JPH0679442B2 - lighting equipment - Google Patents
lighting equipmentInfo
- Publication number
- JPH0679442B2 JPH0679442B2 JP5574586A JP5574586A JPH0679442B2 JP H0679442 B2 JPH0679442 B2 JP H0679442B2 JP 5574586 A JP5574586 A JP 5574586A JP 5574586 A JP5574586 A JP 5574586A JP H0679442 B2 JPH0679442 B2 JP H0679442B2
- Authority
- JP
- Japan
- Prior art keywords
- infrared
- ultraviolet
- filter
- blocking layer
- 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.)
- Expired - Lifetime
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Optical Filters (AREA)
- Liquid Crystal Substances (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は照明器具に係り、例えば美術館における絵画の
スポットライト照明あるいは店舗等において衣服の照明
などに適するように赤外線および紫外線を遮断するフィ
ルタに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a lighting apparatus, for example, infrared rays and ultraviolet rays so as to be suitable for spotlight illumination of paintings in museums or illumination of clothes in stores and the like. It relates to a filter for blocking.
（従来の技術） 一般に、照明器具において比較的照度レベルの低いベー
スの照明では問題とならなかった紫外線や赤外線が、た
とえば光源にメタルハライドランプなどの高輝度放電ラ
ンプを用いたスポット照明では集中照射されるので、被
照射物の温度上昇や褪色をもたらした。このため従来照
明器具は反射板の照射口に設けたガラス板に酸化セリウ
ム（CeO2）等を含ませ紫外線吸収ガラスを用いて紫外線
を遮断するか、赤外線吸収ガラスまたは赤外線反射膜を
用いて赤外線を遮断するかのどちらか一方であった。(Prior Art) Generally, ultraviolet rays and infrared rays, which have not been a problem in base lighting having a relatively low illuminance level in lighting fixtures, are intensively irradiated in spot lighting using a high-intensity discharge lamp such as a metal halide lamp as a light source. As a result, the temperature of the object to be irradiated rises and fading occurs. For this reason, in conventional lighting equipment, the glass plate provided at the irradiation port of the reflection plate is made to contain cerium oxide (CeO 2 ) etc. to block the ultraviolet rays using the ultraviolet absorption glass, or the infrared rays are formed using the infrared absorption glass or infrared reflection film. Either was cut off.
（発明が解決しようとする問題点） しかしながら、前記従来の照明器具に用いられた紫外線
吸収ガラスは、波長が800nm以上の赤外線を遮断する機
能はなく、却って一般のソーダガラスより赤外線を透過
し、また、赤外線吸収ガラスまたは赤外線反射膜は、波
長が400nm以下の紫外線を遮断する機能はなく、紫外線
を透過し、１枚のフィルタでは紫外線および赤外線の一
方しか除去し得ないのであった。(Problems to be solved by the invention) However, the ultraviolet absorbing glass used in the conventional lighting equipment does not have a function of blocking infrared rays having a wavelength of 800 nm or more, but rather transmits infrared rays from general soda glass. Further, the infrared absorbing glass or the infrared reflecting film does not have a function of blocking ultraviolet rays having a wavelength of 400 nm or less, transmits ultraviolet rays, and one filter can remove only one of the ultraviolet rays and the infrared rays.
本発明は上記問題点に鑑みなされたもので、紫外線およ
び赤外線を１枚のフィルタで遮断することができる照明
器具を提供することを目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture that can block ultraviolet rays and infrared rays with a single filter.
（問題点を解決するための手段） 本発明の照明器具は、光源およびこの光源に対設したフ
ィルタとを設けたものであり、このフィルタはガラス基
板の一面に赤外線遮断層を、また、他面に紫外線遮断層
を設けたものである。(Means for Solving the Problems) The luminaire of the present invention is provided with a light source and a filter opposed to the light source. The filter has an infrared blocking layer on one surface of the glass substrate, and another filter. An ultraviolet blocking layer is provided on the surface.
（作用） そして、本発明によれば光源から放射された光は前面の
フィルタを透過して照射するのであり、このフィルタを
透過する際に、ガラス基板の一面の赤外線遮断層で赤外
線は遮断され、前記ガラス基板の他面の紫外線遮断層で
は紫外線が遮断され、１枚のフィルタで紫外線および赤
外線が除かれた可視光線域のみが照射される。(Operation) And according to the present invention, the light emitted from the light source passes through the filter on the front surface and is radiated. When the light passes through this filter, infrared rays are blocked by the infrared blocking layer on one surface of the glass substrate. The ultraviolet ray blocking layer on the other surface of the glass substrate blocks ultraviolet rays, and only one visible ray region where ultraviolet rays and infrared rays are removed by one filter is irradiated.
