JP2784974B2 - Indirect lighting fixtures - Google Patents
Indirect lighting fixturesInfo
- Publication number
- JP2784974B2 JP2784974B2 JP4115975A JP11597592A JP2784974B2 JP 2784974 B2 JP2784974 B2 JP 2784974B2 JP 4115975 A JP4115975 A JP 4115975A JP 11597592 A JP11597592 A JP 11597592A JP 2784974 B2 JP2784974 B2 JP 2784974B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- lamp
- reflector
- ceiling
- ceiling surface
- 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 - Fee Related
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ホール、通路、廊下等
の壁面に配設された長尺状の照明灯からの放射光を利用
し、被照明領域を間接的に照明する間接照明器具に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indirect lighting apparatus for indirectly illuminating an area to be illuminated by using radiation from a long illuminating lamp provided on a wall of a hall, a passage, a corridor, or the like. About.
【０００２】[0002]
【従来の技術】天井懐部や、壁面に照明器具を直視し得
ないよう建築構造と一体化させて配設してなる建築化照
明方式は、グレアの障害を防止するとともに、室内空間
から照明器具の存在を意識させないため、ホール、廊
下、通路、あるいは、ラウンジ等に数多く採用されてい
る。2. Description of the Related Art An architectural lighting system in which a lighting fixture is integrated with a building structure so as to prevent direct viewing of a lighting fixture on a ceiling or a wall surface prevents glare obstacles and illuminates indoor space. In order not to be conscious of the existence of equipment, it is widely used in halls, corridors, passageways, lounges, and the like.
【０００３】かかる間接照明方式を、図８に基づいて説
明すると、通路８０の両側壁面上部の設置壁８３、８３
により形成される照明灯配設部８２、８２に、２本１組
みとする螢光灯８６、８６を配設する。螢光灯８６、８
６から放射される光８８・・は、螢光灯８６、８６の直
上天井面８１を照明する一方、天井面８１の中央部に向
けて放射される光８７、８７により天井面８１を間接照
明し、その反射光が床面８５を照明する。[0003] The indirect lighting system will be described with reference to FIG. 8.
Fluorescent lamps 86, 86, which are set as a pair, are disposed in the illumination lamp disposing portions 82, 82 formed by the above. Fluorescent lights 86, 8
6 illuminates the ceiling surface 81 immediately above the fluorescent lamps 86, 86, while indirectly illuminating the ceiling surface 81 with light 87, 87 emitted toward the center of the ceiling surface 81. Then, the reflected light illuminates the floor 85.
【０００４】[0004]
【発明が解決しようとする課題】ところが、螢光灯８
８、８８の直上部分はその放射光により照明されるた
め、その輝度が高くなるのに反し、天井面８１の中心側
に十分に光が飛んで行かないため、天井面の大部分、及
び床面が比較的暗くなり、全体として暗い雰囲気になっ
てしまう他、螢光灯直上部の輝度を減少させるために、
有効高さを高く確保して螢光灯を天井面から離隔配設す
る必要があった。しかも、間口幅をより広く拡幅した通
路に設置する場合には、天井面に到達する光量がさらに
不足し、一層暗くなる。さらに、螢光灯８６、８６の下
面に反射板を設けると、螢光灯直上部の輝度が更に高く
なり、その余の天井面への照射光量は依然として不足し
たままとなり、照明器具設置領域上部と天井面中心部と
の輝度比が一層高くなる。However, the fluorescent lamp 8
8 and 88 are illuminated by the radiated light, so that the brightness is increased. On the other hand, the light does not sufficiently fly toward the center of the ceiling surface 81. The surface becomes relatively dark, resulting in a dark atmosphere as a whole, and in order to reduce the brightness just above the fluorescent lamp,
It was necessary to secure the effective height high and arrange the fluorescent lamps away from the ceiling surface. In addition, when the apparatus is installed in a passage having a wider frontage, the amount of light reaching the ceiling surface becomes further insufficient and the area becomes darker. Further, when the reflectors are provided on the lower surfaces of the fluorescent lamps 86, 86, the brightness immediately above the fluorescent lamps is further increased, and the amount of light irradiated on the ceiling surface is still insufficient. And the luminance ratio between the ceiling and the center of the ceiling surface is further increased.
【０００５】本発明は、上述した課題に鑑みてなされた
もので、その目的とするところは、照明器具配設位置上
部の被照明領域に遮光板の影を形成させずに柔らかな感
じで照明するとともに、天井面全体を明るく照明し、こ
れにより、柔らかな光で比較的明るい照明空間を形成す
る間接照明器具を提供するにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to provide a soft feeling of lighting without forming a shadow of a light-shielding plate in an illuminated area above a lighting fixture installation position. Another object of the present invention is to provide an indirect lighting device that illuminates the entire ceiling surface brightly, thereby forming a relatively bright lighting space with soft light.
