JPH0279356A - Incandescent lamp - Google Patents
Incandescent lampInfo
- Publication number
- JPH0279356A JPH0279356A JP23044888A JP23044888A JPH0279356A JP H0279356 A JPH0279356 A JP H0279356A JP 23044888 A JP23044888 A JP 23044888A JP 23044888 A JP23044888 A JP 23044888A JP H0279356 A JPH0279356 A JP H0279356A
- Authority
- JP
- Japan
- Prior art keywords
- glass bulb
- visible light
- reflecting film
- frosting
- refractive index
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 44
- 238000010030 laminating Methods 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052721 tungsten Inorganic materials 0.000 abstract description 2
- 239000010937 tungsten Substances 0.000 abstract description 2
- 239000012466 permeate Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052743 krypton Inorganic materials 0.000 description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は中心部にフィラメントを封装したガラスバルブ
の外面に可視光透過赤外線反射膜を設けた白熱電球に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an incandescent light bulb comprising a glass bulb with a filament sealed in the center and a visible light transmitting infrared reflective film provided on the outer surface of the glass bulb.
従来の技術
中心部にフィラメントを封装したガラスバルブの外面に
、高屈折率層と低屈折率層とを交互に積層してなる可視
光透過赤外線反射膜を設けて、フィラメントから放射さ
れた光のうちの赤外線のみを選択的に反射することによ
り、フィラメントに帰還させて発光効率を向上させた白
熱電球が開発されている。Conventional technology At the center of the glass bulb is a filament sealed with a visible light transmitting and infrared reflecting film, which is made of alternating layers of high refractive index and low refractive index layers, and is provided on the outer surface of the glass bulb. Incandescent light bulbs have been developed that improve luminous efficiency by selectively reflecting only infrared rays and returning them to the filament.
発明が解決しようとする課題
この電球は高効率で、しかも放射光中の赤外線が少ない
利点がある。しかしながら、この白熱電球を反射鏡と組
み合わせて用いると被照射面にフィラメントの光学像が
生じ、照度分布が不均一となり見苦しいという欠点があ
る。Problems to be Solved by the Invention This light bulb has the advantage of high efficiency and less infrared radiation in the emitted light. However, when this incandescent lamp is used in combination with a reflecting mirror, an optical image of the filament is generated on the irradiated surface, resulting in uneven illuminance distribution and an unsightly appearance.
本発明は赤外線放射量の減少と照度分布の均一化と高効
率化を同時に達成できる白熱電球を提供することを目的
とするものである。An object of the present invention is to provide an incandescent light bulb that can reduce the amount of infrared radiation, make the illuminance distribution uniform, and increase efficiency at the same time.
課題を解決するための手段
本発明の白熱電球は、フィラメントと、このフィラメン
トを中心部に封装したガラスバルブと、このガラスバル
ブの外面に形成された高屈折率層と低屈折率層とを交互
に積層してなる可視光透過赤外線反射膜とを備え、前記
ガラスバルブの内面にフロスティングが施されているも
のである。Means for Solving the Problems The incandescent light bulb of the present invention comprises a filament, a glass bulb in which the filament is sealed in the center, and alternating high refractive index layers and low refractive index layers formed on the outer surface of the glass bulb. and a visible light transmitting and infrared reflecting film laminated on the glass bulb, and frosting is applied to the inner surface of the glass bulb.
作用
本発明によるとガラスバルブの内面にフロスティングを
施すことによって、ガラスバルブの外面に設けられた可
視光透過赤外線反射膜を透過する光を拡散することがで
きるので、所期の目的の照度分布の均一化と赤外線放射
量の減少と高効率化を達成することができる。According to the present invention, by applying frosting to the inner surface of the glass bulb, it is possible to diffuse the light that passes through the visible light transmitting and infrared reflecting film provided on the outer surface of the glass bulb, so that the desired illuminance distribution can be achieved. It is possible to achieve uniformity of the energy consumption, reduction of the amount of infrared radiation, and high efficiency.
