SUNDAY 07 JANUARY, 2018 | RSS Feed

What are the effects of different light sources on health?

by Helen Lumia | post a comment

Effects of illumination on health is not only the spectral composition of the light source, comprises a lighting drive part of the electromagnetic radiation, noise, light or lamp light glare, flicker, lighting safety and other aspects, therefore, to see the presence of harmful wavelength spectrum, does not mean necessarily have adverse effects on health, in fact, these light sources have been with people's life and work for many years.

The basic components of all the light is red, green and blue, blue light lighting source of the retina has existed, and will always accompany with human life, as long as we learn to avoid the use of reasonable and scientific, harmful blue light can be controlled in a safe range.

Based on the full spectrum of professional artificial light source, we will provide you with science knowledge from a professional point of view, hoping to help you clearly understand the health impact of artificial lighting.

Incandescent lamp

The effect of the spectrum of incandescent lamp on health

1, the ultraviolet UV-A content is very few, can not consider the ultraviolet radiation to the health effect;

2, the content of ultraviolet UV-B was not;

3, the content of blue light is less, the stimulation of the eye is small, the blue light in the light spectrum of the incandescent lamp is the safest in the interior lighting.

4, the near infrared content is high, the long-term lighting will cause dry skin, easy to cause 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. From a healthy point of view, the incandescent lamp is very small.

Halogen lamp

The effects of the halogen light spectrum on health

1, the ultraviolet UV-A content is very few, can not consider the ultraviolet radiation to the health effect;

2, the content of ultraviolet UV-B was not;

3, the content of blue light is less, the stimulation of the eye is small, the blue light in the halogen light spectrum is safe in the interior lighting.

4, the near infrared content is high, the long-term lighting will cause dry skin, easy to cause 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.

Because of low luminescence efficiency and high energy consumption, halogen lamps have been phased out. From a healthy point of view, halogen lamps are the least affected.

Metal halide lamp

The effects of Metal halide lamp spectrum on health

1, the content of ultraviolet UV-A has an effect on health.

2, the ultraviolet UV-B content is small, can not consider;

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, easy to cause wrinkles, the surface temperature of the light source is high and easy to burn.

The metal halide lamp in commercial lighting using a large amount of, especially in the jewelry store, clothing stores near distance, can be seen from the figure, the metal halide lamp with ultraviolet and infrared, blue component metal halide lamp high color temperature also contains more, there is damage to the human eye, long-term close using metal halide light can cause skin splash.

In the presence of LED lighting, because the lighting effect of the metal halide lamp, high color, with no alternative source, this problem is rarely mentioned, LED jewelry counter lighting solutions of ultraviolet and infrared radiation, however, many jewelry lighting LED light source with higher color temperature, cause effect blue light on the retina than the metal halide lamp increases; metal halide lamp is still in widespread application, need to use.

Fluorescent lamp

1, the content of ultraviolet UV-A has an effect on health.

2, the ultraviolet UV-B content is small, can not consider;

3, the content of blue light is high, which may cause retinal damage.

4, the near infrared ray content is small, can not consider the influence of near infrared ray.

The luminescent principle of fluorescent lamp is fluorescent lamp in UV excitation of the inner wall of the tube and produce white light, the presence of ultraviolet leakage, many people think of the glass tube will absorb ultraviolet light, in fact, the lamp glass cannot absorb ultraviolet light completely, you can see from the spectra of fluorescent lamp test to the ultraviolet spectrum; this indicates that there is ultraviolet radiation, ultraviolet fluorescent lamp only leaked quality is relatively small, the fluorescent lamp ultraviolet leakage of poor quality, it need to pay attention to this problem;

Long term use of fluorescent lighting, the skin will have a certain damage, the skin color will be red, the moisture content of the skin has decreased;

Studies have shown that the ultraviolet light absorbed under a daylight lamp or a day of study is equivalent to one hour in the sun.

So, these places need to install fluorescent lamp light source detection conforms to the GB/T standard of 20145-2006; with the rapid development of LED lighting technology, LED light source price advantage has been close to the fluorescent lamp, with the awareness of environmental protection to enhance the dominant position, the fluorescent lamp will gradually exit lighting market.

Although LED light gradually replace fluorescent lamp, ultraviolet radiation, we just stay away from the fluorescent lamp but as the Blu ray radiation in white light, no matter what form of artificial light, is an inevitable problem, white must contain blue light, especially high temperature LED light is the need to control, as health lighting products must comply with the relevant national standard light radiation, otherwise, the development of Blu ray radiation effects on the retina will haunt the LED illumination light source.

The influence of the blue light in the white on the human eye, not only exists in the fluorescent lamp, we usually use the TV, computer, mobile phone display, the backlight is blue light radiation (backlight is white), a lot of background and picture is in blue tones, the human long-term look screen will have a negative impact on the human retina. Blue component generated by the equipment for the elderly and children should pay more attention to the use of anti blue lenses, can effectively improve the problem.

LED lamp

1, the ultraviolet UV-A content is very few, can not consider its influence;

2, the content of ultraviolet UV-B was not;

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, there is no need to consider its effect.

LED white light is generated by the internal chip and the blue lamp cover on the chip of yellow fluorescent powder after the white light.

LED lighting has many advantages beyond to the traditional light source of the light source, is the development direction of the light, we have entered the era of LED lighting, but if not pay attention to the effect of blue LED lighting in the eye, so that the "blue light hazard" more than metal halide lamp and fluorescent lamp, LED light source color temperature will lead to high "blue light hazard is more serious," blue light hazard "is generated in the lighting environment in the unconscious, security can only in the use of scientific methods; the most important is the need to have the basic knowledge of light source producer.

"Blue light hazard" is a public health problem, the product information should be included in the content, the Blu ray radiation detection LED lighting is the only method of security products; that is, LED lighting does not necessarily mean the existence of "blue light hazards" blue light radiation and radiation time is the premise of distinguishing blue light hazard ".

The greater the power of LED lighting products, the higher the harm of Blu ray. Usually, the installation height of 20W LED light source is usually used. When the installation height is higher, the harm of blue light is smaller.

The reduced amount of blue light radiation LED light source with lower color temperature, color temperature in the low power 3500K-2800K LED light source in line with national standards, white light color temperature above 6500K, there is the effect of blue light radiation, unbelievable, LED lighting production in China, most of the products is high temperature;

With the increase of chromaticity, the amount of blue light radiation and the color rendering increase of LED lighting source indicate that the phosphor needs more blue light radiation energy and excite wider spectrum. Therefore, the LED lighting source with high chromogenic index is relatively safe.

1. For commercial lighting, it is recommended to use LED white light below 6000K for color temperature, and the highest should not exceed 6500K.

2. For office lighting, it is suggested that color temperature be used between 5000K and 3200K.

3, for home lighting, the power of a single lamp is less than 8W LED, and the color temperature is below 3500K.

4, for lighting with LED, as far as possible to use high color display products;

5. For reading desk lamps, it is best to use LED light source with high color display and color temperature below 3200K and the power is less than 6W.


What are the effects of different light sources on health?

Next News:


[more..]  Month News archive      All News List