JPS645288Y2 - - Google Patents
Info
- Publication number
- JPS645288Y2 JPS645288Y2 JP1984176265U JP17626584U JPS645288Y2 JP S645288 Y2 JPS645288 Y2 JP S645288Y2 JP 1984176265 U JP1984176265 U JP 1984176265U JP 17626584 U JP17626584 U JP 17626584U JP S645288 Y2 JPS645288 Y2 JP S645288Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- diffusion panel
- light source
- panel
- reflector
- 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
- 238000009792 diffusion process Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
この考案は天井などに埋込み固定する照明器具
に関するものである。[Detailed description of the invention] [Technical field] This invention relates to a lighting fixture that is embedded and fixed in a ceiling or the like.
従来の照明器具は、第4図に示すように、上下
開口の筒形の凹曲反射板1の上部開口に拡散パネ
ル2を取付け、この拡散パネル2の後方にクリア
型ランプ(HIDランプ)3を配置している。こ
の場合、クリア型ランプ3は拡散パネル2と平行
に配置した透明ガラス管3aの管軸方向中央部分
に発光管3bを収容配置してなるものであり、一
対のソケツト4a,4bに装着される。なお、器
具本体の図示は省いている。
As shown in FIG. 4, in the conventional lighting equipment, a diffusion panel 2 is attached to the upper opening of a cylindrical concave reflector 1 with upper and lower openings, and a clear type lamp (HID lamp) 3 is installed behind this diffusion panel 2. are placed. In this case, the clear type lamp 3 is made up of a transparent glass tube 3a arranged parallel to the diffusion panel 2, and an arc tube 3b housed in the center of the tube axis, and is attached to a pair of sockets 4a and 4b. . Note that the illustration of the main body of the instrument is omitted.
このような照明器具は、点光源であるクリア型
ランプ3の発光管3bの光を拡散パネル2で拡散
させることにより平面光源を作り、この平面光源
の光を凹曲反射板1で反射して下方の床面等を照
明するようになつている。 Such lighting equipment creates a plane light source by diffusing the light from the arc tube 3b of the clear lamp 3, which is a point light source, with the diffusion panel 2, and reflects the light of this plane light source with the concave reflection plate 1. It is designed to illuminate the floor below.
しかしながら、このような従来の照明器具は、
発光管(光源)3bからの直接光のみを拡散パネ
ル2に照射するだけであるため、拡散パネル2の
パネル面の輝度が光源中心から離れるほど低くな
り、すなわち拡散パネル2の中央部は矢印A1,
A2で示すように輝度が高いが、周縁部は矢印B1,
B2で示すように輝度が低くなり、この結果第5
図Aに示すように拡散パネル2の周縁部からの光
量が少なく(矢印の長さが光量を示す)、したが
つて配光が第5図Bに示すように狭いという問題
がある。 However, such conventional lighting equipment
Since only the direct light from the arc tube (light source) 3b is irradiated onto the diffusion panel 2, the brightness of the panel surface of the diffusion panel 2 decreases as it moves away from the center of the light source. 1 ,
The brightness is high as shown by A 2 , but the peripheral area is marked by arrow B 1 ,
As shown in B 2 , the brightness decreases, and as a result, the fifth
As shown in FIG. 5A, there is a problem that the amount of light from the peripheral portion of the diffusion panel 2 is small (the length of the arrow indicates the amount of light), and therefore the light distribution is narrow as shown in FIG. 5B.
この考案は、配光を広げ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 purpose of this invention is to provide a lighting fixture that can widen the light distribution.
この考案の照明器具は、上下開口の筒形の下部
反射板と、この下部反射板の上部開口に取付けた
拡散パネルと、この拡散パネルの後方に配置して
前記拡散パネルに光を照射する点光源と、この点
光源の光を反射して前記拡散パネルの周縁部に照
射する上部反射板とを備える構成にしたことを特
徴とする。
The lighting equipment of this invention includes a cylindrical lower reflector with upper and lower openings, a diffusion panel attached to the upper opening of the lower reflector, and a diffusion panel placed behind the diffusion panel to irradiate light to the diffusion panel. The present invention is characterized in that it includes a light source and an upper reflecting plate that reflects light from the point light source and irradiates the peripheral edge of the diffusion panel.
