JPS62219403A - Light reflector - Google Patents
Light reflectorInfo
- Publication number
- JPS62219403A JPS62219403A JP61062334A JP6233486A JPS62219403A JP S62219403 A JPS62219403 A JP S62219403A JP 61062334 A JP61062334 A JP 61062334A JP 6233486 A JP6233486 A JP 6233486A JP S62219403 A JPS62219403 A JP S62219403A
- Authority
- JP
- Japan
- Prior art keywords
- light
- visible light
- reflector
- light reflector
- infrared rays
- 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
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 239000005083 Zinc sulfide Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は特定波長域の可視光を反射し、赤外線のみを後
方へ透過する光反射器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a light reflector that reflects visible light in a specific wavelength range and transmits only infrared rays backward.
従来の技術
照明光の色温度が３０００に前後の通常の一般付
照明用の選択性反射膜妙光反射器（ダイクロイックミラ
ー）においては、赤外線を透過し、可視光の大部分を反
射するので、反射器後部への可視透過光は少ない。Conventional technology Selective reflective film dichroic mirrors for general lighting with an illumination light color temperature of around 3000 transmit infrared rays and reflect most of visible light. There is little visible light transmitted to the rear of the reflector.
発明が解決しようとする問題点
しかし、高色温度例えば５５００にの照明光を得ようと
すると、４００〜５５Ｑｎｍの短波長の可視光のみを反
射させる必要があり、従って光反射器後方への透過光Ｃ
主として長波長の可視光）は多くなる。光反射器後方へ
放出される光は撮影用光源または医療用光源として照明
効果を著しく損ねるので、遮光のための器具や部品が必
要となり、そのため照明器具が大型でより複雑なものと
なる。Problems to be Solved by the Invention However, in order to obtain illumination light with a high color temperature of, for example, 5500 nm, it is necessary to reflect only visible light with a short wavelength of 400 to 55 Qnm. light C
(mainly long-wavelength visible light) increases. Since the light emitted behind the light reflector significantly impairs the illumination effect as a photographic light source or a medical light source, a light shielding device or component is required, which makes the lighting equipment larger and more complex.
本発明は特定波長域の可視光を反射し、一部の可視光を
吸収して、光反射器後方へは可視光をほとんど放出せず
、赤外線のみを放射する光反射器を提供することを目的
とする。The present invention aims to provide a light reflector that reflects visible light in a specific wavelength range, absorbs some visible light, and emits only infrared rays while emitting almost no visible light to the rear of the light reflector. purpose.
問題点を解決するだめの手段
本発明は内面に選択性反射膜を形成した基体の外面に可
視光を吸収し赤外線を透過する被膜を形成したものであ
る。Means for Solving the Problems The present invention is a substrate having a selectively reflective film formed on its inner surface, and a coating that absorbs visible light and transmits infrared rays formed on the outer surface of the substrate.
作用
この構成により、光反射器の後方への可視光の放出をほ
とんど防止することができる。Effect This configuration makes it possible to almost prevent visible light from being emitted behind the light reflector.
実施例
第１図は本発明を適用してなる医療用照明などに使用す
る光反射器付きハロゲン電球の断面図である。図中、１
は投光用光反射器、２は一体的に結合されたハロゲン電
球すなわち光源である。Embodiment FIG. 1 is a sectional view of a halogen light bulb with a light reflector used for medical lighting, etc., to which the present invention is applied. In the figure, 1
2 is a light reflector for projecting light, and 2 is an integrally combined halogen bulb or light source.
光反射器１は回転二次曲面をなすガラス製基体３の内面
に赤外線透過可視光反射膜４を蒸着などの方法により形
成し、外面に可視光を吸収し、赤外線を透過する被膜（
以下可視光吸収膜という）６を塗装などの方法によって
形成しである。The light reflector 1 is formed by forming an infrared transmitting and visible light reflecting film 4 on the inner surface of a glass base 3 having a rotating quadratic curved surface by a method such as vapor deposition, and a coating that absorbs visible light and transmits infrared light (
6 (hereinafter referred to as a visible light absorbing film) is formed by a method such as painting.
赤外線透過可視光反射膜４は高屈折率の物質たとえば、
硫化亜鉛（ＺｎＳ ）と低屈折率の物質たとえば二酸化
ケイ素（５ｉ０２ ） とを交互に重層したものから
なシ、光干渉によって可視光を効率良く反射し、赤外線
を良く透過する。可視光吸収膜６は、シリカ、ジルコニ
ア、アルミナ、チタンその他の金属化合物を主成分とす
る黒色のセラミック・コーティング剤（国際技術交易株
式会社製ＣＩＣＲＡＣつぎに、この実施例の作用を説明
する。ハロゲン電球２から放射された光のうち、光反射
器１の内面の赤外線透過可視光反射膜４によって特定波
長域の可視光は反射され前方へ投射される。−刀、特定
波長域以外の可視光と赤外線は赤外線透過可視光反射膜
４を透過して光反射器１の後方へ放射される。後方へ放
射される可視光は光反射器１の前方へ投射される光の色
温度が高くなるほど増大する。しかし、本実施例に示す
光反射器１の外面の可視光吸収膜６によって、可視光の
大部分は吸収され、光反射器後方へは赤外線のみが放射
される。可視光吸収膜を、設け、ることによって、光反
射器外面へ投射される光の特性（配光０色温度、赤外放
射など）には何ら変化がなく、また光反射器外面の温度
もほとんど変らない。The infrared transmitting and visible light reflecting film 4 is made of a material with a high refractive index, for example,
It is made of alternating layers of zinc sulfide (ZnS) and a substance with a low refractive index, such as silicon dioxide (5i02), and efficiently reflects visible light and transmits infrared rays through optical interference. The visible light absorbing film 6 is made of a black ceramic coating agent (CICRAC manufactured by Kokusai Gijutsu Co., Ltd.) whose main component is silica, zirconia, alumina, titanium, or other metal compound.Next, the function of this embodiment will be explained. Of the light emitted from the light bulb 2, visible light in a specific wavelength range is reflected by the infrared transmitting visible light reflecting film 4 on the inner surface of the light reflector 1 and projected forward. - Sword, visible light outside the specific wavelength range The infrared rays and the infrared rays pass through the infrared transmitting visible light reflecting film 4 and are radiated to the rear of the light reflector 1.The higher the color temperature of the light projected to the front of the light reflector 1, the higher the visible light radiated to the rear. However, most of the visible light is absorbed by the visible light absorbing film 6 on the outer surface of the light reflector 1 shown in this embodiment, and only infrared rays are emitted to the rear of the light reflector.Visible light absorbing film By providing this, there is no change in the characteristics of the light projected onto the outer surface of the light reflector (light distribution, zero color temperature, infrared radiation, etc.), and the temperature of the outer surface of the light reflector is almost unchanged.
第２図は光反射器内面の赤外線透過可視光反射膜４と光
反射器外面の可視光吸収膜６の分光透過特性を示したも
ので、曲線ムは色温度５０００に前後の医療用または写
真撮影用として使用するダイクロイックミラー、曲線Ｂ
は可視光吸収膜の各分光透過特性の一例である。なお、
Ｖλは視感度曲線である。色温度５０００に前段のダイ
クロイックミラーの場合、可視光吸収膜がないと、曲線
Ｖλ と曲線ムとで囲まれた範囲（斜線部分）の波長域
の可視光が光反射器後方へ放出されるが、可視光吸収膜
を設けることによってそれを大きく減少できることがわ
かる（曲線Ｖλと曲線Ｂで囲まれた範囲）。Figure 2 shows the spectral transmission characteristics of the infrared transmitting and visible light reflecting film 4 on the inner surface of the light reflector and the visible light absorbing film 6 on the outer surface of the light reflector. Dichroic mirror used for photography, curve B
are examples of each spectral transmission characteristic of the visible light absorption film. In addition,
Vλ is a visibility curve. In the case of a front-stage dichroic mirror with a color temperature of 5000, if there is no visible light absorption film, visible light in the wavelength range surrounded by curve Vλ and curve M (shaded area) will be emitted to the rear of the light reflector. , it can be seen that it can be greatly reduced by providing a visible light absorbing film (range surrounded by curve Vλ and curve B).
発明の詳細
な説明したように、本発明は内面に選択性反射膜を形成
した基体の外面に可視光を吸収し赤外線を透過する被膜
を設けたので、特定波長域の可視光を投射し、反射器後
方べは赤外線を放射するが、可視光を遮光することがで
き、小型で構造の簡単な光反射器を提供することができ
るものである。As described in detail, the present invention provides a coating that absorbs visible light and transmits infrared rays on the outer surface of a substrate that has a selective reflective film formed on its inner surface, so visible light in a specific wavelength range is projected. Although the rear part of the reflector emits infrared rays, visible light can be blocked, and a light reflector that is small and has a simple structure can be provided.
第１図は本発明の一実施例である光反射器の断面図、第
２図は赤外線透過可視光反射膜と可視光吸収膜の分光透
過特性図である。
１・・・・・・光反射器、２・・・・・・ノ・ロゲン電
球、３０１１０．。
ガラス基体、４・・・・・・赤外線透過可視光反射膜、
６・・・・・・可視光吸収膜。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名７Ｊ
４１ 図FIG. 1 is a sectional view of a light reflector that is an embodiment of the present invention, and FIG. 2 is a spectral transmission characteristic diagram of an infrared transmitting visible light reflecting film and a visible light absorbing film. 1... Light reflector, 2... Norogen light bulb, 30110. . Glass substrate, 4...Infrared transmitting visible light reflecting film,
6... Visible light absorption film. Name of agent: Patent attorney Toshio Nakao and 1 other person 7J
41 Figure
Claims (1)
吸収し赤外線を透過する被膜を形成したことを特徴とす
る光反射器。A light reflector characterized in that a coating that absorbs visible light and transmits infrared rays is formed on the outer surface of a base body that has a selective reflective film formed on the inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61062334A JPS62219403A (en) | 1986-03-20 | 1986-03-20 | Light reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61062334A JPS62219403A (en) | 1986-03-20 | 1986-03-20 | Light reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62219403A true JPS62219403A (en) | 1987-09-26 |
Family
ID=13197128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61062334A Pending JPS62219403A (en) | 1986-03-20 | 1986-03-20 | Light reflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62219403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH023607U (en) * | 1988-06-20 | 1990-01-11 |
-
1986
- 1986-03-20 JP JP61062334A patent/JPS62219403A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH023607U (en) * | 1988-06-20 | 1990-01-11 |
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