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図において、１は透明石英ガラスからなるガラスバ
ルブ、２はこのガラスバルブの外面に形成された可視光
透過赤外線反射膜、３はガラスバルブ１の内面に施され
たフロス、ティング、４はガラスバルブ１の端部を圧着
封止してなる封止部、５は封止部４内に埋設されたモリ
ブデン箔、６はモリブデン箔５に各々接続されてガラス
バルブ１内に導入された２本の内部線、７は２本の内部
線６間に装架されたタングステンコイルからなるフィラ
メント、８はフィラメント７を支持しているアンカ、９
はモリブデン箔５に各々電気的に接続されて封止部４か
ら外部に導出された外部線をそれぞれ示す。そして、ガ
ラスバルブ１内にはクリプトンなどの不活性ガスととも
に微量のハロゲンが封入されている。In FIG. 1, 1 is a glass bulb made of transparent quartz glass, 2 is a visible light transmitting and infrared reflecting film formed on the outer surface of the glass bulb, 3 is a floss or ting applied to the inner surface of the glass bulb 1, and 4 is a A sealing part formed by crimping and sealing the end of the glass bulb 1, 5 a molybdenum foil embedded in the sealing part 4, and 2 each connected to the molybdenum foil 5 and introduced into the glass bulb 1. The internal wire of the book, 7 is a filament made of a tungsten coil installed between two internal wires 6, 8 is an anchor supporting the filament 7, 9
1 and 2 show external wires electrically connected to the molybdenum foil 5 and led out from the sealing part 4, respectively. A trace amount of halogen is sealed inside the glass bulb 1 along with an inert gas such as krypton.
上記可視光透過赤外線反射膜２は、第２図に模型的に拡
大して示すように、ガラスバルブ１の外面に酸化チタン
からなる高屈折率層２１とシリカからなる低屈折率層２
２とを６〜１２層交互に積層したものからなり、光の干
渉を利用して光のうち、近赤外線成分のみを選択的に反
射するものである。As shown schematically and enlarged in FIG. 2, the visible light transmitting infrared reflecting film 2 includes a high refractive index layer 21 made of titanium oxide and a low refractive index layer 2 made of silica on the outer surface of the glass bulb 1.
It consists of 6 to 12 layers of 2 and 2 alternately laminated, and utilizes light interference to selectively reflect only the near-infrared component of the light.
次に、かかる白熱電球の製造方法の一列を述べる。Next, a series of methods for manufacturing such an incandescent light bulb will be described.
石英管の一端を成形し、その先端に排気管を接続したガ
ラスバルブ１を作製し、このガラスバルブをサンドブラ
スト機１０のホルダ１１にセットする。サンドブラスト
機１０のノズル１２はガラスバルブ１の軸に対して角度
θが１０〜２０度になるようセットされている。サンド
のメツシュは１００〜２００とし、流速はガラスバルブ
１が３回転したときにガラスバルブ１の内面が十分にフ
ロスティングされる程度に調節する。フロスティングさ
れたガラスバルブ１は１０％程度の弗酸で洗浄したのち
、水洗いされる。A glass bulb 1 is manufactured by molding one end of a quartz tube and connecting an exhaust pipe to the tip thereof, and this glass bulb is set in a holder 11 of a sandblasting machine 10. The nozzle 12 of the sandblasting machine 10 is set at an angle θ of 10 to 20 degrees with respect to the axis of the glass bulb 1. The sand mesh is 100 to 200, and the flow rate is adjusted to such an extent that the inner surface of the glass bulb 1 is sufficiently frosted when the glass bulb 1 rotates three times. The frosted glass bulb 1 is washed with about 10% hydrofluoric acid and then with water.
可視光透過赤外線反射膜２は内面にフロスティングされ
たガラスバルブ１の外面に形成する。この形成方法は種
々知られているが、−例をあげれば次のとおりである。The visible light transmitting and infrared reflecting film 2 is formed on the outer surface of the glass bulb 1 whose inner surface is frosted. Various methods for this formation are known, and examples are as follows.
