JPH0152842B2 - - Google Patents
Info
- Publication number
- JPH0152842B2 JPH0152842B2 JP54148625A JP14862579A JPH0152842B2 JP H0152842 B2 JPH0152842 B2 JP H0152842B2 JP 54148625 A JP54148625 A JP 54148625A JP 14862579 A JP14862579 A JP 14862579A JP H0152842 B2 JPH0152842 B2 JP H0152842B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- filament
- heat ray
- rays
- light source
- 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
Links
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
【発明の詳細な説明】 この発明は照明器具に関するものである。[Detailed description of the invention] This invention relates to lighting equipment.
従来、たとえば特開昭51−8785号に類似する
が、第１図に示すように、球状ランプ管１（ガラ
ス製）の内周面に、透光性熱線反射膜２（TiO2
層２ａ、Ag層２ｂ、TiO2層２ｃを順次積層形成
した多層膜）を被着し、この透光性熱線反射膜２
によりフイラメント３から放出された光線のうち
熱線のみを反射して再びフイラメント３に返還
し、その熱線でフイラメント３を温度上昇してよ
り少ない人力でフイラメント３を所定温度に維持
して消費電力の低減を図つたものがある。４はス
テム、５は口金である。 Conventionally, similar to Japanese Patent Application Laid-Open No. 51-8785, as shown in FIG .
A multilayer film in which layer 2a, Ag layer 2b, and TiO 2 layer 2c are sequentially laminated is deposited, and this translucent heat ray reflective film 2
Only the heat rays out of the light rays emitted from the filament 3 are reflected and returned to the filament 3, and the heat rays raise the temperature of the filament 3 to maintain the filament 3 at a predetermined temperature with less human power, reducing power consumption. There is something that was designed to 4 is a stem, and 5 is a cap.
ところが、この照明器具は、ランプ管１の球面
に透光性熱線反射膜２を被着するため、膜厚の精
密な制御が困難であり、そのため製作コストが高
くつき、また配光制御機能が得られないという欠
点があつた。 However, since this lighting device coats the spherical surface of the lamp tube 1 with a translucent heat-reflecting film 2, it is difficult to precisely control the film thickness, resulting in high production costs and a poor light distribution control function. The drawback was that it was not available.
したがつて、この発明の目的は、透光性熱線反
射膜の被着が容易でしかも配光制御が可能な照明
器具を提供することである。 Accordingly, an object of the present invention is to provide a lighting fixture in which a light-transmitting heat-reflecting film can be easily applied and light distribution can be controlled.
この発明の概要は、反射用凹面を有する集光反
射鏡のその凹面内にフイラメントを有する光源を
配設するとともに、その凹面開口端に透光板の全
面に取り付け、さらにその透光板に可視光は透過
するが熱線は反射する透光性熱線反射膜を被着し
たもので、光源からの熱線を集光反射鏡および透
光性熱線反射膜で反射して光源に返還し、その熱
線で光源のフイラメントを温度上昇してより少な
い人力でフイラメントを所定温度に維持して消費
電力の低減を図らんとするものである。この場
合、反射して光源に帰つてくる熱線の経路は３通
りである。すなわち、透光性熱線反射膜に反射
されて直接帰るもの、集光反射鏡に反射されて
直接帰るもの、透光性熱線反射膜および集光反
射鏡にそれぞれ１回または複数回ずつ反射されて
帰るものがある。 The outline of this invention is that a light source having a filament is disposed within the concave surface of a condensing reflector having a concave reflective surface, and is attached to the entire surface of a light-transmitting plate at the opening end of the concave surface, and is further visible on the light-transmitting plate. It is coated with a translucent heat ray reflective film that transmits light but reflects heat rays.The heat rays from the light source are reflected by the condensing reflector and the translucent heat ray reflective film and returned to the light source. The aim is to raise the temperature of the filament of the light source and maintain the filament at a predetermined temperature with less human effort, thereby reducing power consumption. In this case, there are three paths for the heat rays to be reflected and return to the light source. In other words, the light is reflected directly by the light-transmitting heat-ray reflecting film and returning directly, the light is reflected by the light-transmitting heat-ray reflecting film and returning directly, and the light is reflected once or multiple times each by the light-transmitting heat-ray reflecting film and the light collecting mirror. I have something to go back to.
