JP3259301B2 - Halogen bulb with reflector - Google Patents
Halogen bulb with reflectorInfo
- Publication number
- JP3259301B2 JP3259301B2 JP34739191A JP34739191A JP3259301B2 JP 3259301 B2 JP3259301 B2 JP 3259301B2 JP 34739191 A JP34739191 A JP 34739191A JP 34739191 A JP34739191 A JP 34739191A JP 3259301 B2 JP3259301 B2 JP 3259301B2
- Authority
- JP
- Japan
- Prior art keywords
- cover glass
- silicon oxide
- halogen lamp
- reflector
- reflecting mirror
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、反射鏡付きハロゲン電
球に関し、さらに詳しくは、反射鏡の開口を覆うカバー
ガラスの表面に散在する傷により、投射光が散乱するの
を防止して、所定の配光特性が得られるようにした反射
鏡付きハロゲン電球に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a halogen lamp with a reflector, and more particularly to a halogen lamp with a reflector, which prevents projection light from being scattered by scratches scattered on a surface of a cover glass covering an opening of the reflector. The present invention relates to a halogen bulb with a reflecting mirror which can obtain the light distribution characteristics of
【０００２】[0002]
【従来の技術】一般に、反射鏡付きハロゲン電球は、例
えば放物面などからなる反射面を備えた反射鏡にハロゲ
ン電球を一体的に取付けて構成したミラー本体と、この
ミラー本体の前面開口を覆って装着したカバーガラスと
から構成されている。2. Description of the Related Art In general, a halogen lamp with a reflecting mirror is composed of a mirror main body having a halogen lamp integrally mounted on a reflecting mirror having a reflecting surface such as a parabolic surface, and a front opening of the mirror main body. And a cover glass mounted over the cover glass.
【０００３】そして、この反射鏡により所望の配光特性
を形成すると共に、カバーガラスの装着により、ハロゲ
ン電球を保護するようになっている。[0003] A desired light distribution characteristic is formed by the reflecting mirror, and a halogen lamp is protected by mounting a cover glass.
【０００４】一方、上記カバーガラスは、硼珪酸ガラス
等をプレス成形して作られているが、このプレス工程に
おいて傷が付き、特に金型表面と接触するカバーガラス
の表面には、深さ約０．５μｍ程度の微小な傷が散在し
ている。カバーガラスの表面にこのような傷が散在する
と、ハロゲン電球からの光がカバーガラスを透過する
際、この傷により約２％〜５％散乱される。その結果、
設計された配光角以外の部分に光が照射されたり、中心
部の照度が低下するなど配光特性上色々な問題が発生す
る傾向があるのが現状である。On the other hand, the cover glass is formed by press-molding borosilicate glass or the like. However, in the pressing process, the cover glass is scratched, and particularly, the surface of the cover glass which comes into contact with the mold surface has a depth of about Small scratches of about 0.5 μm are scattered. If such scratches are scattered on the surface of the cover glass, the light from the halogen bulb is scattered by about 2% to 5% when passing through the cover glass. as a result,
At present, there is a tendency that various problems occur in light distribution characteristics, such as irradiation of light to a portion other than the designed light distribution angle and a decrease in illuminance at the center.
【０００５】[0005]
【発明が解決しようとする課題】そこで、従来は、微小
砥粒を用いて研磨したり、化学研磨などの除去手段によ
って傷を取除くことにより、投射光の散乱による問題点
を解決していた。しかし、このような手段では、傷を除
去するまでには多大の時間を必要とし、この作業が生産
性向上、コストダウンの大きな隘路になっていた。Therefore, conventionally, the problem of scattering of the projection light has been solved by polishing using fine abrasive grains or removing scratches by removing means such as chemical polishing. . However, such means requires a great deal of time to remove the flaw, and this operation has been a major bottleneck in improving productivity and reducing costs.
