JPH049688Y2 - - Google Patents
Info
- Publication number
- JPH049688Y2 JPH049688Y2 JP1985078746U JP7874685U JPH049688Y2 JP H049688 Y2 JPH049688 Y2 JP H049688Y2 JP 1985078746 U JP1985078746 U JP 1985078746U JP 7874685 U JP7874685 U JP 7874685U JP H049688 Y2 JPH049688 Y2 JP H049688Y2
- Authority
- JP
- Japan
- Prior art keywords
- semi
- transparent
- lamp
- transparent 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
- 238000002834 transmittance Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
【考案の詳細な説明】 本考案は照明器具に関するものである。[Detailed explanation of the idea] The present invention relates to lighting equipment.
（背景技術） 第１回は従来例を示し、ダウンライトである。(Background technology) The first part shows a conventional example, which is a downlight.
天井１に埋込まれた器具本体２の内に、ランプ
３の上方から側方の近傍を囲つて拡散反射板を有
し、拡散反射板４の開放下面を覆つて半透明の半
透光パネル５を有し、この半透光パネル５の下方
に鏡面反射板６を有して成る。ランプ３から上方
及び側方への光は拡散反射板４で拡散されて下方
へ照射されると共に、斜下方への光は鏡面反射板
６により制御され斜下方へ照射される。しかしな
がら鏡面反射板６で反射された光は制御されてい
るため、被照射面に照度むらが生じる。そのため
にすりがらす等の半透光パネル５を介しわずかに
拡散性を持たせている。しかしながらかかる半透
光パネル５を用いることにより、全ての光の透過
率が低下し器具効率が低下していた。 Inside the fixture body 2 embedded in the ceiling 1, there is a diffuse reflector that surrounds the lamp 3 from above to the sides, and a semi-transparent panel that covers the open lower surface of the diffuse reflector 4. 5, and a specular reflection plate 6 is provided below the semi-transparent panel 5. Light from the lamp 3 upward and sideways is diffused by a diffuse reflection plate 4 and irradiated downward, and light diagonally downward is controlled by a specular reflection plate 6 and irradiated diagonally downward. However, since the light reflected by the specular reflector 6 is controlled, uneven illuminance occurs on the irradiated surface. For this purpose, a semi-transparent panel 5 such as a glass plate is used to provide a slight diffusion property. However, by using such a semi-transparent panel 5, the transmittance of all light was reduced and the efficiency of the device was reduced.
（目的）
本考案は上記の点に鑑みてなされたもので、被
照射面に照度むらが生じない様にすると共に器具
効率を向上させることを目的とする。(Purpose) The present invention was made in view of the above points, and aims to prevent uneven illuminance from occurring on the irradiated surface and to improve the efficiency of the device.
（実施例）
第２図及び第３図は本考案の実施例を示し、上
記第１図の従来例に於ける半透光パネル５に代え
一部のみ半透光性にした半透光パネル５を用いて
成る照明器具であり、他の全体構成は第１図に示
すと同様である。半透光パネル５はランプ３と鏡
面反射板６の上端を結ぶ線Ａと下端を結ぶ線Ｂと
により囲まれた範囲のは半透光性とし、他は透明
に形成してある。(Embodiment) FIGS. 2 and 3 show an embodiment of the present invention, in which a semi-transparent panel in which only a portion is made semi-transparent in place of the semi-transparent panel 5 in the conventional example shown in FIG. 5, and the other overall configuration is the same as that shown in FIG. The semi-transparent panel 5 is semi-transparent in the area surrounded by a line A connecting the upper ends of the lamp 3 and the specular reflector 6 and a line B connecting the lower ends, and is transparent in the other areas.
