1979-03-23 Toshiba Corp Incandescent lamp

Also Published As

Publication number Publication date
JPS63239762A (en) 1988-10-05

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