【０００６】さらに、本発明は、照明灯の端部近傍から
の放射光を背面反射板にて反射させ、天井面をより効率
良く照明することを目的とする。Another object of the present invention is to radiate light from the vicinity of the end of the lamp with a back reflector to more efficiently illuminate the ceiling surface.
【０００７】また、本発明は、背面反射板の背面側に安
定器を配設し、間接照明器具の天井面に対する有効高さ
を減少することを目的とする。Another object of the present invention is to provide a ballast on the rear side of the rear reflector to reduce the effective height of the indirect lighting fixture relative to the ceiling surface.
【０００８】[0008]
【課題を解決するための手段】本発明は、建造物の壁面
等の設置領域に配設された照明器具により天井面、床面
等を間接照明する間接照明器具において、設置領域に沿
って水平方向に配設された長尺状の照明灯の背面に設け
た鏡面状の背面反射板と、照明灯長手方向の床面方向側
領域に配設され、照明灯からの照射光を天井面に向けて
反射する鏡面状の天井面反射板と、背面反射板の天井面
側の長手方向端部に接続された多数の穿孔を備える遮光
板とを備え、この遮光板は、この遮光板の、上記長手方
向端部とは反対側の長手方向端部にほぼ等間隔にてＶ字
状の切り欠き部分を備え、切り欠き部分の面積と、切り
残された部分の面積とをほぼ等しくするとともに、切り
欠き部分の面積がその切り欠き部分形成領域の天井面に
影を生じさせないような光量を通過させ得る大きさに形
成されている。SUMMARY OF THE INVENTION The present invention relates to an indirect lighting device for indirectly illuminating a ceiling surface, a floor surface, and the like by a lighting device disposed in an installation area such as a wall surface of a building. A mirror-like rear reflector provided on the back of a long illumination lamp arranged in the direction, and a floor-side area in the longitudinal direction of the illumination lamp, the irradiation light from the illumination lamp on the ceiling surface A mirror-like ceiling-surface reflector that reflects toward, and a light-shielding plate having a number of perforations connected to the ceiling-side longitudinal end portion of the rear-surface reflector, and the light-shielding plate, A V-shaped notch is provided at substantially equal intervals at the longitudinal end opposite to the longitudinal end, and the area of the notch is substantially equal to the area of the uncut part. , The area of the notch does not create a shadow on the ceiling surface of the notch forming area UNA is formed to a size capable of passing through the light quantity.
【０００９】また、本発明は、背面反射板の長手方向の
長さが、照明灯の端部近傍から照射される放射光を背面
反射板により反射させ得る長さを有するよう照明灯より
も長く形成されているものである。Further, in the present invention, the length of the back reflector in the longitudinal direction is longer than that of the illuminating lamp such that the radiated light emitted from near the end of the illuminating lamp can be reflected by the back reflector. It has been formed.
【００１０】さらに、本発明は、照明灯として螢光灯を
装着するとともに、背面反射板の背面側に安定器を配設
するよう構成したものである。Further, the present invention is configured such that a fluorescent lamp is mounted as an illuminating lamp and a ballast is disposed on the back side of the back reflector.
【００１１】[0011]
【作用】照明灯配設部分の上部天井面を、遮光板の切り
欠き部分、及び切り残し部分の穿孔を介し、照明灯から
の直接放射光と、背面反射板、及び天井面反射板からの
反射光とにより影を形成することなく照明し、また、照
明灯からの放射光、及び背面反射板、天井面反射板から
の反射光とにより、天井面全体を明るく照明する。[Function] The upper ceiling surface of the lighting lamp installation part is directly radiated from the lighting lamp through the notch part of the light shielding plate and the perforation of the uncut part, and is reflected from the back reflection plate and the ceiling reflection plate. The light is illuminated by the reflected light without forming a shadow, and the entire ceiling surface is brightly illuminated by the radiated light from the illumination lamp and the reflected light from the back reflector and the ceiling reflector.
【００１２】さらに、照明灯の端部近傍から放射される
光を背面反射板に照射し、ここからの反射光と、天井面
反射板からの反射光とににより天井面を照明する。Further, light radiated from the vicinity of the end of the lamp is radiated to the rear reflector, and the ceiling surface is illuminated by the reflected light from the rear reflector and the reflected light from the ceiling reflector.
