JPH11111024A - Indoor luminaire - Google Patents
Indoor luminaireInfo
- Publication number
- JPH11111024A JPH11111024A JP9268475A JP26847597A JPH11111024A JP H11111024 A JPH11111024 A JP H11111024A JP 9268475 A JP9268475 A JP 9268475A JP 26847597 A JP26847597 A JP 26847597A JP H11111024 A JPH11111024 A JP H11111024A
- Authority
- JP
- Japan
- Prior art keywords
- light
- color temperature
- paper
- illuminance
- color
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
- F21Y2113/20—Combination of light sources of different form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、屋内照明器具に関
し、特に黄色みを帯びた新聞紙や再生紙の白さ感を高め
て文字とのコントラストを明瞭にし、かつ、不快グレア
を与えず、室内の照明環境として光色の違和感を与えな
い2種類の色温度と配光を有する屋内照明器具に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor lighting apparatus, and more particularly to an indoor lighting apparatus which enhances the whiteness of yellowish newspaper or recycled paper to make contrast with characters clear, and does not cause discomfort glare. The present invention relates to an indoor lighting device having two types of color temperatures and light distributions that do not give a sense of discomfort of light colors as the lighting environment.
【0002】[0002]
【従来の技術】最近、地球環境保護の観点から新聞や雑
誌、コピー用の紙には再生紙が多く使用されている。従
来、雑誌やコピー用として使用されていたのは上質紙で
あり、その色彩はいわゆる白色であるが、最近使用の多
くなっている再生紙の色彩は黄色みを帯びている。この
ため、新聞や雑誌のように黄色みを帯びた再生紙を使用
した紙が白色に見え、かつ、印刷された黒い文字が上質
紙のような白い紙に印刷されているように明瞭に見える
手段の実現が望まれていた。特に高齢者社会に入ったこ
とで視覚の衰えた高齢者からそのニーズが高まってきて
いる。2. Description of the Related Art In recent years, recycled paper is often used for newspapers, magazines, and copy paper from the viewpoint of global environmental protection. Conventionally, high-quality paper has been used for magazines and copies, and its color is a so-called white color. However, the color of recycled paper, which has been frequently used recently, is yellowish. For this reason, paper using recycled paper with a yellow tint, such as newspapers and magazines, looks white, and the printed black characters look clearly as if they were printed on white paper, such as high-quality paper. The realization of the means was desired. In particular, the needs of elderly people whose vision has declined due to the entry into the elderly society are increasing.
【0003】このことに関し、色温度の高い光源で照明
すると紙が白っぽく見えることは経験的に知られてい
た。又、色温度の高い光源では不快なまぶしさ(不快グ
レア)を受けやすく、特に、高齢者が受けやすいという
弊害のあることも周知であった(照学誌、第77巻第6
号p24−p31)。In this regard, it has been empirically known that paper appears whitish when illuminated with a light source having a high color temperature. It has also been known that a light source having a high color temperature is susceptible to unpleasant glare (unpleasant glare), and in particular, it is harmful to the elderly.
No. p24-p31).
【0004】従って、上述のニーズに応えるためには新
聞等を読むための十分な照度が得られることは当然のこ
ととして、黄色みを帯びた紙を白色に見せ、文字の明瞭
感を高め、かつ不快グレアがなく、生活空間となる室内
が光色的に違和感のない照明照明環境となるような手段
が必要である。Accordingly, in order to meet the above-mentioned needs, it is natural that sufficient illuminance for reading newspapers or the like can be obtained. In addition, there is a need for a means that does not cause unpleasant glare and provides a lighting environment in which the interior of the living space is light-colored and comfortable.