この様に半透光パネル５を構成したものでは、
鏡面反射板６に入射するランプ３からの光は半透
光部７を透過しわずかに拡散性を持ち、被照射面
に照度むらが生じず、ランプ３からの他の光は透
明部８も透過し、全体としての光の透過率は向上
する。 With the semi-transparent panel 5 configured in this way,
The light from the lamp 3 that enters the specular reflector 6 passes through the semi-transparent part 7 and has a slight diffusive property, so that uneven illuminance does not occur on the irradiated surface, and other light from the lamp 3 also passes through the transparent part 8. The light transmittance is improved as a whole.
（効果）
本考案は上記の如く構成され、ランプ３の近傍
に拡散反射板４を設け、該拡散反射板４の開放面
に半透光パネル５を設け、該半透光パネル５の前
方に鏡面反射板６を設けて成る照明器具に於て、
半透光パネル５はランプ３と鏡面反射板６の上端
及び下端を結ぶ線で囲まれた範囲を半透光性の半
透光部７とし、他を透明な透明部８としたことに
より、鏡面反射板６に入射するランプ３からの光
は半透光部７を透過しわずかに拡散性を持ち被照
射面に照度むらが生じず、ランプ３からの他の光
は透明部８も透過し全体としての光の透過率が向
上し器具効率が向上する。(Effects) The present invention is constructed as described above, with a diffuse reflection plate 4 provided near the lamp 3, a semi-transparent panel 5 provided on the open surface of the diffuse reflection plate 4, and a semi-transparent panel 5 provided in front of the semi-transparent panel 5. In a lighting fixture provided with a specular reflector 6,
In the semi-transparent panel 5, the area surrounded by the line connecting the lamp 3 and the upper and lower ends of the specular reflector 6 is a semi-transparent part 7, and the other part is a transparent part 8. The light from the lamp 3 that enters the specular reflection plate 6 is transmitted through the semi-transparent part 7 and has a slight diffusive property, so that there is no unevenness in illuminance on the irradiated surface, and other light from the lamp 3 is also transmitted through the transparent part 8. This improves the overall light transmittance and improves the efficiency of the fixture.
第１図は従来例を示す断面正面図、第２図及び
第３図は本考案の実施例にかかる半透光パネルを
示し、第２図は正面図、第３図は平面図。
１……天井、２……器具本体、３……ランプ、
４……拡散反射板、５……半透光パネル、６……
鏡石反射板、７……半透光部、８……透明部。
FIG. 1 is a sectional front view showing a conventional example, FIGS. 2 and 3 are semi-transparent panels according to an embodiment of the present invention, FIG. 2 is a front view, and FIG. 3 is a plan view. 1... Ceiling, 2... Fixture body, 3... Lamp,
4... Diffuse reflector, 5... Semi-transparent panel, 6...
Mirror stone reflecting plate, 7...semi-transparent part, 8... transparent part.
Claims (1)
板の開放面に半透光パネルを設け、該半透光パネ
ルの前方に鏡面反射板を設けて成る照明器具に於
て、半透光パネルはランプと鏡面反射板の上端及
び下端を結ぶ線で囲まれた範囲を半透光性とし他
を透明としたことを特徴とする照明器具。 In a lighting fixture, a diffuse reflector is provided near the lamp, a semi-transparent panel is provided on the open surface of the diffuse reflector, and a specular reflector is provided in front of the semi-transparent panel. is a lighting device characterized in that the area surrounded by the line connecting the lamp and the upper and lower ends of the specular reflector is semi-transparent and the rest is transparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985078746U JPH049688Y2 (en) | 1985-05-27 | 1985-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985078746U JPH049688Y2 (en) | 1985-05-27 | 1985-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61193610U JPS61193610U (en) | 1986-12-02 |
| JPH049688Y2 true JPH049688Y2 (en) | 1992-03-11 |
Family
ID=30623010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985078746U Expired JPH049688Y2 (en) | 1985-05-27 | 1985-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049688Y2 (en) |
-
1985
- 1985-05-27 JP JP1985078746U patent/JPH049688Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61193610U (en) | 1986-12-02 |
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