【００１３】また、背面反射板の背面側に安定器を配設
し、照明器具の天井面に対する有効高さを減少する。In addition, a ballast is provided on the back side of the back reflector to reduce the effective height of the lighting fixture with respect to the ceiling surface.
【００１４】[0014]
【実施例】以下に本発明の詳細を、添付した図面に示す
実施例に基づいて説明する。図１は、通路に設置した本
発明の間接照明器具の一実施例の断面図、図２は間接照
明器具の側面図、図３は模式的に示す照明器具の斜視
図、図４は模式的に示す間接照明器具の平面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below based on embodiments shown in the accompanying drawings. 1 is a sectional view of an embodiment of the indirect lighting device of the present invention installed in a passage, FIG. 2 is a side view of the indirect lighting device, FIG. 3 is a perspective view of the lighting device schematically shown, and FIG. It is a top view of the indirect lighting fixture shown in FIG.
【００１５】図１において、例えば、通路１の両側壁
３、３に設置台５、５が設けられ、設置台５と天井面２
により形成される配設空間６、６には、天井面２に対し
適宜の有効高さを介在させて複数の間接照明器具７・
・、７・・が対向配設されている。この照明器具７に
は、両管球の先端側を連通させた形状のツイン式螢光灯
８が、通路１の側壁３に沿って水平方向に、かつ、その
両管球の周面が天井面２の中心部に対向するよう傾斜さ
せて配設されている。図２に示すように、ツイン式螢光
灯８の周面側の一部から背面側にかけて、ステンレス鏡
面仕上げ、クロームメッキ蒸着、あるいは、ミラー等の
鏡面状の背面反射板１０が配設されている。この背面反
射板１０の長手方向の長さは、螢光灯８の端部、即ち、
先端部８Ａ、及び口金近傍８Ｂから放射される光が無駄
無く背面反射板１０や、天井面反射板９により反射され
て天井面２を照明するように、螢光灯８の全長よりも長
く形成されている。そして、背面反射板１０の床面３方
向側に位置する長手方向の端部には、螢光灯８からの放
射光を天井面２に向けて飛ばし得る反射面積を持つ鏡面
状の天井面反射板９が設けられている。In FIG. 1, for example, installation tables 5 and 5 are provided on both side walls 3 and 3 of the passage 1, and the installation table 5 and the ceiling surface 2 are provided.
In the arrangement spaces 6 and 6 formed by the above, a plurality of indirect lighting fixtures 7.
・, 7 ・ ・ are arranged facing each other. The lighting fixture 7 includes a twin-type fluorescent lamp 8 having a shape in which the distal ends of both bulbs communicate with each other, in a horizontal direction along the side wall 3 of the passage 1, and with the peripheral surfaces of the two bulbs being ceilings. It is arranged to be inclined so as to face the center of the surface 2. As shown in FIG. 2, a mirror-like back reflector 10 such as a stainless mirror finish, chrome plating evaporation, or a mirror is provided from a part of the peripheral surface of the twin-type fluorescent lamp 8 to the back. I have. The length of the back reflector 10 in the longitudinal direction is equal to the end of the fluorescent lamp 8, ie,
It is formed longer than the entire length of the fluorescent lamp 8 so that the light radiated from the front end portion 8A and the vicinity 8B of the base are reflected by the rear reflector 10 and the ceiling reflector 9 without waste and illuminate the ceiling surface 2. Have been. At the longitudinal end located on the floor 3 direction side of the back reflector 10, a mirror-like ceiling reflection having a reflection area capable of causing the radiated light from the fluorescent lamp 8 to fly toward the ceiling 2. A plate 9 is provided.
【００１６】さらに、この背面反射板１０の天井面２側
に位置する長手方向端部１０Ｂには、図３に示すよう
に、内面を鏡面仕上げされるとともに、例えば、直径が
ほぼ３．５ｍｍの穿孔１３・・・を多数有し、その長手
方向端部１０Ｂとは反対側の長手方向端部の領域に等間
隔にてＶ字状の切り欠き部分１１Ｅ（図４、参照）を設
けた遮光板１１が図示しない固定部材により接続されて
いる。そして、この切り欠き部分１１Ｅの３角形面積Ａ
ＢＣと、切り残し部分１１Ｆの３角形面積ＢＣＤとがほ
ぼ同一で、しかも、切り欠き部分１１Ｅ・・の面積は、
切り欠き部分形成領域１１Ｃの上部天井面に、切り残し
部分１１Ｆ・・の傾斜縁１１Ｇ・・の影を生ぜしめない
ような光量を通過させ得る大きさに形成されている。Further, as shown in FIG. 3, the longitudinal end portion 10B of the rear reflector 10 located on the side of the ceiling surface 2 has its inner surface mirror-finished and, for example, has a diameter of approximately 3.5 mm. A plurality of perforations 13... And light-shielding provided with V-shaped cutouts 11E (see FIG. 4) at equal intervals in the region of the longitudinal end opposite to the longitudinal end 10B. The plate 11 is connected by a fixing member (not shown). Then, the triangular area A of the notch 11E
The BC and the triangular area BCD of the uncut portion 11F are almost the same, and the area of the notch portion 11E is:
On the upper ceiling surface of the cutout portion forming region 11C, the cutout portion 11F is formed to have a size capable of passing a light amount that does not create a shadow of the inclined edge 11G of the cutout portion 11F.
【００１７】また、図２に示すように、照明器具配設空
間の天井面２への有効高さＨを減少させるために、背面
反射板１０の背面側に安定器１２が配設されている。な
お、図４に示す符号１４はソケットを示す。As shown in FIG. 2, a ballast 12 is provided on the rear side of the rear reflector 10 in order to reduce the effective height H of the lighting fixture installation space with respect to the ceiling surface 2. . Reference numeral 14 shown in FIG. 4 indicates a socket.
【００１８】かかる構成の間接照明器具の作用について
説明する。螢光灯８、８の直接放射光、螢光灯８、８か
ら背面反射板１０や、天井面反射板９で反射した光２１
・・が天井面２の中心方向に向けて照射され、これによ
り天井面２全体を比較的明るく照明する。さらに、螢光
灯８の先端部８Ａや、口金端部近傍８Ｂから放射されて
背面反射板１０にて反射する反射光や、天井面反射板９
にて反射された反射光により天井面２を効率良く照明す
る。そして、天井面２からの反射光により、床面３を明
るく照明する。他方、螢光灯８、８の設置領域上部の天
井面２では、図２に示すように、螢光灯８、８からの放
射光２２、天井面反射板９、及び背面反射鏡１０からの
反射光２３が、穿孔１３・・を介して照明する。The operation of the indirect lighting apparatus having such a configuration will be described. Direct emission light of the fluorescent lamps 8, 8; light 21 reflected from the fluorescent lamps 8, 8 by the back reflector 10 or the ceiling reflector 9
Are directed toward the center of the ceiling surface 2, thereby illuminating the entire ceiling surface 2 relatively brightly. Further, reflected light radiated from the front end portion 8A of the fluorescent lamp 8 and the vicinity 8B of the base and reflected by the back reflector 10 and the ceiling reflector 9
The ceiling surface 2 is efficiently illuminated by the reflected light reflected by. Then, the floor surface 3 is brightly illuminated by the reflected light from the ceiling surface 2. On the other hand, as shown in FIG. 2, on the ceiling surface 2 above the installation area of the fluorescent lamps 8, 8, the radiated light 22 from the fluorescent lamps 8, 8, the ceiling reflector 9 and the rear reflector 10 The reflected light 23 illuminates through the perforations 13.
【００１９】ところで、切り欠き部分非形成領域１１Ｂ
の直上部（図４、参照）では、螢光灯８からの直接放射
光と、背面反射板１０、及び天井面反射板９からの反射
光とが穿孔１３・・により制限された光量で拡散照明さ
れ、やや暗い感じの照明領域が形成される。そして、切
り欠き部分形成領域１１Ｃでは、図４に示すように、切
り残し部分１１Ｆの透過光が穿孔１３により制限された
光量で、しかも、尖端側１１Ｄに近づく程減少して拡散
照明するのに対し、切り欠き部分１１Ｅの通過光は、両
切り残し部分１１Ｆ、１１Ｆの傾斜縁１１Ｇ、１１Ｇの
間隔が尖端１１Ｄに近づく程増加する関係上、逆に順次
増大し、このため、切り欠き部分形成領域１１Ｃからの
全体光量が尖端１１Ｄに近づくにつれて順次増大すると
ともに、拡散しながら天井面２に到達し、これを照明す
る。このため、切り残し部分１１Ｆ・・の傾斜縁１１Ｇ
・・の影を天井面２に形成することなく、柔らかな感じ
で、やや明るい照明領域を形成する。この遮光板１１の
切り欠き部分形成領域１１Ｃ外の天井面領域では、天井
面反射板９からの反射光により直接照射されるため、明
るい照明領域が形成される。従って、照明器具配設位置
上部の天井面輝度が低下するとともに、上述したように
その余の天井面２が比較的明るく照明され、これによ
り、天井面全体が柔らかな光で照明される。By the way, the notched portion non-forming region 11B
4 (see FIG. 4), the direct radiated light from the fluorescent lamp 8 and the reflected light from the back reflector 10 and the ceiling reflector 9 are diffused with the light quantity limited by the perforations 13. An illuminated, somewhat dark illuminated area is formed. Then, in the cutout portion forming region 11C, as shown in FIG. 4, the diffused illumination is performed in such a manner that the transmitted light of the uncut portion 11F is reduced by the amount of light limited by the perforation 13 and decreases as it approaches the tip end 11D. On the other hand, the light passing through the notch portion 11E sequentially increases in reverse because the interval between the inclined edges 11G, 11G of the both uncut portions 11F, 11F increases as approaching the tip 11D. The total amount of light from 11C gradually increases as approaching the tip 11D, and reaches the ceiling surface 2 while being diffused, illuminating it. For this reason, the inclined edge 11G of the uncut portion 11F.