（実施例） 以下、本発明の照明器具を図面を参照して説明する。(Example) Hereinafter, the lighting fixture of this invention is demonstrated with reference to drawings.
１は光源で、例えばメタルハライドランプなどの高輝度
放電ランプなどにて構成され、この光源１は反射体２に
内包されている。この反射体２は前面に照射口３を開口
した二次曲面の回転体にて構成され、両側部には光源１
を装着するランプソケット４が相対向って設けられてい
る。Reference numeral 1 denotes a light source, which is composed of, for example, a high-intensity discharge lamp such as a metal halide lamp, and the light source 1 is enclosed in a reflector 2. This reflector 2 is composed of a quadric curved rotating body having an irradiation port 3 opened on the front surface, and the light source 1 is provided on both sides.
Lamp sockets 4 for mounting the lamps are provided facing each other.
次に５は前記反射体２の照射口３に取り付けられたフィ
ルタで、このフィルタ５のガラス基板６の光源側の面に
は、例えば酸化インジウム（In2 O2）、酸化錫（Sn
O2）等のITO膜からなり赤外線反射膜からなる赤外線遮
断層７を設け、外側には、例えばフッ素樹脂系またはシ
リカ（SiO2）系塗料に例えばベンゾフェノン、ベンゾト
リアロールなどの紫外線吸収剤を塗布した紫外線吸収膜
からなる紫外線遮断層８を設けたものである。Next, 5 is a filter attached to the irradiation port 3 of the reflector 2. The surface of the glass substrate 6 on the light source side of the filter 5 is, for example, indium oxide (In 2 O 2 ) or tin oxide (Sn).
The infrared ray blocking layer 7 formed of an infrared ray reflection film made of an ITO film such as O 2 ) is provided, and an ultraviolet absorber such as benzophenone or benzotrialol is applied to the outside on a fluororesin-based or silica (SiO 2 ) -based coating material. An ultraviolet blocking layer 8 composed of the applied ultraviolet absorbing film is provided.
次にこの実施例の作用について説明する。Next, the operation of this embodiment will be described.
光源１から放射された光は、直接または反射体２に反射
されることにより前面のフィルタ５方向へ放射される。The light emitted from the light source 1 is emitted toward the front filter 5 either directly or by being reflected by the reflector 2.
そして第３図に示すようにこのフィルタ５のガラス基板
６の一面の赤外線遮断層７で例えば波長800nm以上の赤
外線を反射によって遮断し、他面の紫外線遮断層８で例
えば400nm以下の紫外線を吸収して遮断するのである。As shown in FIG. 3, the infrared ray blocking layer 7 on one surface of the glass substrate 6 of the filter 5 blocks infrared rays having a wavelength of 800 nm or more by reflection, and the ultraviolet ray blocking layer 8 on the other surface absorbs ultraviolet rays of 400 nm or less. And shut it off.
また赤外線遮断層７および紫外線遮断層８はそれぞれ赤
外線または紫外線吸収層および反射層でよく上記実施例
に限らず赤外線遮断層７には、フッ化マグネシウム（Mg
F2）、酸化チタン（TiO2）等を多層蒸着した多層干渉膜
からなる赤外線反射膜、または硼珪酸系ガラス、リン酸
系ガラスに酸化鉄（FeO3）を添加した赤外線吸収ガラス
でもよく、紫外線遮断層８にはフッ化マグネシウム（Mg
F2）、酸化チタン（TiO2）等を多層蒸着した多層干渉膜
からなる紫外線反射膜、または酸化セリウム（CeO2）な
ど紫外線吸収機能をもつ物質をカリ石灰ガラスなどに添
加した紫外線吸収ガラスでもよい。Further, the infrared ray blocking layer 7 and the ultraviolet ray blocking layer 8 may be an infrared ray or ultraviolet ray absorbing layer and a reflecting layer, respectively. The infrared ray blocking layer 7 and the infrared ray blocking layer 7 may be magnesium fluoride (Mg).
F 2 ), titanium oxide (TiO 2 ) or the like may be an infrared reflection film formed of a multilayer interference film, or borosilicate glass or phosphoric acid glass to which iron oxide (FeO 3 ) is added. Magnesium fluoride (Mg
F 2 ), titanium oxide (TiO 2 ), etc. UV-reflecting film consisting of multi-layer interference film, or UV-absorbing glass in which a substance with UV-absorbing function such as cerium oxide (CeO 2 ) is added to potassium lime glass. Good.
さらに、フィルタ５のガラス基板６の光源１側の面に赤
外線遮断層７を設け、外面に紫外線遮断層８を設けるこ
とにより、ガラス基板６自体の温度、特にガラス基板６
の外面の温度を低くすることができ、比較的高温に弱い
外面の紫外線遮断層８を保護する効果を有する。Further, by providing the infrared blocking layer 7 on the surface of the glass substrate 6 of the filter 5 on the light source 1 side and providing the ultraviolet blocking layer 8 on the outer surface, the temperature of the glass substrate 6 itself, particularly the glass substrate 6
The temperature of the outer surface can be lowered, and it has the effect of protecting the ultraviolet blocking layer 8 on the outer surface, which is relatively weak to high temperatures.
このようにガラス基板６の一面の赤外線遮断層７により
赤外線を遮断し、他面の紫外線遮断層８で紫外線を遮断
することにより、不必要な波長域を遮断し、赤外線によ
る被照射面の温度上昇、紫外線による褪色を防止でき
る。Thus, by blocking the infrared rays by the infrared blocking layer 7 on one surface of the glass substrate 6 and blocking the ultraviolet rays by the ultraviolet blocking layer 8 on the other surface, unnecessary wavelength regions are blocked and the temperature of the surface to be irradiated by the infrared rays is blocked. Can prevent rising and fading due to ultraviolet rays.
さらに、１枚のフィルタで紫外線および赤外線を同時に
遮断できるので安価である。Further, since it is possible to block ultraviolet rays and infrared rays simultaneously with one filter, it is inexpensive.
本発明の照明器具によれば、赤外線を遮断することによ
り被照射面の温度上昇、紫外線を遮断することにより被
照射面の褪色の防止が図れ、また、１枚のフィルタで赤
外線および紫外線を同時に遮断できるので経済的であ
る。According to the luminaire of the present invention, by blocking the infrared rays, the temperature of the irradiated surface rises, and by blocking the ultraviolet rays, the fading of the irradiated surface can be prevented, and the infrared rays and the ultraviolet rays can be simultaneously treated by one filter. It is economical because it can be shut off.
第１図は本発明の照明器具の一実施例の縦断面図、第２
図は同上正面図、第３図は同上フィルタの断面図であ
る。 １…光源、５…フィルタ、６…ガラス基板、７…赤外線
遮断層、８…紫外線遮断層。FIG. 1 is a vertical cross-sectional view of an embodiment of the luminaire of the present invention, FIG.
The figure is a front view of the same as above, and FIG. 3 is a sectional view of the filter of the same as above. DESCRIPTION OF SYMBOLS 1 ... Light source, 5 ... Filter, 6 ... Glass substrate, 7 ... Infrared shielding layer, 8 ... Ultraviolet shielding layer.
Claims (1)
るとともにこのガラス基板の他面に紫外線遮断層を設け
たことを特徴とする照明器具。1. A light source and a filter provided opposite to the light source, wherein the filter has an infrared ray blocking layer on one surface of a glass substrate and an ultraviolet ray blocking layer on the other surface of the glass substrate. Lighting equipment characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5574586A JPH0679442B2 (en) | 1986-03-13 | 1986-03-13 | lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5574586A JPH0679442B2 (en) | 1986-03-13 | 1986-03-13 | lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62213005A JPS62213005A (en) | 1987-09-18 |
| JPH0679442B2 true JPH0679442B2 (en) | 1994-10-05 |
Family
ID=13007391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5574586A Expired - Lifetime JPH0679442B2 (en) | 1986-03-13 | 1986-03-13 | lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679442B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01119110U (en) * | 1988-02-04 | 1989-08-11 | ||
| JPH0636610A (en) * | 1992-07-15 | 1994-02-10 | Daiwa Raiteingu:Kk | Lighting system |
| JP2008016394A (en) * | 2006-07-07 | 2008-01-24 | Sony Corp | Light source device, lighting device, and projector device |
-
1986
- 1986-03-13 JP JP5574586A patent/JPH0679442B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62213005A (en) | 1987-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |