Spectrometer case study

Spectrometer case study

It is easy to measure on site, also it is good that the graph display is easy to understand.

Green Utility contributes to the prevention of global warming and people's health with unique products.

A company founded in 2003 as a joint project between industry and academia. The foundation's aim was to put Nagoya University's research findings into practice and improve energy-related health problems. After the war, Japan's economy and society have achieved high growth, but on the other hand it is very regrettable that the number of deaths by suicide in Japan is high and there are many diseases such as cancer, depression, mental disorders and mental illnesses. autonomic imbalance: the cause is that the energy (light, water, air, food, movement) needed by humans is not used correctly.

Based on this awareness of the problems, Green Utility develops and sells original LED lighting, power control devices and purification devices that are water-saving, environmentally friendly and beneficial to people's health. Furthermore, it carries out environmental consultancy activities specializing in energy, and consequently contribute to the development of society.

Less blue light, more friendly to human body, “Myo-Ou” LED solar light

The blue wavelength light from LED lighting is called blue light, and its negative health effects have been considered a problem. Blue light with a wavelength of 460 nm is a strong light that reaches the back of the eye, causing many eye disorders such as macular degeneration and inflammation of the retina. Furthermore, it has been found to increase the risk of sleep disorders, due to disturbance of the autonomic nervous system and suppression of melatonin secretion.

Spectrum comparison

Figure 1: General LED lighting	Figure 2: "Myo-Ou" solar LED	Figure 3: Sunlight

The figures above show the spectrum of three types of light sources measured with a Sekonic spectrometer. Fig. 1 on the left shows the measurement results of LED general lighting. From this graph you can clearly see that blue light is strong in LED general lighting. On the other hand, the solar LED "Myo-Ou" measured in Fig. 2 is the main LED lighting product of Green Utility, and it can be seen that the intensity of blue light is suppressed and the spectrum is close to that of blue light. solar in Fig. 3. Green Utility's LED lighting products are used in a wide range of fields, including commercial facilities, public facilities and transportation. Green Utility contributes to the health of the people who work and live there by suppressing the generation of blue light and electromagnetic waves from LED lighting.

Reasons to choose the Sekonic portable spectrometer

A spectrometer is a useful instrument that can measure various types of light sources such as LEDs, fluorescent lamps, mercury lamps and incandescent lamps, and can analyze the quantity, color and quality of light such as illuminance, color temperature, index of color rendering and spectrum. Green Utility uses our spectrometers to analyze light from lighting products, to measure before and after lighting replacement at customer sites, and to demonstrate lighting products by showing instant measurement results on site. When selecting the spectrometer, the key point was that the following features of the Sekonic portable spectrometer were suitable for their intended use.

【Sekonic Spectrometer Features】

(1) Practical measuring tool that can be easily used on site

(2)Swivel measuring head to easily point towards the light source

(3) The measurement time is short and the measurement results can be obtained immediately

(4) Measurement results are displayed graphically, making them intuitive and easy to understand

Figure 4: On-site spectrum measurement and color rendering index	Figure 5: Numerical and graphical color rendering index display

As shown in Fig. 4, because the swivel measuring head is rotatable, it is possible to measure with the light receptor facing the light source and the display facing the user. The measurement results are displayed immediately and various measurement indices such as illuminance, color temperature, color deviation and color rendering index, etc. they can be displayed numerically and also in intuitive graphs. As shown in Fig. 5, you can view the color rendering index in Ra, and view graphs and numerical values ​​for each color from R1 to R15. From the measurement results in Fig. 5, it is clear that Green Utility's LED lighting has a very high level of color rendering.