··· Form a rather bright illumination area with a soft feeling without forming a shadow on the ceiling surface 2. In the ceiling surface area outside the cutout portion forming area 11C of the light shielding plate 11, a bright illumination area is formed because the light is directly irradiated by the reflected light from the ceiling surface reflection plate 9. Accordingly, the ceiling surface brightness above the lighting fixture disposition position is reduced, and the other ceiling surface 2 is relatively brightly illuminated as described above, whereby the entire ceiling surface is illuminated with soft light.
【００２０】図５は、本発明の一実施例、及び従来の、
図中左側配設位置の間接照明器具による天井面輝度、及
び床面照度の特性曲線を示すもので、被照明空間は開口
幅４ｍ、高さ３．１５ｍの廊下で、その床面からの高さ
２．５ｍの設置位置６に、ＦＴ５５Ｗのツイン型螢光灯
と、螢光灯の端部からほぼ２．５ｃｍづつ長手方向に長
く延伸させた背面反射板と、横幅が１２．５ｃｍの天井
面反射板と、全横幅が５．５ｃｍで、その中、切り欠き
部分形成領域の横幅が２ｃｍ、その長手方向に２．５ｃ
ｍの等間隔にてＶ字状の切り欠きを設けた遮光板とを備
える本発明の一実施例の間接照明器具と、反射板無しに
同一ワット数の螢光灯を設置した従来例との実験結果を
示す。FIG. 5 shows one embodiment of the present invention and a conventional one.
The figure shows the characteristic curves of the ceiling luminance and the floor illuminance by the indirect lighting equipment at the left side of the figure, and the illuminated space is a hallway with an opening width of 4 m and a height of 3.15 m, and the height from the floor surface is high. At an installation position 6 of 2.5 m in height, a twin-type fluorescent lamp of FT55W, a back reflector extended in the longitudinal direction by approximately 2.5 cm from the end of the fluorescent lamp, and a ceiling of 12.5 cm in width. A surface reflector and a total width of 5.5 cm, in which a width of a notch portion forming region is 2 cm and a length of 2.5 cm in a longitudinal direction thereof.
The indirect lighting fixture of one embodiment of the present invention, which has a light shielding plate provided with V-shaped notches at equal intervals of m, and a conventional example in which a fluorescent lamp of the same wattage is installed without a reflector. The experimental results are shown.
【００２１】従来例によると、螢光灯配設位置上部の天
井面近傍の輝度が３１００（ｃｄ／ｍ2 ）、廊下中央の
輝度は２５×２（２は、図中右側の間接照明器具を含め
た倍数である。）（ｃｄ／ｍ2 ）であるのに対し、本実
施例によるものは、螢光灯配設位置上部の近傍の天井面
輝度は遥かに低い１７００（ｃｄ／ｍ2 ）、廊下中央の
輝度は５６×２（ｃｄ／ｍ2 ）となり、螢光灯配設位置
上部の天井面の輝度が大幅に低減されるとともに、廊下
中央の輝度はほぼ２倍になった。また、床面照度につい
ても、従来のそれは通路中央部からほぼ６０ｃｍ離隔し
た位置では１５８（ｌｘ）であるのに対し、本実施例の
ものは２４２（ｌｘ）で、ほぼ１．５倍の床面照度とな
り、従って、照明灯配設位置上部の天井面輝度が低下
し、全体として比較的明るい照明空間が形成された。そ
して、従来例によると、螢光灯直上の天井面輝度を下げ
るために、有効高さを３０ｃｍ程度確保していたが、本
実施例によると、有効高さを２０ｃｍとすることが出来
た。According to the conventional example, the brightness near the ceiling above the fluorescent lamp installation position is 3100 (cd / m 2 ), and the brightness at the center of the corridor is 25 × 2 (2 is the indirect lighting fixture on the right side in the figure). (Cd / m 2 ), whereas in the case of the present embodiment, the ceiling luminance near the upper part of the fluorescent lamp installation position is much lower than 1700 (cd / m 2 ). The luminance at the center of the corridor was 56 × 2 (cd / m 2 ), and the luminance of the ceiling above the fluorescent lamp installation position was greatly reduced, and the luminance at the center of the corridor was almost doubled. The floor illuminance is 158 (lx) at a position approximately 60 cm away from the center of the passage, whereas the illuminance of the present embodiment is 242 (lx), which is approximately 1.5 times the floor illuminance. The surface illuminance was reduced, and therefore, the luminance of the ceiling surface at the upper part of the illuminating lamp installation position was reduced, and a relatively bright illumination space was formed as a whole. According to the conventional example, an effective height of about 30 cm was secured in order to lower the luminance of the ceiling surface immediately above the fluorescent lamp, but according to the present embodiment, the effective height could be set to 20 cm.
【００２２】図６は、他の実施例の遮光板１５の平面図
を示すもので、Ｖ字状切り欠き部分の尖端部Ｆと、切り
残し部分の尖端部Ｅとに丸みを設けたもので、上記実施
例と同様な効果を奏するものである。FIG. 6 shows a plan view of a light-shielding plate 15 of another embodiment, in which a pointed portion F of a V-shaped notch portion and a pointed portion E of an uncut portion are rounded. This has the same effect as the above embodiment.
【００２３】図７は、他の実施例の天井面反射板９Ａを
示すもので、反射光が天井面の中心部に向けて比較的よ
り多く到達するように、天井面に向けて凹面を有するよ
う形成したものである。FIG. 7 shows a ceiling reflector 9A according to another embodiment, which has a concave surface toward the ceiling surface so that the reflected light reaches a relatively large portion toward the center of the ceiling surface. It was formed as follows.
【００２４】なお、上述の実施例では、ツイン型螢光灯
について説明したが、通常の螢光灯を１本、あるいは、
２本並設したものでも、また、長尺状のフィラメント型
照明灯でもよいことは勿論である。また、背面反射板に
１組の螢光灯を配設するものに限定されず、複数本の螢
光灯を長手方向に配設して１組みの間接照明器具を構成
することも可能である。さらに、遮光板の切り欠き部分
非形成領域１１Ｂ（図４、参照）に設けた穿孔の穿孔密
度を、背面反射板接続部分から切り欠き部分形成領域１
１Ｃに向けて、穿孔密度を順次増大させ、天井面輝度を
順次増大させるようにしてぼかし効果を向上させるよう
構成することも出来る。また、遮光板は、天井面中心寄
りに反射光が比較的多く到達するように若干床面に向け
て傾斜させてあるが、水平方向に位置するように構成す
ることも任意である。さらに、通路等の開口幅の大小に
応じ、照明灯のワット数や、天井面反射板の面積等を適
宜設定することは言う迄もない。In the above-described embodiment, the twin type fluorescent lamp has been described. However, one ordinary fluorescent lamp or
It is needless to say that two lamps may be arranged side by side or a long filament type illumination lamp may be used. Further, the present invention is not limited to the arrangement in which one set of fluorescent lamps is disposed on the back reflector, and a plurality of fluorescent lamps may be disposed in the longitudinal direction to constitute one set of indirect lighting equipment. . Furthermore, the perforation density of the perforations provided in the notch portion non-formation region 11B (see FIG. 4) of the light shielding plate is changed from the back reflector connection portion to the notch portion formation region 1B.
Toward 1C, the perforation density may be sequentially increased, and the ceiling surface luminance may be sequentially increased to improve the blurring effect. Further, the light-shielding plate is slightly inclined toward the floor surface so that the reflected light reaches a relatively large amount near the center of the ceiling surface, but may be configured to be positioned in the horizontal direction. Further, it goes without saying that the wattage of the illuminating lamp, the area of the ceiling reflector, and the like are appropriately set according to the size of the opening width of the passage or the like.