この発明の一実施例を第２図に示す。すなわ
ち、この照明器具は、第２図に示すように、回転
放物面を実施例とする集光反射鏡６の焦点に光源
７のフイラメントを配置し、集光反射鏡６の開口
部に集光反射鏡６の軸に垂直にガラスを実施例と
する透光板８を取付け、透光板８の光源７側とな
る面の全面に透光性熱線反射膜９（TiO2層９ａ、
Ag層９ｂ、TiO2層９ｃを順次積層形成した多層
膜）を被着したものである。この場合、フイラメ
ント７の発光部は極力小さく設定し、かつ集光反
射鏡６の焦点に高精度で配置する。なお、透光性
熱線反射膜９は、第２図において図示の都合上厚
く描いたが、実際は極めて薄いものである。 An embodiment of this invention is shown in FIG. That is, as shown in FIG. 2, in this lighting fixture, a filament of a light source 7 is arranged at the focal point of a condensing reflector 6, which has a paraboloid of revolution as an example, and the filament is condensed at the opening of the condensing reflector 6. A light transmitting plate 8 made of glass is attached perpendicularly to the axis of the light reflecting mirror 6, and a light transmitting heat ray reflecting film 9 (TiO 2 layer 9a,
A multilayer film in which an Ag layer 9b and a TiO 2 layer 9c are sequentially laminated is deposited. In this case, the light emitting part of the filament 7 is set as small as possible and placed at the focal point of the condensing reflector 6 with high precision. Although the transparent heat ray reflective film 9 is drawn thick in FIG. 2 for convenience of illustration, it is actually extremely thin.
つぎに、この照明器具の動作を説明する。すな
わち、光源７のフイラメントから出た光線（熱線
を含む）のうち反射鏡６に向う光線Ａ，Ｂは、そ
れぞれ集光反射鏡６で反射されて集光反射鏡６の
軸に沿つて平行に進み、透光性熱線反射膜９に照
射される。この照射された光線のうち、熱線は、
透光性熱線反射膜９で反射されて同一経路を逆行
し、光源７のフイラメントに入射して光源７のフ
イラメントの再加熱を行い、これにより再加熱分
だけ供給電力の低減を図ることができる。一方、
透光性熱線反射膜９に投射された残りの可視光成
分は、透光性熱線反射膜９および前面透光板８を
そのまま透過し、平行光線となつて前進し、目的
の被照体に照射される。なお、光源７から集光反
射鏡６に向かわずに直接に透光性熱線反射膜９に
照射された光線Ｃ中の熱線は、透光線熱線反射膜
９により反射された後、直接、光源７に返ること
はないが、この熱線量は全熱線量に比較して少な
いため、供給電力の低減化、すなわちランプ高率
への影響は少ない。 Next, the operation of this lighting fixture will be explained. That is, among the light rays (including heat rays) emitted from the filament of the light source 7, the light rays A and B directed toward the reflecting mirror 6 are reflected by the condensing reflector 6 and are parallel to each other along the axis of the condensing reflector 6. The light then advances and is irradiated onto the translucent heat ray reflective film 9. Among these irradiated light rays, heat rays are
It is reflected by the translucent heat ray reflection film 9 and travels the same path backwards, and enters the filament of the light source 7 to reheat the filament of the light source 7, thereby reducing the power supply by the amount of reheating. . on the other hand,
The remaining visible light components projected onto the transparent heat ray reflective film 9 pass through the transparent heat ray reflective film 9 and the front transparent plate 8 as they are, advance as parallel light rays, and reach the target object. irradiated. Note that the heat rays in the light C that are directly irradiated from the light source 7 to the transparent heat ray reflective film 9 without being directed to the light condensing reflector 6 are reflected by the transparent heat ray reflective film 9 and then directly directed to the light source. 7, but since this amount of heat rays is small compared to the total amount of heat rays, it has little effect on the reduction in power supply, that is, on the lamp height.
このように、透光性熱線反射膜９は透光板８の
みに処理すればよいため、光源７の周囲全面に処
理する必要がなくなる。また、前面透光板８は平
面であるため、透光性熱線反射膜９を均一に施し
やすくなり、製作コストを低減できる。さらに、
可視光成分は集光反射鏡６により一方向に配光制
御されるため、指向性配光が必要な照明器具にそ
のまま使用できる。 In this way, the light-transmitting heat-reflecting film 9 only needs to be applied to the light-transmitting plate 8, so there is no need to process the entire area around the light source 7. Furthermore, since the front light-transmitting plate 8 is flat, it becomes easy to apply the light-transmitting heat ray reflecting film 9 uniformly, and manufacturing costs can be reduced. moreover,
Since the visible light component is controlled to be distributed in one direction by the condensing reflector 6, it can be used as is in lighting equipment that requires directional light distribution.
この発明の他の実施例を第３図に示す。すなわ
ち、この照明器具は、第３図に示すように、第１
焦点F1と第２焦点F2を有する回転楕円体をその
短軸上で半分割楕円面を実施例とする集光反射鏡
１０の第１焦点F1に光源１１のフイラメントを
設置し、集光反射鏡１０の開口部に集光反射鏡１
０の長軸に垂直に透光板１２を取付け、この透光
板１２の光源１１側の表面に透光性熱線反射膜１
３（TiO2層１３ａ、Ag層１３ｂ、TiO2層１３ｃ
を順次積層形成した多層膜）を被着したものであ
る。この場合、前面透光板１２の透光性熱線反射
膜１３を有する面は、第１焦点F1と第２焦点F2
の中央に配置する。なお、透光性熱線反射膜１３
は、第３図において図示の都合上厚く描いている
が、実際は極めて薄いものである。 Another embodiment of the invention is shown in FIG. That is, as shown in FIG.
The filament of the light source 11 is installed at the first focus F 1 of the converging reflector 10, which has a half-divided ellipsoid on its short axis, and has a focal point F 1 and a second focal point F 2 . A condensing reflector 1 is placed at the opening of the light reflector 10.
A light transmitting plate 12 is attached perpendicularly to the long axis of
3 (TiO 2 layer 13a, Ag layer 13b, TiO 2 layer 13c
This is a multilayer film formed by sequentially laminating layers. In this case, the surface of the front light transmitting plate 12 having the light transmitting heat ray reflecting film 13 has a first focus F 1 and a second focus F 2 .
Place it in the center. Note that the transparent heat ray reflective film 13
is drawn thickly in FIG. 3 for convenience of illustration, but it is actually extremely thin.
つぎに、この照明器具の動作を説明する。すな
わち、光源１１のフイラメントから出た光線（熱
線を含む）のうち、集光反射鏡１０に向かう光線
は、反射鏡１０により第２焦点F2に向け反射さ
れ、透光性熱線反射膜１３に照射される。この照
射光線のうち、熱線は透光性熱線反射膜１３で反
射されて第１焦点F1に向け進み、光源１１のフ
イラメントの再加熱を行う。これは、透光性熱線
反射膜１３を第１焦点F1と第２焦点F2の中央に
配置しているためである。一方、透光性熱線反射
膜１３に照射された残りの可視光成分は、透光性
熱線反射膜１３および透光板１２をそのまま透過
し、第２焦点F2に集光する。これらの光線の角
度関係はθ1、θ2で表した。なお、光源１１のフイ
ラメントから集光反射鏡に向かわずに直接に透光
性熱線反射膜１３に照射された光線中の熱線は、
透光性熱線反射膜１３により反射された後、集光
反射鏡１０により反射されて再び光源１１のフイ
ラメントに入射してフイラメントの加熱に寄与す
る。 Next, the operation of this lighting fixture will be explained. That is, among the light rays (including heat rays) emitted from the filament of the light source 11, the light rays directed toward the condensing reflector 10 are reflected by the reflector 10 toward the second focal point F2 , and are reflected by the translucent heat ray reflective film 13. irradiated. Among the irradiation light beams, the heat rays are reflected by the transparent heat ray reflection film 13 and proceed toward the first focal point F 1 to reheat the filament of the light source 11 . This is because the light-transmitting heat ray reflecting film 13 is arranged at the center of the first focal point F 1 and the second focal point F 2 . On the other hand, the remaining visible light components irradiated onto the translucent heat ray reflection film 13 pass through the translucent heat ray reflection film 13 and the light transmission plate 12 as they are, and are focused on the second focal point F 2 . The angular relationship between these rays is expressed as θ 1 and θ 2 . Note that the heat rays in the light rays directly irradiated from the filament of the light source 11 to the translucent heat ray reflective film 13 without being directed to the condensing reflector are as follows:
After being reflected by the translucent heat ray reflecting film 13, the light is reflected by the condensing reflector 10 and enters the filament of the light source 11 again, contributing to the heating of the filament.
この実施例の照明器具も、第２図に示す照明器
具と同様、透光性熱線反射膜１３を透光板１２に
のみ処理すればよく、また、透光板１２が平面で
あるため透光性熱線反射膜１３を均一に施しやす
いという利点を有する。さらに、可視光成分のほ
とんどを、集光反射鏡１０により第２焦点F2に
配光制御することができ、指向性配光が必要な照
明器具にそのまま使用できる。その場合、集光反
射鏡１０の長軸と短軸を適切に寸法設定すること
により目的に合致した配光を実現しうる。その
上、熱線の反射回数が透光性熱線反射膜１３での
反射を除き１回であつて、第２図に示す実施例の
２回に比べて以上のように、この発明の照明器具
によれば、フイラメントを有する光源と、この光
源の前記フイラメントを焦点に配置した回転放物
面または回転楕円面の集光反射鏡と、この集光反
射鏡の開口部に取付けられた平板状の透光板と、
この透光板の全面に被着されて前記フイラメント
からの熱線を反射して前記フイラメントに再帰さ
せる透光性熱線反射膜とを備えたため、つぎの作
用効果がある。 Similar to the lighting fixture shown in FIG. 2, the lighting fixture of this embodiment also requires that the light-transmitting heat ray reflecting film 13 be applied only to the light-transmitting plate 12, and since the light-transmitting plate 12 is a flat surface, the light-transmitting This has the advantage that the heat ray reflective film 13 can be easily applied uniformly. Furthermore, most of the visible light components can be controlled to be distributed to the second focal point F2 by the condensing reflector 10, and can be used as is in lighting equipment that requires directional light distribution. In that case, by appropriately setting the dimensions of the long axis and short axis of the condensing reflector 10, it is possible to realize a light distribution that meets the purpose. Moreover, the number of reflections of the heat rays is one, excluding the reflection on the translucent heat ray reflection film 13, compared to two times in the embodiment shown in FIG. According to the above, a light source having a filament, a condensing reflector having a paraboloid of revolution or an ellipsoid of revolution with the filament of the light source placed at the focal point, and a flat transparent light source attached to an opening of the condensing reflector. light plate and
Since a light-transmitting heat ray reflecting film is provided on the entire surface of the light-transmitting plate to reflect heat rays from the filament and return them to the filament, the following effects can be obtained.