【0005】従来技術の第一例として概念を示す住宅用
の照明器具の断面図を図4に示す。すなわち、この照明
器具は直下付近を照明する指向性配光の反射型ハロゲン
電球10と、周辺を照明する拡散配光の蛍光ランプ1
1,12とで構成されており、反射型ハロゲン電球10
の色温度は3000[K]で、蛍光ランプ11,12の
色温度は5000[K]である(例えば、松下電工
(株)’96〜’97カタログ、住宅・店舗d編p13
7)。FIG. 4 shows a sectional view of a lighting fixture for a house, which is conceptually shown as a first example of the prior art. That is, this luminaire includes a directional light distribution reflective halogen bulb 10 that illuminates the vicinity immediately below, and a diffused light distribution fluorescent lamp 1 that illuminates the periphery.
1, 12 and the reflective halogen bulb 10
Is 3000 [K] and the color temperature of the fluorescent lamps 11 and 12 is 5000 [K] (for example, catalogs of Matsushita Electric Works Co., Ltd. '96 -'97, d.
7).
【0006】この第一の従来例では、直下付近を低色温
度の反射型ハロゲン電球10で照明している。この電球
は白色光源として分類されているが、実際の光色は黄橙
みを帯びており、黄色みを帯びた紙を白色に見せる効果
はない。In this first conventional example, the area immediately below is illuminated by a reflective halogen bulb 10 having a low color temperature. Although this light bulb is classified as a white light source, the actual light color is yellowish-orange, and has no effect of making yellowish paper look white.
【0007】色温度5000[K]の蛍光ランプ11,
12は周辺を照明するためのものであり、直下付近を照
明の主対象としておらず、逆に高齢者に対しては不快グ
レアを与えやすい構成となっている。つまり第一の従来
例は、2種類の色温度の光源と配光を備えているが、暖
かい雰囲気が得られることと併せてハロゲン電球10と
蛍光ランプ11,12との点灯回路を適宜切り替えるこ
とによる光色の変化で雰囲気を変えられることに効果と
しての狙いがある。A fluorescent lamp 11 having a color temperature of 5000 [K],
Numeral 12 is for illuminating the periphery, and the area immediately below is not the main object of illumination, and is configured to easily give discomfort glare to elderly people. In other words, the first conventional example is provided with a light source and a light distribution having two kinds of color temperatures, but it is necessary to appropriately switch the lighting circuit between the halogen bulb 10 and the fluorescent lamps 11 and 12 in addition to obtaining a warm atmosphere. There is an aim as an effect that the atmosphere can be changed by the change of the light color due to.
【0008】従来技術の第二例として、特許登録第25
29477号に記載のものがある。これは指向性の強い
光を放射する光源と拡散光を放射する光源を構成要素と
し、指向性の強い光を放射する光源の色温度K1と拡散
光を放射する光源の色温度K2とをK1<K2とし、か
つ色温度K1を5500[K]以下、K2を6000
[K]以上としている。この第二の従来例の効果は、屋
外の自然に近い快適な光環境が得られることにあり、黄
色みを帯びた紙を白色に見せるという点では第一の従来
例と同様に効果はない。As a second example of the prior art, Patent Registration No. 25
No. 29,277. It is composed of a light source that emits highly directional light and a light source that emits diffuse light, and the color temperature K1 of the light source that emits light with high directivity and the color temperature K2 of the light source that emits diffuse light are represented by K1. <K2, color temperature K1 is 5500 [K] or less, K2 is 6000
[K] or more. The effect of the second conventional example is that a comfortable light environment close to nature is obtained outdoors, and there is no effect similar to the first conventional example in that yellowish paper looks white. .
【0009】以上の従来例はいずれも2種類の色温度と
配光を有しているが、指向性配光を有する光の色温度K
1が周辺への光の色温度K2より低い、すなわち本発明
とは逆のK1<K2が特徴であり、その効果も新聞紙や
再生紙など黄色みを帯びた紙を”見た目に白く見せる”
効果はない。[0009] Each of the above conventional examples has two kinds of color temperature and light distribution, but the color temperature K of the light having the directional light distribution.
1 is lower than the color temperature K2 of the light to the surroundings, that is, K1 <K2, which is opposite to that of the present invention, and the effect is that "yellowish paper such as newsprint or recycled paper is" visibly white "".