このように、上下開口の筒形の下部反射板の上
部開口に拡散パネルを取付け、拡散パネルの後方
に点光源を配置しこの点光源を包囲するように上
部反射板を配置し上部反射板によつて点光源の光
を拡散パネルの周縁部に照射することにより点光
源の直接光と上部反射板からの間接光とによりパ
ネル面の輝度をほぼ均一にし、パネル面から照射
される光を下部反射板によつて反射して下方を照
明するようにしたため、配光を広げることができ
る。 In this way, a diffusion panel is attached to the upper opening of a cylindrical lower reflector with upper and lower openings, a point light source is placed behind the diffuser panel, and an upper reflector is placed to surround this point light source. Therefore, by irradiating the periphery of the diffuser panel with the light from the point light source, the brightness of the panel surface is made almost uniform by the direct light from the point light source and the indirect light from the upper reflector, and the light irradiated from the panel surface is distributed to the lower part. Since the light is reflected by the reflector and illuminated downward, the light distribution can be expanded.
実施例
この考案の一実施例を第1図ないし第3図に基
づいて説明する。この照明器具は、第1図および
第2図に示すように、上下開口の筒形の下部凹曲
反射板1の上部開口に拡散パネル2を取付け、こ
の拡散パネル2の後方にクリア型ランプ(HID
ランプ)3を配置し、このクリア型ランプ3の発
光管3bの光を拡散パネル2の周縁部に重点的に
照射するように回転対称形の上部凹曲反射板5を
配置している。この場合、クリア型ランプ3は拡
散パネル2と平行配置した透明ガラス管3aの管
軸方向中央部に発光管3bを収容配置してなり、
上部凹曲反射板5を横方向に貫通させた状態でソ
ケツト4a,4bに装着されている。Embodiment An embodiment of this invention will be explained based on FIGS. 1 to 3. As shown in FIGS. 1 and 2, in this lighting fixture, a diffusion panel 2 is attached to the upper opening of a cylindrical lower concave reflector 1 with upper and lower openings, and a clear lamp ( H.I.D.
A rotationally symmetrical upper concave reflection plate 5 is arranged so that the light from the arc tube 3b of the clear type lamp 3 is focused on the peripheral edge of the diffusion panel 2. In this case, the clear lamp 3 is constructed by housing a light emitting tube 3b in the center of a transparent glass tube 3a in the axial direction of the transparent glass tube 3a, which is arranged parallel to the diffusion panel 2.
It is attached to the sockets 4a and 4b with the upper concave reflecting plate 5 passed through in the lateral direction.
この照明器具は、点光源であるクリア型ランプ
3の発光管3bの光を上部凹曲反射板5によつて
拡散パネル2の周縁部に重点的に反射させること
により発光管3bからの直接光と合わせて光を拡
散パネル2にほぼ均一に照射し、この光を拡散さ
せることにより輝度がほぼ均一な平面光源を作り
この平面光源の光を下部凹曲反射板1で反射して
下方の床面などを照明するようになつている。 This lighting equipment reflects the light from the arc tube 3b of the clear lamp 3, which is a point light source, onto the periphery of the diffuser panel 2 by the upper concave reflector 5, so that direct light from the arc tube 3b is reflected. In addition, the light is irradiated almost uniformly onto the diffusion panel 2, and by diffusing this light, a flat light source with almost uniform brightness is created, and the light from this flat light source is reflected by the lower concave reflector 1 to illuminate the floor below. It is designed to illuminate surfaces, etc.
このように、発光管3bの光を上部凹曲反射板
5によつて矢印Cで示すように拡散パネル2の周
縁部に反射させることにより拡散パネル2にほぼ
均一に光を照射しているため、拡散パネル2のパ
ネル面の周縁部の輝度を矢印D1,D2で示すよう
に中央部の輝度と同じ程度まで高めることがで
き、この結果第3図Aに示すように拡散パネル2
の周縁部からの光量が増加し(矢印の長さが光量
を示す)、したがつて配光が第3図Bに示すよう
に広くなる。 In this way, the light from the arc tube 3b is reflected onto the peripheral edge of the diffusion panel 2 as shown by the arrow C by the upper concave reflection plate 5, so that the light is almost uniformly irradiated onto the diffusion panel 2. , the brightness of the peripheral part of the panel surface of the diffusion panel 2 can be increased to the same level as the brightness of the central part, as shown by arrows D 1 and D 2 , and as a result, the brightness of the diffusion panel 2 can be increased as shown in FIG. 3A.