すなわち、透光性熱線反射膜を平板状の透光板
に被着するため、膜厚の精密な制御が可能となり
均一な膜を簡単に形成することができるのでコス
ト安にすることができる。しかも透光性熱線反射
膜の透光した熱線は回転放物面の集光反射鏡の場
合赤外線のほとんどがフイラメントに再帰し、回
転楕円面の集光反射鏡の場合赤外線の全てがフイ
ラメントに再帰するため、効率よくフイラメント
を加熱できる。また透光性熱線反射膜を透過した
光は集光反射鏡により配光制御されているので、
集光反射鏡を所定の方向に向けることにより配光
制御が可能となる。 That is, since the light-transmitting heat-reflecting film is applied to a flat light-transmitting plate, the film thickness can be precisely controlled, and a uniform film can be easily formed, thereby reducing costs. Moreover, most of the infrared rays transmitted by the transparent heat ray reflective film are reflected back to the filament in the case of a condensing reflector with a paraboloid of revolution, and all of the infrared rays is reflected back to the filament in the case of a condensing reflector with an ellipsoid of revolution. Therefore, the filament can be heated efficiently. In addition, the light that passes through the translucent heat ray reflective film is controlled by a condensing reflector, so
Light distribution can be controlled by orienting the condensing reflector in a predetermined direction.
第１図は従来例の断面図、第２図はこの発明の
一実施例の断面図、第３図は他の実施例の断面図
である。
６，１０…集光反射鏡、７，１１…光源、８，
１２…透光板、９，１３…透光性熱線反射膜。
FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of one embodiment of the present invention, and FIG. 3 is a sectional view of another embodiment. 6, 10... Condensing reflector, 7, 11... Light source, 8,
12... Transparent plate, 9, 13... Transparent heat ray reflective film.
Claims (1)
記フイラメントを焦点に配置した回転放物面また
は回転楕円面の集光反射鏡と、この集光反射鏡の
開口部に取付けられた平板状の透光板と、この透
光板の全面に被着されて前記フイラメントからの
熱線を反射して前記フイラメントに再帰させる透
光性熱線反射膜とを備えた照明器具。1. A light source having a filament, a converging reflector in the form of a paraboloid of revolution or an ellipsoid of revolution with the filament of the light source placed at the focal point, and a flat transparent plate attached to the opening of the condensing reflector. and a light-transmitting heat ray reflecting film that is adhered to the entire surface of the light-transmitting plate to reflect heat rays from the filament and return them to the filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14862579A JPS5671208A (en) | 1979-11-15 | 1979-11-15 | Illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14862579A JPS5671208A (en) | 1979-11-15 | 1979-11-15 | Illuminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5671208A JPS5671208A (en) | 1981-06-13 |
| JPH0152842B2 true JPH0152842B2 (en) | 1989-11-10 |
Family
ID=15456963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14862579A Granted JPS5671208A (en) | 1979-11-15 | 1979-11-15 | Illuminator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5671208A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58130304U (en) * | 1982-02-26 | 1983-09-03 | 株式会社小糸製作所 | Vehicle lights |
| JPS59134308U (en) * | 1983-02-28 | 1984-09-08 | 松下電工株式会社 | lighting equipment |
| JPS6072106A (en) * | 1983-09-28 | 1985-04-24 | 東芝ライテック株式会社 | Illuminator |
| JPH0220209U (en) * | 1988-07-25 | 1990-02-09 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518785A (en) * | 1974-07-11 | 1976-01-23 | Fuji Electric Co Ltd | HAKUNETSUDENKYUOMOCHIITASHOMEIKIGU |
-
1979
- 1979-11-15 JP JP14862579A patent/JPS5671208A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518785A (en) * | 1974-07-11 | 1976-01-23 | Fuji Electric Co Ltd | HAKUNETSUDENKYUOMOCHIITASHOMEIKIGU |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5671208A (en) | 1981-06-13 |
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