No effect.
【0010】[0010]
【発明が解決しようとする課題】本発明は上記問題を解
決するもので、黄色みを帯びた紙面を白色に見せて印刷
されている文字の明瞭感を高め、併せて新聞等の文字を
読むのに必要な照度が得られ、かつ、不快グレアがな
く、違和感のない光色の照明環境が得られる照明器具を
提供することに目的がある。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and enhances the clarity of printed characters by making a yellowish paper surface appear white, and also reads characters in newspapers and the like. It is an object of the present invention to provide a lighting fixture that can provide an illuminance necessary for the lighting, has no discomfort glare, and can provide a lighting environment of a light color without a sense of incongruity.
【0011】[0011]
【課題を解決するための手段】第1の発明は、屋内照明
器具を下方へ略指向性の光を放射する手段と、周辺に光
を放射する手段とで構成し、指向性の光の色温度K1と
周辺に放射する光の色温度K2とをK1>K2とするも
のである。According to a first aspect of the present invention, there is provided an indoor lighting apparatus comprising: means for radiating substantially directional light downward; and means for radiating light to the periphery. The temperature K1 and the color temperature K2 of light radiated to the surroundings are set so that K1> K2.
【0012】屋内照明器具の構成を上記のごとくし、か
つ、指向性の光の色温度K1と周辺に放射する光の色温
度K2とをK1>K2とすることによって、黄色みを帯
びた紙が白色に見え、不快グレアの少ない照明環境が得
られる。The configuration of the indoor lighting apparatus is as described above, and the color temperature K1 of the directional light and the color temperature K2 of the light radiated to the periphery are K1> K2, so that the yellowish paper is obtained. Appear white and provide an illumination environment with less discomfort glare.
【0013】第2の発明は、第1の発明の構成に加え
て、略指向性の光の色温度K1を5000[K]以上、
周辺への光の色温度K2を3800[K]以下とするも
のである。According to a second aspect of the invention, in addition to the configuration of the first aspect, the color temperature K1 of the substantially directional light is set to 5000 K or more.
The color temperature K2 of the light to the surroundings is set to 3800 [K] or less.
【0014】さらに略指向性の光の色温度K1と周辺へ
の光の色温度K2とを上記のごとくすることによって、
黄色みを帯びた紙がより白色に見え、不快グレアがさら
に少ない照明環境が得られる。Further, by setting the color temperature K1 of the substantially directional light and the color temperature K2 of the light to the periphery as described above,
The yellowish paper looks whiter and provides a lighting environment with even less discomfort glare.
【0015】第3の発明は、第2の発明の構成に加え
て、指向性の光による直下付近の照度E1を500[l
x]以上とし、かつ、周辺の照度E2とをE1/10≦
E2≦E1/4とするものである。According to a third aspect of the invention, in addition to the configuration of the second aspect of the invention, the illuminance E1 in the vicinity immediately below by the directional light is set to 500 [l
x] or more, and the surrounding illuminance E2 is E1 / 10 ≦
E2 ≦ E1 / 4.
【0016】照度を上記のごとくすることによって、第
2の発明の効果に加えて読書等のための照度を確保で
き、光色としての違和感の小さい照明環境が得られる。By setting the illuminance as described above, in addition to the effect of the second invention, the illuminance for reading or the like can be secured, and an illumination environment with a sense of strangeness as a light color can be obtained.
【0017】[0017]
【発明の実施の形態】屋内照明器具を、用途の一例とし
て、住宅のリビングや和室で使用するものとして天井取
り付け用とし、照明器具の直下付近で新聞や雑誌を見る
ことを想定して、下方へ指向性を有する光を放射する手
段と、壁面等の周辺へ光を放射する手段を備えた構成と
し、下方へ指向性の光を放射する手段の光源の色温度K
1と、周辺へ光を放射する手段の光源の色温度K2とを
K1>K2とする。BEST MODE FOR CARRYING OUT THE INVENTION As an example of an application, indoor lighting fixtures are used in a living room or a Japanese-style room of a house and are mounted on a ceiling, and it is assumed that newspapers and magazines are viewed immediately below the lighting fixtures. A means for radiating light having directivity and a means for radiating light to the periphery such as a wall surface.
1 and the color temperature K2 of the light source of the means for emitting light to the surroundings are set to K1> K2.
【0018】これによって、黄色みを帯びた紙は周辺よ
り色温度の高い光で照明されるので白色に見え、通常の
視線の場合に目に入って不快グレアの原因となる周辺へ
の光の色温度K2は下方向への光の色温度K1より低い
ので、室内全体を色温度K1の光で照明した場合より不
快グレアが少なくなる。[0018] As a result, the yellowish paper is illuminated with light having a higher color temperature than the surroundings, so that the paper looks white, and in the case of a normal line of sight, light enters the eyes and causes discomfort glare. Since the color temperature K2 is lower than the color temperature K1 of the downward light, unpleasant glare is reduced as compared with the case where the entire room is illuminated with the light having the color temperature K1.
【0019】さらに、下方への指向性の光の色温度K1
を5000[K]以上、周辺への光の色温度K2を38
00[K]以下にする。これによって、黄色みを帯びた
紙がより白色に見え、不快グレアもさらに小さくなる。Further, the color temperature K1 of the downward directivity light
5,000 [K] or more, and the color temperature K2
00 [K] or less. This makes the yellowish paper appear whiter and has less discomfort glare.
【0020】さらに、下方へ略指向性の光を放射する手
段を色温度が5000[K]以上の光源と例えば回転放
物面を有する反射鏡とで構成し、直下付近の照度が少な
くとも500[lx]は得られるようにするとともに、
周辺へ光を放射する手段を、色温度が3800[K]以
下の光源を、例えば前記反射鏡の外側に配置して、光源
を包含するように拡散透光材で照明カバーを形成し、周
辺の照度が直下付近の照度の1/10以上、1/4以下
になるようにする。Further, the means for emitting light having substantially directivity downward is constituted by a light source having a color temperature of 5,000 [K] or more and a reflecting mirror having, for example, a paraboloid of revolution. lx] is obtained.
A means for radiating light to the surroundings is provided, for example, by arranging a light source having a color temperature of 3800 [K] or less outside the reflecting mirror, forming a lighting cover with a diffuse translucent material so as to include the light source, Is set to be 1/10 or more and 1/4 or less of the illuminance near immediately below.
【0021】これによって、読書のための直下付近の照
度を確保でき、色温度の高い光と低い色温度の光が室内
に存在するにも拘わらず光色による違和感のない照明環
境が得られる。Thus, the illuminance in the vicinity immediately below for reading can be ensured, and an illumination environment free from discomfort due to light colors can be obtained even when light having a high color temperature and light having a low color temperature exist indoors.
【0022】以下、これの論拠について説明する。色温
度の高い光源で照明された紙は白っぽく見えることは経
験的に知られていたが、定量的に検討されたことはなか
った。そこで、屋内で最も広く使用されている蛍光ラン
プで平均演色評価数Raが80以上の、色温度の異なる
蛍光ランプを試作し、そして黄色みを帯びた紙の代表例
として新聞紙を選び、ランプの分光分布と新聞紙の分光
反射率とから、色温度に応じて新聞紙の色味がどのよう
に変化するかを計算で求めた。次に実際に観測(観測者
7名)した場合、どのような色味に見えるかを主観評価
実験で求めた。その計算結果を示したのが図2であり、
観測結果も相対値として図2と同様な結果であった。The reason for this will be described below. It has been empirically known that paper illuminated by a light source with a high color temperature looks whitish, but has not been quantitatively studied. Therefore, a prototype of a fluorescent lamp most widely used indoors, having an average color rendering index Ra of 80 or more and different color temperatures, was prototyped, and newspaper was selected as a representative example of yellowish paper. From the spectral distribution and the spectral reflectance of the newspaper, how the tint of the newspaper changed according to the color temperature was calculated. Next, when actually observed (seven observers), what kind of color it looks was determined by a subjective evaluation experiment. FIG. 2 shows the calculation result.
Observation results were the same as those in FIG. 2 as relative values.
【0023】図2の横軸は色温度[K]であり、縦軸は
色味b*である。b*の値が0に近いほど無彩色(白
色)に見えることを示し、値が大きければ黄色みを帯び
て見えることを示す。図2から、色温度が10000
[K]程度までは高くなるほど白色に見える。しかし、
色温度が5000[K]を越えると白色に見える効果が
飽和する傾向にあることが判る。The horizontal axis in FIG. 2 is the color temperature [K], and the vertical axis is the color b *. The closer the value of b * is to 0, the more it looks achromatic (white), and the larger the value of b *, the more it looks yellowish. From FIG. 2, the color temperature is 10,000.
Up to [K], the higher it looks, the whiter it looks. But,
It can be seen that when the color temperature exceeds 5000 [K], the effect of appearing white tends to be saturated.
【0024】一方、本発明者は、光源の輝度は同じであ
っても色温度が高くなると不快グレアが増大することを
明らかにしている(照学誌、第77巻第6号p24−3
0)。そのことを示したのが図3である。On the other hand, the present inventor has clarified that the discomfort glare increases as the color temperature increases, even if the luminance of the light source is the same (Shogaku Magazine, Vol. 77, No. 6, p. 24-3).
0). This is shown in FIG.
【0025】よって、下方への光の色温度K1と周辺へ
の光の色温度K2とをK1>K2とすることによって黄
色みを帯びた紙を白色に見せ、かつ不快グレアを少なく
できる効果が得られる。さらにK1を5000[K]以
上とすることによって黄色みを帯びた紙が白く見える最
大の効果が得られる。一方、K2の色温度を3800
[K]以下にすることによって、不快グレアの増大を、
実用光源として最も色温度の低い電球(3000
[K])の10%以内にする効果が得られる。Therefore, by setting the color temperature K1 of the downward light and the color temperature K2 of the peripheral light to be K1> K2, the yellowish paper can appear white and the discomfort glare can be reduced. can get. Further, by setting K1 to be 5000 [K] or more, the maximum effect that yellowish paper looks white can be obtained. On the other hand, the color temperature of K2 is 3800
[K] By increasing the discomfort glare,
Light bulb with the lowest color temperature as a practical light source (3000)
[K]) is obtained.
【0026】加えて、照明器具の直下付近と周辺とを照
明する光の色温度が上記条件を満たすときの、光色によ
る違和感が少なくなる照度の組み合わせを、直下付近の
照度すなわち新聞等を見るための照度はJISで少なく
とも500[lx]にすることが推奨されているので、
直下付近の平均照度を500[lx]に設定して主観評
価実験で求めた。In addition, when the color temperature of the light illuminating the area immediately below and around the lighting fixture satisfies the above condition, the combination of illuminance that reduces the sense of discomfort due to the light color is determined by checking the illuminance near the area immediately below, ie, the newspaper. JIS recommends that the illuminance be at least 500 [lx].
The average illuminance immediately below was set to 500 [lx] and determined by a subjective evaluation experiment.
【0027】その結果、壁面の照度が50〜110[l
x]にあれば光色の違和感が最も少なくなることが判っ
た。このことは、明るさに対する人間の目の順応特性を
考慮すれば、周辺の照度は直下付近の照度の1/10以
上、1/4以下であればよいことになる。なお、これに
関連するものとして特願平7−218524号、特願平
9−58922号があるが、いずれも視作業に対する集
中のしやすさと照度比に関するもので、本発明の目的と
は異なる。As a result, the illuminance on the wall surface is 50 to 110 [l
x], it was found that the unpleasant feeling of light color was minimized. This means that considering the adaptation characteristics of the human eye to the brightness, the illuminance in the surrounding area may be 1/10 or more and 1/4 or less of the illuminance in the vicinity immediately below. Japanese Patent Application No. 7-218524 and Japanese Patent Application No. 9-58922 relate to this, but all relate to the ease of concentration for visual work and the illuminance ratio, which are different from the object of the present invention. .
【0028】以上より、屋内照明器具を直下付近を照明
する手段と周辺を照明する手段とで構成し、直下付近を
照明する手段として色温度が5000[K]以上の光源
を用い、直下付近の照度が500[lx]以上となるよ
うにし、周辺を照明する手段として色温度が3800
[K]以下の光源を用い、周辺の照度が直下付近の照度
の1/10以上、1/4以下になるようにすることによ
って、黄色みを帯びた紙が白色に見え、かつ不快グレア
がなく、光色の違いによる違和感も少ない室内の照明環
境が得られる。As described above, the indoor lighting apparatus is constituted by a means for illuminating the area immediately below and a means for illuminating the surrounding area. A light source having a color temperature of 5000 [K] or more is used as the means for illuminating the area immediately below. The illuminance is set to 500 [lx] or more, and the color temperature is set to 3800 as a means for illuminating the periphery.
By using a light source of [K] or less and setting the peripheral illuminance to be 1/10 or more and 1/4 or less of the illuminance immediately below, yellowish paper looks white and unpleasant glare is caused. In addition, an indoor lighting environment with less discomfort due to a difference in light color can be obtained.
【0029】以下、本発明の実施例について図面を参照
しながら説明する。図1は本発明の一実施例である照明
器具の構成を示す断面図である。図1において、1は照
明器具本体、2は下方への光となる6700Kの色温度
を有する27Wのコンパクト蛍光ランプ、3はコンパク
ト蛍光ランプ2の光を指向光として下方へ放射する略回
転放物面を持つ反射鏡、4は周辺への光となる3000
[K]の色温度を有する40Wの環形蛍光ランプ、5は
拡散透光性の照明器具カバー、6は点灯制御部、7は天
井、8は下方への光、9は周辺への光である。Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a configuration of a lighting fixture according to one embodiment of the present invention. In FIG. 1, 1 is a lighting fixture main body, 2 is a compact fluorescent lamp of 27 W having a color temperature of 6700 K, which is a downward light, and 3 is a substantially rotating parabola which emits the light of the compact fluorescent lamp 2 downward as directional light. Reflector with a surface, 4 is light to the periphery 3000
A 40 W ring-shaped fluorescent lamp having a color temperature of [K], 5 is a diffuse translucent lighting fixture cover, 6 is a lighting control unit, 7 is a ceiling, 8 is downward light, and 9 is peripheral light. .
【0030】図1に示すように、蛍光ランプ2から放射
された色温度6700[K]の光は反射鏡3によって下
方への光8となり、環形蛍光ランプ4から放射された色
温度3000[K]の光は照明器具カバー5で拡散さ
れ、周辺光9として周辺をほぼ一様に照明する。As shown in FIG. 1, light having a color temperature of 6700 [K] emitted from the fluorescent lamp 2 becomes downward light 8 by the reflecting mirror 3, and a color temperature of 3000 [K] emitted from the annular fluorescent lamp 4. ] Is diffused by the lighting fixture cover 5 and illuminates the periphery almost uniformly as the ambient light 9.
【0031】図1に示した照明器具を、広さ8畳のリビ
ングを模した実験室の天井中央に設置した結果、直下の
テーブル面で平均照度として620[lx]が得られ、
壁面の上半部で平均照度として65[lx]が得られ
た。また、直下付近で新聞紙を広げて見た場合に紙面が
白く見え、文字の明瞭感も高く、視線を水平に向けた状
態でも不快グレアがなく、光色の違和感もない照明環境
が得られた。As a result of installing the lighting fixture shown in FIG. 1 at the center of the ceiling of a laboratory simulating a living room of 8 tatami mats, an average illuminance of 620 [lx] was obtained on the table immediately below.