【００２５】[0025]
【発明の効果】以上述べたように本発明によれば、長尺
状の照明灯からの放射光と、この照明灯からの背面反射
板、及び天井面反射板からの反射光とを天井面に向けて
照射するよう構成してあるので、天井面全体を比較的明
るく照明するとともに、この天井面からの反射光により
床面も比較的明るく照明することが出来る。さらに、穿
孔を有するとともに、長手方向にほぼ等間隔にてＶ字状
切り欠き部分を設けた遮光板を備えているので、この切
り欠き部分の通過光量は天井面中心側に近づく程順次増
大し、拡散しながら天井面に到達して照明するため、照
明灯配設領域上部の天井面に影を生ぜしめることなく、
柔らかな感じの照明領域が形成される。従って、照明器
具配設位置上部と天井面中心部との輝度比を低下させ、
これにより、柔らかな感じで、しかも、比較的明るい照
明空間を形成することが出来る。As described above, according to the present invention, the radiated light from the long illumination lamp and the reflected light from the back reflector and the ceiling reflector from the lamp are converted into the ceiling light. Therefore, the entire ceiling surface can be relatively brightly illuminated, and the floor surface can be relatively brightly illuminated by the reflected light from the ceiling surface. Further, since the light-shielding plate having the perforations and having the V-shaped cutout portions provided at substantially equal intervals in the longitudinal direction is provided, the amount of light passing through the cutout portions increases gradually as it approaches the center of the ceiling surface. , Because it reaches the ceiling surface while spreading and illuminates, it does not create shadows on the ceiling surface above the lighting installation area,
A soft feeling illumination area is formed. Therefore, the luminance ratio between the upper part of the lighting fixture arrangement position and the center part of the ceiling surface is reduced,
This makes it possible to form a relatively bright illumination space with a soft feeling.
【００２６】さらに、背面反射板の長手方向の長さが照
明灯の端部よりも長く形成されているため、照明灯の端
部近傍からの照射光を無駄なく背面反射板、天井面反射
板により反射させ、これにより、天井面を効率良く照明
させることが出来る。Further, since the length of the back reflector in the longitudinal direction is formed longer than the end of the lighting lamp, the irradiation light from near the end of the lighting lamp can be efficiently used for the back reflector and the ceiling reflector. And the ceiling surface can be efficiently illuminated.
【００２７】また、本発明によれば、照明灯として螢光
灯を配設するとともに、その背面反射板の背面側に安定
器を配設する構成にしてあるので、遮光板の輝度減少効
果と相伴い、照明器具の天井面に対する有効高さを減少
させることが出来る。Further, according to the present invention, a fluorescent lamp is provided as an illuminating lamp, and a ballast is provided on the back side of the back reflector, so that the effect of reducing the brightness of the light blocking plate is obtained. Accordingly, the effective height of the lighting fixture with respect to the ceiling surface can be reduced.
【図１】 本発明の間接照明器具を廊下に設置した一実
施例の断面図である。FIG. 1 is a sectional view of an embodiment in which an indirect lighting device of the present invention is installed in a corridor.
【図２】 上記実施例における間接照明器具を側面から
眺めた図である。FIG. 2 is a view of the indirect lighting device in the embodiment as viewed from the side.
【図３】 模式的に示す上記間接照明器具の斜視図であ
る。FIG. 3 is a schematic perspective view of the indirect lighting device.
【図４】 模式的に示す上記間接照明器具の平面図であ
る。FIG. 4 is a plan view of the indirect lighting device schematically shown.
【図５】 本発明の実施例による間接照明器具と、従来
のそれとの実験結果を示すグラフである。FIG. 5 is a graph showing experimental results of an indirect lighting device according to an embodiment of the present invention and a conventional indirect lighting device.
【図６】 本発明の遮光板の他の実施例の平面図であ
る。FIG. 6 is a plan view of another embodiment of the light shielding plate of the present invention.
【図７】 本発明の間接照明器具における天井面反射板
の他の実施例を示す図である。FIG. 7 is a view showing another embodiment of the ceiling reflector in the indirect lighting device of the present invention.
【図８】 従来の間接照明器具を廊下に設けた図であ
る。FIG. 8 is a diagram in which a conventional indirect lighting device is provided in a corridor.
１ 廊下、２ 天井面、３ 側壁、４ 床面、５ 設置
台、６、照明器具設置空間、７ 間接照明器具、８ ツ
イン型螢光灯、８Ａ 螢光灯の端部周面、９、９Ａ 天
井面反射板、１０ 背面反射板、１１、１５Ａ 遮光
板、１１Ｅ 切り欠き部分、１１Ｆ 切り残し部分、１
２ 安定器、１３ 光が透過する穿孔、２１乃至２３
光。1 Corridor, 2 ceilings, 3 side walls, 4 floors, 5 installation stands, 6, lighting fixture installation space, 7 indirect lighting fixtures, 8 twin fluorescent lamps, 8A fluorescent lamp end peripheral surface, 9, 9A Ceiling surface reflection plate, 10 rear reflection plate, 11, 15A light shielding plate, 11E cutout portion, 11F uncut portion, 1
2 Ballast, 13 Perforations through which light passes, 21 to 23
light.