【０００６】そこで、本発明の目的は、カバーガラス表
面を研磨することなく投射光の散乱を防止すると共に、
カバーガラスの透過率を高めることができる反射鏡付き
ハロゲン電球を提供することにある。Accordingly, an object of the present invention is to prevent scattering of projection light without polishing the cover glass surface,
It is an object of the present invention to provide a halogen bulb with a reflector that can increase the transmittance of a cover glass.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本発明に係る請求項１の反射鏡付きハロゲン電球で
は、ハロゲン電球と、このハロゲン電球に光学的に対向
して設けられた反射鏡と、表面に厚さ０．２μｍ〜０．
７μｍの酸化シリコンで形成された被膜を有してなり、
前記反射鏡の開口を覆うように設けられたカバーガラス
を具備していることを特徴としている。In order to achieve the above object, a halogen lamp with a reflector according to the present invention according to the first aspect of the present invention includes a halogen lamp and a reflector provided to be optically opposed to the halogen lamp. And a thickness of 0.2 μm to 0.1 μm on the surface .
Having a coating formed of 7 μm silicon oxide,
It is characterized by comprising a cover glass provided so as to cover the opening of the reflecting mirror.
【０００８】請求項２の反射鏡付きハロゲン電球では、
酸化シリコンで形成された被膜を構成する酸化シリコン
の粒度を０．０１μｍ〜０．０２μｍとしたことを特徴
としている。[0008] In the halogen bulb with the reflecting mirror according to the second aspect,
It is characterized in that the particle size of the silicon oxide constituting the film formed of silicon oxide is 0.01 μm to 0.02 μm .
【０００９】[0009]
【作用】本発明の反射鏡付きハロゲン電球においては、
カバーガラスの表面に酸化シリコンで形成された被膜を
設けたので、この酸化シリコン被膜により、傷を埋める
ことができ、表面を平滑化できる。この酸化シリコン被
膜による表面の平滑化は、従来の除去加工による平滑化
と比べて加工時間は大幅に短縮でき、この結果、生産性
を飛躍的に向上させることができる。また、酸化シリコ
ン被膜はカバーガラスより低屈折率なので、カバーガラ
ス全体の透過率を向上でき、傷による投射光の散乱を防
止したことと相俟って、投射光の中心部の照度が増加
し、その結果、配光特性を向上させることができる。In the halogen bulb with a reflector according to the present invention,
Since a film made of silicon oxide is provided on the surface of the cover glass, the silicon oxide film can fill in a flaw and smooth the surface. The smoothing of the surface by the silicon oxide film can greatly reduce the processing time as compared with the smoothing by the conventional removal processing, and as a result, the productivity can be dramatically improved. In addition, since the silicon oxide film has a lower refractive index than the cover glass, the transmittance of the entire cover glass can be improved, and the illuminance at the center of the projected light increases, in combination with preventing scattering of the projected light due to scratches. As a result, the light distribution characteristics can be improved.
【００１０】[0010]
【実施例】以下、添付図面を用いて本発明の実施例を詳
細に説明する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１１】図１は本発明（反射鏡付きハロゲン電球）
の一実施例の断面説明図、図２は図１におけるＡ部拡大
断面説明図である。FIG. 1 shows the present invention (halogen bulb with reflector).
FIG. 2 is an enlarged sectional explanatory view of a portion A in FIG. 1.
【００１２】本発明に係わる反射鏡付きハロゲン電球
は、ハロゲン電球１０を反射鏡２１に取付けたミラー本
体２０の開口２２側に、これを覆うようカバーガラス３
０を設けて構成されており、特に前記カバーガラス３０
は、表面３１に厚さ０．２μｍ〜０．７μｍの酸化シリ
コンで形成された被膜３２を被着してある。In the halogen lamp with a reflector according to the present invention, the cover glass 3 covers the opening 22 side of the mirror body 20 in which the halogen lamp 10 is mounted on the reflector 21 so as to cover the same.
0, and in particular, the cover glass 30
Has a surface 32 coated with a coating 32 made of silicon oxide having a thickness of 0.2 μm to 0.7 μm .