An average illuminance of 65 [lx] was obtained in the upper half of the wall. In addition, when the newspaper was spread and viewed immediately below, the paper surface appeared white, the clarity of the characters was high, and there was no discomfort glare even when the gaze was directed horizontally, and the lighting environment was free from discomfort in light color. .
【0032】なお、図1の実施例おいて、6700Kの
色温度を有する27Wコンパクト蛍光ランプ2の光源に
同等色温度の高輝度放電ランプを用いても、3000
[K]の色温度を有する40Wの環形蛍光ランプ4の光
源に同等色温度の複数の線状蛍光ランプまたは複数のコ
ンパクト蛍光ランプを用いてもよい。In the embodiment shown in FIG. 1, even if a high-intensity discharge lamp having an equivalent color temperature is used as the light source of the 27 W compact fluorescent lamp 2 having a color temperature of 6700 K, it is 3000
A plurality of linear fluorescent lamps or a plurality of compact fluorescent lamps having the same color temperature may be used as the light source of the 40 W ring-shaped fluorescent lamp 4 having the color temperature of [K].
【0033】[0033]
【発明の効果】以上のように第1の発明によれば、屋内
照明器具を下方へ略指向性の光を放射する手段と、周辺
に光を放射する手段とで構成し、指向性の光の色温度K
1と周辺に放射する光の色温度K2とをK1>K2とす
ることによって、黄色みを帯びた紙が白色に見え、不快
グレアの少ない照明環境が得られる。As described above, according to the first aspect of the present invention, the indoor luminaire is constituted by a means for radiating substantially directional light downward and a means for radiating light to the periphery. Color temperature K
By setting K1> K2 to 1 and the color temperature K2 of light radiated to the surroundings, a yellowish paper looks white and an illumination environment with less discomfort glare can be obtained.
【0034】また、第2の発明によれば、第1の発明の
構成に加えて、略指向性の光の色温度K1を5000
[K]以上、周辺への光の色温度K2を3800[K]
以下とすることによって、黄色みを帯びた紙がより白色
に見え、不快グレアがさらに少ない照明環境が得られ
る。According to the second aspect, in addition to the configuration of the first aspect, the color temperature K1 of the substantially directional light is set to 5000.
[K] As described above, the color temperature K2 of light to the surroundings is set to 3800 [K].
By performing the following, a lighting environment in which yellowish paper looks more white and discomfort glare is further reduced is obtained.
【0035】また、第3の発明によれば、第2の発明の
構成に加えて、指向性の光による直下付近の照度E1を
500[lx]以上とし、かつ、周辺の照度E2とをE
1/10≦E2≦E1/4とすることによって、第2の
発明の効果に加えて読書等のための照度を確保でき、光
色としての違和感の小さい照明環境が得られる。According to the third aspect of the invention, in addition to the configuration of the second aspect, the illuminance E1 in the vicinity immediately below by the directional light is set to 500 [lx] or more, and the illuminance E2 in the vicinity is set to E1.
By setting 1/10 ≦ E2 ≦ E1 / 4, in addition to the effect of the second invention, illuminance for reading or the like can be secured, and an illumination environment with a sense of strangeness as a light color can be obtained.
【図1】本発明の一実施例における屋内照明器具の構成
図FIG. 1 is a configuration diagram of an indoor lighting device according to an embodiment of the present invention.
【図2】色温度と、紙の色味との関係を示す特性図FIG. 2 is a characteristic diagram showing a relationship between color temperature and color of paper;
【図3】不快グレアと色温度との関係を示す特性図FIG. 3 is a characteristic diagram showing a relationship between discomfort glare and color temperature.
【図4】従来の屋内照明器具の構成図FIG. 4 is a configuration diagram of a conventional indoor lighting fixture.
