JPS5845583U - Lighting equipment for display boards - Google Patents
Lighting equipment for display boardsInfo
- Publication number
- JPS5845583U JPS5845583U JP13926981U JP13926981U JPS5845583U JP S5845583 U JPS5845583 U JP S5845583U JP 13926981 U JP13926981 U JP 13926981U JP 13926981 U JP13926981 U JP 13926981U JP S5845583 U JPS5845583 U JP S5845583U
- Authority
- JP
- Japan
- Prior art keywords
- display
- display board
- display surface
- illumination lamp
- board
- 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
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
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
図面は本考案に係る表示板用照明器具の実施の態様を例
示し、第１図は表示板に対する照明灯位置を示す断面図
、第２図は全体の外観図、第３図は反射鏡を示す断面図
、第４図は反射鏡形状の決定方法を示す説明図、第５図
は設計された反射鏡形状を示す拡大断面図、第６図は第
５図の反射鏡による表示板の明るさを示すグラフ、第７
図は本□案遮光板の拡大図、第８図は遮光板変形例の拡
大図、第９図は本案のものの表示板の明るさを示すグラ
フである−
１・・・・・・表示板、１ａ・・・・・・表示面、２・
・・・・・照明灯、３・・；・・・反射鏡、３ａ・・・
・・・反射面、４・・・・・・遮光板。The drawings illustrate embodiments of the lighting fixture for display boards according to the present invention, with Fig. 1 being a cross-sectional view showing the position of the illumination light with respect to the display board, Fig. 2 being an overall external view, and Fig. 3 showing the reflector. 4 is an explanatory diagram showing the method for determining the reflector shape, FIG. 5 is an enlarged sectional view showing the designed reflector shape, and FIG. 6 is the brightness of the display board using the reflector in FIG. Graph showing the 7th
The figure is an enlarged view of the light shielding plate of the present □ plan, Figure 8 is an enlarged view of a modified example of the light shielding plate, and Figure 9 is a graph showing the brightness of the display board of the present proposal. , 1a...display surface, 2.
...Illuminating light, 3...; ...Reflector, 3a...
... Reflective surface, 4... Light shielding plate.
Claims (1)
前方下方位置に、前記表示板１の表示面１ａに対して平
行又はほぼ平行姿勢で蛍光灯などの管状照明灯２を表示
板１との相対位置固定状態に設け、♀の管状照明灯２上
方部又は下方部に、前記表示面１ａに向かって反射光を
照射する反射鏡３を照明灯２に対し位置固定状態に配置
し、この反射鏡３の反射面３ａを、反射光の全て又は大
部分が前記表示面１ａの下部又は上部に照射されるよう
な曲面に構成しである表示板用照明器具において、前記
照明灯２から′前記表示面１ａの上部又は下部に向かう
直接光光路部で前記反射面３ａの曲面方向一端の延長線
上相当位置に、前記直接光の一部を透過させ、かつ、残
部を反射させる遮光板４を設けである事を特徴とする表
示板用照明器具。A tubular illumination lamp 2 such as a fluorescent lamp is mounted on the display board 1 at a position above or below the front of the display surface 1a of the display board 1, such as a blackboard or a bulletin board, in a parallel or almost parallel attitude to the display surface 1a of the display board 1. A reflecting mirror 3 for irradiating reflected light toward the display surface 1a is arranged in a fixed position relative to the illumination lamp 2 above or below the female tubular illumination lamp 2, and In the lighting equipment for a display board, the reflecting surface 3a of the reflecting mirror 3 is configured to be a curved surface such that all or most of the reflected light is irradiated onto the lower or upper part of the display surface 1a. 'A light shielding plate 4 that transmits a part of the direct light and reflects the remaining part at a position corresponding to the extension line of one end in the curved surface direction of the reflective surface 3a in the direct light path toward the upper or lower part of the display surface 1a. A lighting fixture for a display board, characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926981U JPS5845583U (en) | 1981-09-19 | 1981-09-19 | Lighting equipment for display boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13926981U JPS5845583U (en) | 1981-09-19 | 1981-09-19 | Lighting equipment for display boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5845583U true JPS5845583U (en) | 1983-03-26 |
Family
ID=29932466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13926981U Pending JPS5845583U (en) | 1981-09-19 | 1981-09-19 | Lighting equipment for display boards |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845583U (en) |
-
1981
- 1981-09-19 JP JP13926981U patent/JPS5845583U/en active Pending
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