【００１３】さらに詳述すると、ハロゲン電球１０は、
バルブ１１の中にハロゲンを封入した白熱電球であっ
て、フィラメント１２が光軸１３方向に張られた、Ｃ−
８タイプの電球である。そして、アウタリード１４、１
４がバルブ１１から導出され、さらに反射鏡２１から突
出延在している。More specifically, the halogen lamp 10 is
An incandescent lamp in which halogen is sealed in a bulb 11, wherein a filament 12 is stretched in the direction of an optical axis 13,
There are eight types of light bulbs. And, the outer leads 14, 1
4 is led out of the bulb 11 and further projects from the reflecting mirror 21.
【００１４】反射鏡２１は、放物面からなる反射面２３
を備えており、前端側の開口２２周縁に、カバーガラス
３０を支持する支持段部２４が形成されている。また、
反射鏡２１の後端側は径小のネック部２５が形成されて
おり、この部分でセメントによりハロゲン電球１０を支
持固定している。The reflecting mirror 21 has a reflecting surface 23 formed of a paraboloid.
A support step portion 24 for supporting the cover glass 30 is formed on the periphery of the opening 22 on the front end side. Also,
A neck portion 25 having a small diameter is formed at the rear end side of the reflecting mirror 21, and the halogen lamp 10 is supported and fixed by cement at this portion.
【００１５】カバーガラス３０は、従来例において述べ
たと同様に、硼珪酸ガラスからなり、プレス加工により
円盤状に形成され、表面３１には図２に示すように、
０．５μｍ程度の深さの傷３３が散在している。この傷
３３は前述したように、投射光の一部を散乱させ、配光
特性に悪影響を与える。そこで、この悪影響を除くた
め、すなわち傷３３を埋め、表面３１を平滑にするた
め、酸化シリコン（SiO2）で形成された被膜３２が被着
されている。The cover glass 30 is made of borosilicate glass and formed into a disk shape by press working, as described in the conventional example, and has a surface 31 as shown in FIG.
Scratches 33 having a depth of about 0.5 μm are scattered. As described above, the flaw 33 scatters a part of the projection light and adversely affects the light distribution characteristics. Therefore, a coating 32 made of silicon oxide (SiO 2) is applied in order to eliminate this adverse effect, that is, to fill the scratches 33 and smooth the surface 31.
【００１６】この酸化シリコン被膜３２は、本実施例に
おいては、厚さがほぼ０．５μｍに形成されている。な
お、この酸化シリコン被膜３２の厚さは、傷３３の深
さ、大きさなどを考慮して決定されるが、厚さ０．２μ
ｍ〜０．７μｍの範囲が好ましい。これは、０．２μｍ
未満では、酸化シリコン被膜３２が薄すぎて十分な効果
が得られず、０．７μｍを超えるとカバーガラス３０の
透過率に悪影響がでる。また、粒度に付いても傷３３の
深さ、大きさ、有機溶剤における分散の適否などを考慮
して決めるが、傷３３への充填性、表面３１への付着性
などにおいて０．０１μｍ〜０．０２μｍの範囲が好ま
しい。これは０．０１μｍ未満では傷を埋めるのに時間
がかかり、０．０２μｍを超えると、酸化シリコン被膜
３１表面の平滑性が低下する。The silicon oxide film 32 is formed to a thickness of approximately 0.5 μm in this embodiment. The thickness of this silicon oxide film 32, the depth of the flaw 33, is determined by considering the size, thickness 0.2 mu
The range of m to 0.7 μm is preferred. This is 0.2 μm
If the thickness is less than 0.7 μm , a sufficient effect cannot be obtained because the silicon oxide film 32 is too thin. If the thickness exceeds 0.7 μm , the transmittance of the cover glass 30 is adversely affected. The depth of the wound 33 with the granularity, size, but determined in consideration of dispersion suitability in organic solvent, filling of the flaw 33, 0.01 [mu] m ~ in such adhesion to the surface 31 A range of 0.02 μm is preferred. If the thickness is less than 0.01 μm , it takes time to fill the scratch, and if it exceeds 0.02 μm , the surface smoothness of the silicon oxide film 31 is reduced.
【００１７】本実施例は、酸化シリコンで形成された被
膜３２により傷３３を埋め、カバーガラス３０の表面を
平滑化できるので、投射光は、散乱することなくカバー
ガラス３０を透過し、設定したパターンを得ることがで
きる。また、前記酸化シリコン被膜３２は屈折率がガラ
スより小さいので、カバーガラス３０全体の透過率を向
上することができ、散乱光による損失を阻止できること
と相俟って、スポット中心部の照度を、約１０％向上す
ることができた。In this embodiment, since the flaws 33 can be filled with the coating film 32 made of silicon oxide and the surface of the cover glass 30 can be smoothed, the projection light is transmitted through the cover glass 30 without being scattered. You can get a pattern. Further, since the silicon oxide film 32 has a refractive index smaller than that of glass, the transmittance of the entire cover glass 30 can be improved, and the illuminance at the center of the spot can be reduced due to the fact that loss due to scattered light can be prevented. It could be improved by about 10%.
【００１８】次ぎに反射鏡付きハロゲン電球の製造の過
程を説明する。まず、粒度０．０１μｍ〜０．０２μｍ
の酸化シリコンの微粒子を有機溶剤であるアルコールに
混入、攪拌して、酸化シリコン微粒子の分散液を用意す
る。そして、カバーガラス３０を分散液に浸漬した後、
取出し、乾燥装置により乾燥する。この操作を複数回繰
り返すことにより、設定された厚さほぼ０．５μｍに酸
化シリコンで形成された被膜３２が被着されたカバーガ
ラス３０を得る。Next, the process of manufacturing a halogen lamp with a reflector will be described. First, a particle size of 0.01 μm to 0.02 μm
The silicon oxide fine particles are mixed with alcohol, which is an organic solvent, and stirred to prepare a dispersion of silicon oxide fine particles. Then, after immersing the cover glass 30 in the dispersion,
Take out and dry with a drying device. By repeating this operation a plurality of times, the cover glass 30 to which the coating 32 made of silicon oxide is adhered to the set thickness of approximately 0.5 μm is obtained.
【００１９】一方、ミラー本体２０を支持段部２４に、
上述の酸化シリコン被膜３２が設けられたカバーガラス
３０を接着して、本発明の反射鏡付きハロゲン電球が得
られる。このように、単に浸漬と乾燥を行うだけなの
で、安価な設備で、高能率に反射鏡付きハロゲン電球を
得ることができる。On the other hand, the mirror main body 20 is
By bonding the cover glass 30 provided with the silicon oxide film 32 described above, a halogen lamp with a reflector according to the present invention is obtained. As described above, since only immersion and drying are performed, a halogen bulb with a reflecting mirror can be obtained with high efficiency using inexpensive equipment.
【００２０】[0020]
【発明の効果】以上詳述したように、本発明の反射鏡付
きハロゲン電球は、カバーガラスの表面に酸化シリコン
で形成された被膜を設けたので、この酸化シリコン被膜
により、傷を埋めることができ、表面を平滑化できる。
この酸化シリコン被膜による表面の平滑化は、研磨の除
去加工による平滑化と比べて加工時間を大幅に短縮で
き、この結果、生産性を飛躍的に向上させることができ
る。また、酸化シリコンで形成された被膜はカバーガラ
スより低屈折率なので、カバーガラス全体の透過率を向
上でき、傷による投射光の散乱を防止したことと相俟っ
て、投射光の中心部の照度が増加し、その結果配光特性
を向上させることができる。As described above in detail, in the halogen lamp with a reflector according to the present invention, the coating made of silicon oxide is provided on the surface of the cover glass. And the surface can be smoothed.
The smoothing of the surface by the silicon oxide film can greatly reduce the processing time as compared with the smoothing by the removal processing of polishing, and as a result, the productivity can be dramatically improved. In addition, since the coating formed of silicon oxide has a lower refractive index than the cover glass, the transmittance of the entire cover glass can be improved, and the scattering of the projection light due to scratches is prevented. The illuminance increases, and as a result, the light distribution characteristics can be improved.
【図１】本発明の一実施例の正面視断面説明図。FIG. 1 is an explanatory front sectional view of an embodiment of the present invention.