The amount of light from the periphery increases (the length of the arrow indicates the amount of light), and therefore the light distribution becomes wider as shown in FIG. 3B.
また、発光管3bの方向性による配光特性の方
向性も拡散パネル2によつて緩和され、遮光角も
下部凹曲反射板1の全周にわたつてほぼ同じにす
ることができる。また、拡散パネル2によつて光
を拡散しているため、下部凹曲反射板1の反射面
を鏡面仕上げにしても床面等の照度を均一化で
き、したがつて下部凹曲反射板1を見たときのグ
レアも少なくできる。 Further, the directionality of the light distribution characteristic due to the directionality of the arc tube 3b is relaxed by the diffusion panel 2, and the light shielding angle can be made almost the same over the entire circumference of the lower concave reflector 1. In addition, since the light is diffused by the diffusion panel 2, even if the reflective surface of the lower concave reflector 1 is mirror-finished, the illuminance of the floor surface, etc. can be made uniform, and therefore the lower concave reflector 1 It also reduces glare when looking at the screen.
この考案の照明器具は、点光源の光を上部反射
板で反射させることにより拡散パネルに光をほぼ
均一に照射して拡散パネルのパネル面の輝度をほ
ぼ均一にするようにしたため、配光を広げること
ができる。
The lighting equipment of this invention reflects the light from the point light source with the upper reflector to irradiate the diffuser panel with light almost uniformly, making the brightness of the panel surface of the diffuser panel almost uniform, which improves the light distribution. Can be expanded.
第1図はこの考案の一実施例の照明器具のラン
プ管軸方向と直交する方向から見た断面図、第2
図は同じくランプ管軸方向と平行な方向から見た
断面図、第3図A,Bは実施例の配光の説明図、
第4図は従来の照明器具のランプ管軸方向と直交
する方向から見た断面図、第5図A,Bは従来例
の配光の説明図である。
1……下部凹曲反射板、2……拡散パネル、3
……クリア型ランプ(点光源)、5……上部凹曲
反射板。
Figure 1 is a sectional view of a lighting fixture according to an embodiment of this invention, viewed from a direction perpendicular to the axis of the lamp tube;
The figure is also a cross-sectional view seen from a direction parallel to the lamp tube axis direction, and Figures 3A and 3B are explanatory diagrams of the light distribution of the embodiment.
FIG. 4 is a cross-sectional view of a conventional lighting device viewed from a direction perpendicular to the lamp tube axis direction, and FIGS. 5A and 5B are illustrations of light distribution in the conventional example. 1... Lower concave reflector, 2... Diffusion panel, 3
...Clear lamp (point light source), 5...Top concave reflector.
Claims (1)
板の上部開口に取付けた拡散パネルと、この拡散
パネルの後方に配置して前記拡散パネルに光を照
射する点光源と、この点光源の光を反射して前記
拡散パネルの周縁部に照射する上部反射板とを備
えた照明器具。 The lighting fixture comprises a cylindrical lower reflector having upper and lower openings, a diffusion panel attached to the upper opening of the lower reflector, a point light source disposed behind the diffusion panel and irradiating light onto the diffusion panel, and an upper reflector that reflects the light from the point light source and irradiates it onto the peripheral portion of the diffusion panel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984176265U JPS645288Y2 (en) | 1984-11-20 | 1984-11-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984176265U JPS645288Y2 (en) | 1984-11-20 | 1984-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6190108U JPS6190108U (en) | 1986-06-12 |
JPS645288Y2 true JPS645288Y2 (en) | 1989-02-09 |
Family
ID=30733864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984176265U Expired JPS645288Y2 (en) | 1984-11-20 | 1984-11-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645288Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176261A (en) * | 1983-03-24 | 1984-10-05 | バイエル・アクチエンゲゼルシヤフト | Carbamates |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5636001Y2 (en) * | 1974-07-12 | 1981-08-25 |
-
1984
- 1984-11-20 JP JP1984176265U patent/JPS645288Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176261A (en) * | 1983-03-24 | 1984-10-05 | バイエル・アクチエンゲゼルシヤフト | Carbamates |
Also Published As
Publication number | Publication date |
---|---|
JPS6190108U (en) | 1986-06-12 |
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