まず、ガラスバルブ１の外面にテトライソプロピルチタ
ネートなどの有機金属化合物を所定の厚さに塗布して乾
燥し、焼成してこれら金属の酸化物からなる高屈折率層
２１を形成する。つづいて、この層の表面にエチルシリ
ケートなどの他の有機金属化合物を所定の厚さに塗布し
て乾燥し、焼成してこれら金属の酸化物からなる低屈折
率層２２を形成する。このようにして高屈折率層２１と
低屈折率層２２とを交互に形成して可視光透過赤外線反
射膜２に構成する。なお、ガラスバルブ１の封止部４と
なる部分、およびその近傍には可視光透過赤外線反射膜
２を形成−５＝
しない。これはフィラメント７を含むマウントをガラス
バルブ１に封止する際にバーナの炎によって可視光透過
赤外線反射膜２が焼かれ、白く失透して見苦しくなるの
を防止するためである。First, an organometallic compound such as tetraisopropyl titanate is applied to the outer surface of the glass bulb 1 to a predetermined thickness, dried, and fired to form a high refractive index layer 21 made of oxides of these metals. Subsequently, another organometallic compound such as ethyl silicate is applied to the surface of this layer to a predetermined thickness, dried, and fired to form a low refractive index layer 22 made of oxides of these metals. In this way, the high refractive index layer 21 and the low refractive index layer 22 are alternately formed to form the visible light transmitting infrared reflective film 2. Note that the visible light transmitting infrared reflecting film 2 is not formed on the portion of the glass bulb 1 that will become the sealing portion 4 and in the vicinity thereof. This is to prevent the visible light transmitting and infrared reflecting film 2 from being burned by the flame of the burner when the mount including the filament 7 is sealed in the glass bulb 1, and becoming white and devitrified, making it unsightly.
フィラメント７を含むマウントはガラスバルブ１に封止
されるが、その際にバーナの炎によって可視光透過赤外
線反射膜２が焼かれ、白く失透して見苦しくなるのを防
止するため、ガラスバルブ１の上に石英製の保護カバー
をかぶせて封止を行う。封止済ランプは排気され、その
中にクリプトンなどの不活性ガスとともに微量のハロゲ
ン化合物が封入される。The mount including the filament 7 is sealed in the glass bulb 1, but in order to prevent the visible light transmitting infrared reflective film 2 from being burned by the flame of the burner and becoming white and devitrified and unsightly, the glass bulb 1 is sealed. A protective cover made of quartz is placed over it to seal it. The sealed lamp is evacuated, and a trace amount of a halogen compound is sealed inside along with an inert gas such as krypton.
次に、本発明の実施例電球の作用を説明する。Next, the operation of the light bulb according to the embodiment of the present invention will be explained.
２本の外部線９間に通電すると、フィラメント７は白熱
して光を放射する。この光はガラスバルブ１内面のフロ
スティングによって拡散されたのち、ガラスバルブ１の
外面に形成された可視光透過赤外線反射膜２を透過する
。この膜により光のうちの近赤外線成分のみが選択的に
反射されるので、可視光透過赤外線反射膜２を透過した
光は赤外線成分が減少する。また、可視光はガラスバル
ブ１内面のフロスティングによって拡散され、可視光透
過赤外線反射膜２を透過してくるので、可視光は拡散光
となる。When electricity is applied between the two external wires 9, the filament 7 becomes incandescent and emits light. This light is diffused by the frosting on the inner surface of the glass bulb 1, and then passes through the visible light transmitting and infrared reflecting film 2 formed on the outer surface of the glass bulb 1. Since only the near-infrared component of the light is selectively reflected by this film, the infrared component of the light transmitted through the visible light transmitting infrared reflecting film 2 is reduced. Furthermore, the visible light is diffused by the frosting on the inner surface of the glass bulb 1 and passes through the visible light transmitting infrared reflective film 2, so that the visible light becomes diffused light.
赤外線はフロスティングによってほとんど拡散しないの
で、プロスティングがない場合と同様にフロスティング
層を通過する。したがって、可視光透過赤外線反射膜２
によって反射された赤外線はフィラメント７に帰還して
発光効率を向上する。Infrared light is hardly diffused by the frosting, so it passes through the frosting layer as if there were no prosting. Therefore, the visible light transmitting infrared reflective film 2
The infrared rays reflected by the filament 7 return to the filament 7 to improve luminous efficiency.
発明の詳細
な説明したように、本発明の白熱電球はガラスバルブの
外面に可視光透過赤外線反射膜を設け、かつ内面にフロ
スティングを施しであるので、ガラスバルブの外面に設
けられた可視光透過赤外線反射膜を透過する光は拡散し
、照度分布の均一化と赤外線放射量の減少と高効率化を
達成することができる。フロスティングはガラスバルブ
の内面に施されているので、外面にフロスティングを施
した場合に比べ発光面積が小さく、投光器にこの電球を
使用した場合、集光性がよい。As described in detail, the incandescent light bulb of the present invention has a visible light transmitting infrared reflecting film on the outer surface of the glass bulb and frosting on the inner surface. The light that passes through the transmissive infrared reflective film is diffused, making it possible to achieve uniform illuminance distribution, a reduction in the amount of infrared radiation, and high efficiency. Since the frosting is applied to the inner surface of the glass bulb, the light emitting area is smaller than when frosting is applied to the outside surface, and when this bulb is used in a floodlight, it has good light-gathering properties.
第１図は本発明の一実施例である白熱電球の一部切欠正
面図、第２図は同じく要部拡大断面図、第３図はガラス
バルブへのフロスティング方法の説明図である。
１・・・・・・ガラスバルブ、２・・・・・・可視光透
過赤外線反射膜、３・・・・・・フロスティング、７・
・・・・・フィラメント、２１・・・・・・高屈折率層
、２２・・・・・・低屈折率層。FIG. 1 is a partially cutaway front view of an incandescent light bulb according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the same essential part, and FIG. 3 is an explanatory diagram of a method of frosting a glass bulb. 1... Glass bulb, 2... Visible light transmitting infrared reflective film, 3... Frosting, 7...
... Filament, 21 ... High refractive index layer, 22 ... Low refractive index layer.
Claims (1)
ガラスバルブと、このガラスバルブの外面に形成された
高屈折率層と低屈折率層とを交互に積層してなる可視光
透過赤外線反射膜とを備え、前記ガラスバルブの内面に
フロステイングが施されていることを特徴とする白熱電
球。It is equipped with a filament, a glass bulb in which the filament is sealed in the center, and a visible light-transmissive infrared reflective film formed by alternately laminating high refractive index layers and low refractive index layers formed on the outer surface of the glass bulb. , an incandescent light bulb characterized in that the inner surface of the glass bulb is frosted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23044888A JPH0279356A (en) | 1988-09-14 | 1988-09-14 | Incandescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23044888A JPH0279356A (en) | 1988-09-14 | 1988-09-14 | Incandescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0279356A true JPH0279356A (en) | 1990-03-19 |
Family
ID=16908043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23044888A Pending JPH0279356A (en) | 1988-09-14 | 1988-09-14 | Incandescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0279356A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0617300A1 (en) * | 1993-03-22 | 1994-09-28 | General Electric Company | Lamp with IR reflecting film and light-scattering coating |
-
1988
- 1988-09-14 JP JP23044888A patent/JPH0279356A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0617300A1 (en) * | 1993-03-22 | 1994-09-28 | General Electric Company | Lamp with IR reflecting film and light-scattering coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2925700B2 (en) | Glass reflector coated with optical interference coating by low pressure chemical vapor deposition | |
| JP3268558B2 (en) | New daylight lamp | |
| JPH0279356A (en) | Incandescent lamp | |
| JP4356097B1 (en) | Lamp having right angle prism in bulb and lighting device using the lamp | |
| JPH0279357A (en) | Incandescent lamp | |
| JPH0521043A (en) | Lighting device | |
| JPH02109250A (en) | Incandescent lamp | |
| JPH0279355A (en) | Incandescent lamp | |
| JPS59157947A (en) | Bulb | |
| JP2001160377A (en) | Tungsten halogen lamp, headlight for automobiles, and illuminator | |
| JPH0458145B2 (en) | ||
| JPH113688A (en) | Reflection type tubular lamp and lighting system | |
| JPH0945295A (en) | Incandescent lamp, reflection type lighting system using same, and vehicle headlight | |
| JP4161235B2 (en) | Bulbs, reflector bulbs and lighting fixtures | |
| JPH09259838A (en) | Tungsten halogen lamp | |
| JPH03192649A (en) | Incandescent lamp | |
| US10008379B1 (en) | Infrared recycling incandescent light bulb | |
| JPH09161731A (en) | Tungsten halogen lamp | |
| JP3026852B2 (en) | Halogen incandescent bulb | |
| JPS644167Y2 (en) | ||
| JPH0256802A (en) | Light source device | |
| JPS61225756A (en) | Tubular type bulb | |
| JPH08273415A (en) | Light source with reflector | |
| JPH04267048A (en) | Lamp and manufacture thereof | |
| JPH01255153A (en) | Halogen electric lamp |