【図２】図１におけるＡ部拡大断面説明図。FIG. 2 is an enlarged sectional explanatory view of a portion A in FIG.
１０ ハロゲン電球 ２０ ミラー本体 ２１ 反射鏡 ２２ 開口 ３０ カバーガラス ３２ 酸化シリコンで形成された被膜 DESCRIPTION OF SYMBOLS 10 Halogen bulb 20 Mirror main body 21 Reflector 22 Opening 30 Cover glass 32 Coating formed with silicon oxide
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01K 1/32 H01K 3/00 H01K 7/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01K 1/32 H01K 3/00 H01K 7/00
Claims (2)
学的に対向して設けられた反射鏡と、表面に厚さ０．２
μｍ〜０．７μｍの酸化シリコンで形成された被膜を有
してなり、前記反射鏡の開口を覆うように設けられたカ
バーガラスを具備していることを特徴とする反射鏡付き
ハロゲン電球。1. A halogen lamp, a reflecting mirror optically opposed to the halogen lamp, and a surface having a thickness of 0.2 mm.
A halogen lamp with a reflecting mirror, comprising: a coating formed of silicon oxide of μm to 0.7 μm ; and a cover glass provided to cover an opening of the reflecting mirror.
る酸化シリコンの粒度を０．０１μｍ〜０．０２μｍと
したことを特徴とする請求項１記載の反射鏡付きハロゲ
ン電球。2. The halogen lamp with a reflector according to claim 1, wherein the particle size of the silicon oxide constituting the film formed of the silicon oxide is 0.01 μm to 0.02 μm .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34739191A JP3259301B2 (en) | 1991-12-27 | 1991-12-27 | Halogen bulb with reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34739191A JP3259301B2 (en) | 1991-12-27 | 1991-12-27 | Halogen bulb with reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05182643A JPH05182643A (en) | 1993-07-23 |
| JP3259301B2 true JP3259301B2 (en) | 2002-02-25 |
Family
ID=18389912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34739191A Expired - Fee Related JP3259301B2 (en) | 1991-12-27 | 1991-12-27 | Halogen bulb with reflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3259301B2 (en) |
-
1991
- 1991-12-27 JP JP34739191A patent/JP3259301B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05182643A (en) | 1993-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2706262A (en) | Diffusion coated articles | |
| JP2788533B2 (en) | Automotive headlamp | |
| US5601474A (en) | Polishing disc of spherical surface polishing device for optical fiber end surface and method for polishing spherical surface of optical fiber end surface | |
| JP3355654B2 (en) | Image display device and method of manufacturing the same | |
| US4884006A (en) | Inner surface specular reflection suppression in flat CRT faceplate | |
| JP3259301B2 (en) | Halogen bulb with reflector | |
| JPS5941161B2 (en) | Lamp unit with controlled diffuse reflector and method for manufacturing the reflector | |
| US2238008A (en) | Light conditioning device and method of manufacturing same | |
| US3891421A (en) | Method of making a controlled-diffusion stippled reflector by sag molding | |
| JP5272732B2 (en) | Optical member and manufacturing method thereof | |
| JP2004165723A (en) | Electronic imaging apparatus | |
| JPS6097502A (en) | Metal base dichromatic reflector | |
| US2144673A (en) | Incandescent lamp and its manufacture | |
| US2432867A (en) | Polarizer and polarizing lamp | |
| US5581410A (en) | Resin-coupled optical element and method of production | |
| JP2010281877A (en) | Optical element and optical system including the same | |
| JPH05206524A (en) | Molding resin for photo-semiconductor | |
| JPH0719550B2 (en) | Method for manufacturing antireflection cathode ray tube | |
| JPS5911499A (en) | Signal lamp | |
| JPS6137126Y2 (en) | ||
| JPH02288003A (en) | Lighting apparatus | |
| GB833761A (en) | Improvements in electric lamps | |
| JP2002124704A (en) | Reflection type light emitting diode | |
| JPS6350774Y2 (en) | ||
| WO1991010256A1 (en) | Tungsten halogen aluminized reflector lamp and method of fabricating such lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101214 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |