 The maximum benefit LED lighting is popular, but what is the maximum benefit? In considering the future of the global environment, CO2 reduction is the real challenge. By switching to LED lighting, we reduce energy by reducing power consumption to less than half of the conventional illumination, and enable reduction of CO2. Another characteristics of the LED is the long lifespan unlike conventional lighting. As a result, that it can significantly reduce the number and effort the (labor and construction costs) to replace the light bulb. There are some other advantages such as excellent high-speed response (car tail lamp), very little point etc. attenuation of illumination at low temperatures and more advantages as well. |
 Why is it becoming a hot topic? What is LED in the first place? Why is it becoming a hot topic?  ●Three primary colors of lightRed R, green G, I and blue B. The three primary colors of light are different from the three primary colors of pigment system (paint or ink, etc.). Simply put red, blue, and is white it's light whereas become black when overlaying the green paint. Yellow Y and red and green overlap, the cyan C and green and blue overlap, you will magenta M and I will say this is acceptable color process. Please look at the circle of red R. G, B, Y, M will become white and overlapping with the cyan C to form a color overlaps red. So red R and cyan C I will say that there is a complementary color of relationship. Complementary color of similarly green G is magenta M, complementary color of blue B you can see that it is yellow. Please remember firmly this thing. It is important to have color correction using the filter. |
 So much of energy-saving performance is better How much do you save energy when you switch to LED lighting from incandescent and fluorescent lamps?Because LED lighting is a developing technology, it is constantly evolving. Although not be generalized because energy efficiency of the fluorescent lamp also has been improved more than ever, generally as compared to incandescent bulb 1/8 ~ 1/10 mm, energy saving of about 1/2 as compared with fluorescent lamps .
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 どうしてそんなに省エネなの？ そもそもＬＥＤ照明はなぜ省エネになるのですか？ 白熱球はフィラメントを加熱して光を出すので、その分のエネルギーが逃げてしまいします。また、蛍光灯は放電で発生する紫外線を蛍光体に当てて可視光線に変換するため、変換分ロスが生じます。ＬＥＤはそれ自体が電気を通す半導体を光源としており、電気を直接光に変えることができるため、発光効率が非常に高くなっています。発光効率lm/W（ワット当たりの光の量）でいうと、白熱球は15lm/W、蛍光ランプやＨＩＤランプでは80ｌｍ/W、これに対してＬＥＤは、現状では80lm/Wですが、今後は150lm/Wに達するものが市場に出回ると予想されます。発光効率はさらに高くなると予想されており、温室効果ガスの削減のために、大いに期待されています。 |
 Is there an ideal standard or standards? Are there any criteria and standards for choosing a good LED lighting?LED lighting in a developing stage of its technology, still does not have a standard of quality and performance. NPO, LED lighting Promotion Council in Japan, in the United States has NIST (National Institute of Standards and Technology), is aimed at standardization of the standards. The standardization has been preceded by the South Korea, "technical standards Institute" of Ministry of Knowledge Economy in March 2009 (corresponding to METI) and has issued the certification standards. Therefore, Korean "KS certification standards" will be a measure of choosing products distributed in Korea. In all cases, because now no JIS standards, and already LED lighting is on sale. However the reality of having "bad products" is also floating around cheap. Because reasons concerning electrical product, electromagnetic waves and, measures of over-current at the time of lightning, it is very important if there are measures of dust-proof and waterproof performance. Always before purchase, let's verify that the product been evaluated by the third-party organizations such as the Foundation for Electrical Safety & Environment Technology Laboratories (JET), PSE (Product Safety Electrical Appliance & Materials) and see their evaluation. |
 Which manufacturer is good? Which, among the leading lighting manufacturers of products of Japan, is more satisfying? No doubt that the products of leading lighting manufacturers seem to be assuredly guaranteed regarding the performance and others. In addition, because the LED is a semiconductor, and lighting manufacturers are many, you will not need to worry about a manufacturer of products as doing research of the characteristics of the manufacturers and LED dealing with the semiconductor. However, if you want to have a plan of cheaper purchase, as for ordering materials from multiple manufacturers or distributors for example, you may contact us and let's help you with the information and the estimation. |
 Is knowledge of lighting necessary? Please tell me the basics of lighting I should know prior to the introduction of the LED lighting! So far, since the LED lighting has no JIS standard, but with no knowledge at all there is a risk that of buying bad products or being misguided by the seller. Just to get the basic knowledge you can understand the description of the manufacturers and dealers, and it will help you think about the lighting plan. In addition to know the basic characteristics of the semiconductor, that will enable you to judge concerning the view of long life. ●Figure of basic characteristics of the light
 The light source as to be an infrared or ultraviolet other than the generated visible light may cause a damage of the object. |
 Catalog of viewing and light units In various ways there is a unit of the lighting of the performance, I do not know well how to read the catalog. Please tell me the minimum point I should know !The used lighting performance evaluation engages: (1) color temperature, (2) color rendering properties, (3) the light beam, (4) intensity, (5) illumination, (6) is the luminance. , Each unit, (1) K = Kelvin (representing a light color) (2) Ra = Arue (color rendering index), (3) lm = lumens (light flux), (4) cd = candela (luminosity), (5) lx = lux (illuminance), it becomes (6) cd / m2 = candela / square meter (brightness). Of course, to compare the same units with each other when you look at the catalog is to value it. You also need to make sure you actually see the product in the showrooms. Lighting test before purchasing is also can be performed to be more convinced. ■units of light to evaluate the performance of illumination ● K = Kelvin (color temperature) It is an important factor that determines the impression of space. Light of the light source is low as reddish or as high as whitish.  ● Ra = Arue (average color rendering index) The color of the reproducibility of things by the light of color rendering properties. The average color rendering index is the reference light and Ra100 is a numerical value as color shift is largely increasing. For food department and clothing stores, such as printing plant, color rendering properties are important in such areas where there is a need to look properly.
● ｌｍ＝ルーメン(光束) 光源から出る光の量のこと。数値が大きいほど明るい。消費電力が同じなら白熱電球は485ｌｍ、白色蛍光灯は3000ｌｍとその差は6倍。
● ｌｘ＝ルクス(照度) 単位面積当たりに入射する光束のことで、光源から出た光がある面にどの程度降り注いでいるのかを示す。直射日光下では10万ｌｘに対してオフィスの事務机の上は300~750ｌｘ程度。  ● ｃｄ/ｍ２＝カンデラ/m2(輝度)  ● ｃｄ＝カンデラ(光度)  光源自体が照らされた面の輝き（明るさの加減）のこと。光源からある方向に出る光の強さのこと。光源からの光はすべての方向に同じように光が出るわけではなく、方向によって光の強さは異なる。
光束・光度・照度・輝度の関係  輝度は、ある方向から見たときにどれだけ明るく見えるかを表し、高い・低いで表現される。見た目の明るさを評価するのに有効 |
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 What is the difference with fluorescent lamps? What is the difference between The LED lighting and fluorescent lamps type considering illumination and power consumption? As a reference for measuring the illuminance, there is lux (lx), Lux is calculated from the lumen (lm). Those of fluorescent light will appear to be superior lumen (lm), but the fluorescent lamp is off a 360-degree light. If LED lighting of a fluorescent lamp type basically provides lower beam facing downwards, the light beam at the time of a new article of fluorescent lamp's 2500 ~ 3000lm (40W type), if that is attached to the ceiling, the brightness falling on top of the desk is not really making 1500 ~ 1800lm. Therefore, if you choose the LED product of fluorescent lamp types which meet these criteria will give about the same degree of brightness. Concerning the power consumption, by replacing the LED fluorescent lamp type, you will consume about half 20W compared to the conventional fluorescent lamps. |
 Pitfalls of luminometer Is it mistake to choose the one that suits you from measuring the brightness of the luminometer ?Make no mistake that LED lighting has a different brightness from the fluorescent lamps that are currently installed. Lighting and brightness will continue to fall gradually over lighting time. If the already installed lighting has passed 3-4 years maintaining the same brightness, the new illumination falling of brightness then will no longer be maintained. The current fluorescent lamps when purchased were much brighter. In the case of LED lighting, irradiation range there is often narrower than the fluorescent lamp, and it is better that you make the illuminance measured at several points just below the lighting. In addition, during the measurement, you must have the consideration of such conduct after confirming whether it is or not the incoming external light using same measurement instrument. |
