What are the effects of different light sources on health

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The influence of lighting on health is not only the spectral components of the light source but also the electromagnetic radiation, noise, lamp glare, light source flickering and safety of lamps and lanterns. Therefore, the presence of harmful wavelengths in the spectrum does not mean that it will have adverse effects on health. In fact, these light sources have been accompanied by people’s work and life for many years.

The basic components of all the light are red, green and blue. The blue light in the light source has always had an effect on the retina of the human eye and it will always accompany human daily life. As long as we learn reasonable avoidance and scientific use, blue light can be controlled within the safe value.

By analyzing the spectra of different lighting, we hope to help you to understand the effects of lighting on health.

🔹 Incandescent lamp

Incandescent lamps are widely used in various lighting applications

Factors affecting health in the spectrum of incandescent lamp

1. It contains small ultraviolet UV-A, no need to consider its effect on health

2. It does not contain ultraviolet UV-B

3. Less blue light, less eye irritation, In indoor lighting, the blue light in the spectrum of the incandescent lamp is the safest

4. The near-infrared content is high, long-term lighting can lead to dry skin and wrinkles. The surface temperature of the light source is high and easy to burn

Long-term direct exposure to eyes with high-intensity infrared rays can also cause cataracts. Owing to the low luminous efficiency and energy consumption, the incandescent lamp has been phased out.

🔹Metal halide lamp

Metal halide lamps are widely used in commercial lighting environment, more applications.

Factors affecting health in the spectrum of Metal halide lamp

1. It contains ultraviolet UV-A, has an effect on health

2. It contains small ultraviolet UV-B, no need to consider its effect on health

3. The content of blue light is high, which can cause retinal damage

4. The near-infrared content is medium, long-term lighting can also cause dry skin and easy to cause wrinkles, the surface temperature of the light source is high and easy to burn

Metal halide lamp is widely used in commercial lighting, especially in the jewelry store, clothing store and so on. It can be seen from the picture that the metal halide lamp contains ultraviolet and infrared rays. The high color temperature metal halide lamp also contains more blue light components, which is harmful to the human eyes. Long-term use the metal halide lamp in the short range may cause skin stains.

🔹Fluorescent lamp

Fluorescent lamps are widely used in various lighting environments, with the largest range of applications.

Factors affecting health in the spectrum of Fluorescent lamp

1. It contains ultraviolet UV-A, has an effect on health

2. It contains small ultraviolet UV-B, no need to consider its effect on health

3. The content of blue light is high, which can cause retinal damage

4. It contains small near-infrared rays, no need to consider its effect on health

The luminescence principle of the fluorescent lamp is that the ultraviolet light inside the lamp tube stimulates the fluorescent powder of the inner wall of the lamp tube to produce white light, there will be ultraviolet leaks. Many people think that the glass of the lamp tube can absorb the ultraviolet light, In fact, the lamp glass cannot fully absorb ultraviolet light. From the spectrum analysis, we can see that there is ultraviolet radiation in the fluorescent lamp, but the high-quality fluorescent lamp has relatively small ultraviolet leakage, and the ultraviolet light leakage of the poor quality fluorescent lamp is large.

Long-term use of fluorescent lighting will have some damage to the skin, the color of the skin will be red, the water content of the skin will decrease.

Studies have shown that working or studying under a fluorescent lamp for a day, the ultraviolet rays you absorb are equivalent to one hour in the sun.

Therefore, the installation of fluorescent lamps in these places needs to detect whether the light source is in conformity with the GB/T 20145-2006 standard. With the rapid development of LED lighting technology, the cost advantage of the LED light has exceeded the fluorescent lamp. With the improvement of environmental protection awareness, fluorescent lamps will gradually withdraw from the lighting market.

🔹LED lamp

LED lamps are widely used in various lighting environments, and the application amount is gradually increasing.

1. It contains very small ultraviolet UV-A, no need to consider its effect on health

2. It does not contain ultraviolet UV-B

3. The content of blue light is high, it may cause retinal damage, and the blue light radiation below 3500K is safer

4. Near-infrared ray content is almost no, no need to consider its effect

The white light of the LED is generated by a combination of blue light generated by the inner chip of the bulb and the yellow phosphor coating on the chip.

LED lighting source has many advantages beyond the traditional light source, is the development direction of lighting source, we have begun to enter the era of LED lighting, but, if we don’t pay much attention to the influence of blue light on human eyes in LED lighting, The “blue light hazard” of the Led lamp will exceed the metal halide lamp and fluorescent lamp. The high color temperature will cause the “blue light hazard” more serious. The “blue ray hazard” is produced in the illumination environment without detection, only under the scientific method of use can guarantee the security. 

The greater the power of the LED lighting products, the higher the harm of blue light. Usually, the LED lamp above 20W should pay attention to the height of installation, the higher the height of the installation, the less the harm of blue light. The blue light radiation of LED lighting source decreases with the color temperature, and the white light above 6500K has the blue light radiation effect. Therefore, the color temperature of the LED light of Oeegoo is controlled within 5000K.

 🎈 For commercial lighting, it is recommended to use the LED lamp below 6000K, the highest should not exceed the 6500K;

 🎈 For office lighting, it is suggested to use the LED lamp between 5000K and 3200K

 🎈 For home lighting, try to use a single LED lamp with a power of less than 8W, and the color temperature is below 3500K

 🎈 For reading lighting, it is best to use high color rendering LED lamp, the color temperature is below 3200K and the power is less than 6W

 

 

 

 

 

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