1 屋内照明器具の本体 2 下方への指向光用光源 3 光源2の光を下方へ放射する反射鏡 4 周辺光用の光源 5 透光性カバー 6 点灯制御部 7 天井 8 下方への光 9 周辺への光 DESCRIPTION OF SYMBOLS 1 Main body of indoor lighting fixture 2 Light source for downward directional light 3 Reflector for emitting light of light source 2 downward 4 Light source for ambient light 5 Translucent cover 6 Lighting control unit 7 Ceiling 8 Light downward 9 Light to
Claims (3)
辺に光を放射する手段を備え、前記略指向性の光の色温
度K1と前記周辺に放射する光の色温度K2とをK1>
K2とする屋内照明器具。A means for radiating light substantially directionally downward and a means for radiating light to the periphery, wherein a color temperature K1 of the substantially directional light and a color temperature K2 of the light radiated to the periphery are provided. To K1>
K2 indoor lighting equipment.
[K]以上、周辺に放射する光の色温度K2を3800
[K]以下とする請求項1記載の屋内照明器具。2. The color temperature K1 of substantially directional light is set to 5000.
[K] As described above, the color temperature K2 of light radiated to the periphery is set to 3800.
[K] The indoor lighting fixture according to claim 1, wherein:
500[lx]以上、かつ、周辺への光による周辺の照
度E2とをE1/10≦E2≦E1/4とする請求項1
記載の屋内照明器具。3. The illuminance E1 in the vicinity immediately below the substantially directional light is 500 [lx] or more, and the illuminance E2 in the vicinity due to the light to the periphery is E1 / 10 ≦ E2 ≦ E1 / 4.
The indoor lighting fixture as described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9268475A JPH11111024A (en) | 1997-10-01 | 1997-10-01 | Indoor luminaire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9268475A JPH11111024A (en) | 1997-10-01 | 1997-10-01 | Indoor luminaire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH11111024A true JPH11111024A (en) | 1999-04-23 |
Family
ID=17459023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9268475A Withdrawn JPH11111024A (en) | 1997-10-01 | 1997-10-01 | Indoor luminaire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH11111024A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20104346U1 (en) | 2001-03-14 | 2001-06-07 | Wila Patent- Und Lizenzgesellschaft Mbh, Sevelen | lamp |
DE10112055A1 (en) * | 2001-03-14 | 2002-10-02 | Wila Patent Und Lizenzgmbh Sev | Ceiling light has lamp(s) between two lateral reflectors leaving upper lamp opening and near lamp opening; light outlet surfaces extend from outer connection to close to reflectors |
JP2007018877A (en) * | 2005-07-07 | 2007-01-25 | Matsushita Electric Works Ltd | Luminaire |
EP1891369A2 (en) * | 2005-06-13 | 2008-02-27 | Zumtobel Lighting GmbH | Illumination assembly for assisting human vision and well-being |
-
1997
- 1997-10-01 JP JP9268475A patent/JPH11111024A/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20104346U1 (en) | 2001-03-14 | 2001-06-07 | Wila Patent- Und Lizenzgesellschaft Mbh, Sevelen | lamp |
DE10112055A1 (en) * | 2001-03-14 | 2002-10-02 | Wila Patent Und Lizenzgmbh Sev | Ceiling light has lamp(s) between two lateral reflectors leaving upper lamp opening and near lamp opening; light outlet surfaces extend from outer connection to close to reflectors |
EP1891369A2 (en) * | 2005-06-13 | 2008-02-27 | Zumtobel Lighting GmbH | Illumination assembly for assisting human vision and well-being |
EP1891369B1 (en) * | 2005-06-13 | 2012-04-18 | Zumtobel Lighting GmbH | Illumination assembly for assisting human vision and well-being |
JP2007018877A (en) * | 2005-07-07 | 2007-01-25 | Matsushita Electric Works Ltd | Luminaire |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20040319 |