フロントページの続き (72)発明者 福井 祥二 東京都港区芝浦一丁目２番３号 清水建 設株式会社内 (56)参考文献 特開 平２−68803（ＪＰ，Ａ) 実開 昭61−158006（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F21S 3/02 F21V 11/14,13/10Continuation of the front page (72) Inventor Shoji Fukui 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (56) References JP-A-2-68803 (JP, A) Shokai 61-158006 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) F21S 3/02 F21V 11/14, 13/10
Claims (3)
照明器具により天井面、床面等を間接照明する間接照明
器具において、上記設置領域に沿って水平方向に配設さ
れた長尺状の照明灯の背面に設けた鏡面状の背面反射板
と、該照明灯長手方向の床面方向側領域に配設され、照
明灯からの照射光を天井面に向けて反射する鏡面状の天
井面反射板と、上記背面反射板の天井面側の長手方向端
部に接続された多数の穿孔を備える遮光板とを備え、上
記遮光板は、該遮光板の、上記長手方向端部とは反対側
の長手方向端部にほぼ等間隔にてＶ字状の切り欠き部分
を備え、該切り欠き部分の面積と、切り残された部分の
面積とをほぼ等しくするとともに、上記切り欠き部分の
面積が該切り欠き部分の形成領域天井面に影を生じさせ
ないような光量を通過させ得る大きさに形成されている
ことを特徴とする間接照明器具。1. An indirect lighting device for indirectly illuminating a ceiling surface, a floor surface, or the like with a lighting device provided in an installation area such as a wall surface of a building, wherein the length is horizontally arranged along the installation area. A mirror-like rear reflector provided on the back of a scale-shaped lamp, and a mirror-shaped reflector disposed in a floor-side region in the longitudinal direction of the lamp, and reflecting irradiation light from the lamp toward a ceiling surface. And a light-shielding plate provided with a number of perforations connected to the ceiling-side longitudinal end of the rear-surface reflector, wherein the light-shielding plate is provided at the longitudinal end of the light-shielding plate. V-shaped notches are provided at substantially equal intervals on the opposite end in the longitudinal direction, so that the area of the notch is substantially equal to the area of the uncut portion. The area of the portion has a light amount that does not cause shadows on the ceiling surface of the cutout area. An indirect lighting device characterized by being formed in a size that can be passed.
記照明灯の端部近傍から照射される放射光を該背面反射
板により反射させるよう該照明灯よりも長く形成されて
いることを特徴とする「請求項１」記載の間接照明器
具。2. A length of the back reflector in a longitudinal direction is longer than that of the lamp so that radiation emitted from near an end of the lamp is reflected by the back reflector. The indirect lighting device according to claim 1, wherein:
もに、上記背面反射板の背面側に安定器を配設すること
を特徴とする「請求項１」、または、「請求項２」記載
の間接照明器具。3. The method according to claim 1, wherein a fluorescent lamp is mounted as the illuminating lamp, and a ballast is provided on the back side of the back reflector. Indirect lighting fixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115975A JP2784974B2 (en) | 1992-05-08 | 1992-05-08 | Indirect lighting fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115975A JP2784974B2 (en) | 1992-05-08 | 1992-05-08 | Indirect lighting fixtures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05314803A JPH05314803A (en) | 1993-11-26 |
| JP2784974B2 true JP2784974B2 (en) | 1998-08-13 |
Family
ID=14675769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4115975A Expired - Fee Related JP2784974B2 (en) | 1992-05-08 | 1992-05-08 | Indirect lighting fixtures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784974B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1586811A1 (en) * | 2004-04-16 | 2005-10-19 | Koninklijke Philips Electronics N.V. | Lamps and reflector arrangement for color mixing |
| RU2569325C2 (en) | 2010-04-09 | 2015-11-20 | Конинклейке Филипс Электроникс Н.В. | Lighting device having smooth cut-off |
| JP5615126B2 (en) * | 2010-10-18 | 2014-10-29 | パナソニック株式会社 | lighting equipment |
| JP6583822B2 (en) * | 2015-12-25 | 2019-10-02 | パナソニックＩｐマネジメント株式会社 | Lighting device and installation structure of lighting device |
| JP7344025B2 (en) * | 2019-07-05 | 2023-09-13 | 株式会社オカムラ | Fixtures with mounting surface |
-
1992
- 1992-05-08 JP JP4115975A patent/JP2784974B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05314803A (en) | 1993-11-26 |
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