Advantages and disadvantages of LED backlight source
With the increasing attention of LEDs, LED displays and LED lighting have made the manufacturers earn a lot of money. But the business is not satisfied with this, and began to apply LED to the lucrative beauty industry. Some merchants claim that LED red and blue light has an effect on the skin, and developed an LED beauty instrument. As long as the blue skin is used to illuminate the facial skin, the mood can be stabilized and the attention can be focused. The red light can be used for the proliferation of collagen and improve the small lines. Pore, swelling after surgery. In fact, is LED really so amazing?
According to the business promotion, the use of LED phototherapy is to provide light energy in a similar way that plants absorb light energy from the sun. Gives beneficial light, activates cells, stimulates the body's natural processes, and promotes the regeneration of new proteins and cells. However, many "hands-ups" still have some doubts before buying, buying, and buying. Is it possible to use the red and blue light to illuminate the skin? Is it like some product propaganda written, blue light source can be used to calm emotions, focus attention; red light source can be used for collagen proliferation, improve small lines, pores, swelling after surgery and other functions?
According to the doctor, they used different wavelengths of LED light, three times a week, for a total of 12 times to illuminate the skin. After the end of the test, the irradiated parts were observed, and the water content of the stratum corneum of the skin before and after the irradiation, the change of the brightness of the skin color, and the shape, color and the influence of the collagen fibers and the elastic fibers in the dermal tissue were compared to judge the light aging of the LED light. The role of the skin.
The results show that different wavelengths of LED illumination have different effects on the skin. After 14 cases of 630 and 850 nm, the skin texture of the test was lightened and the pigmentation was reduced in 10 cases and 7 cases. After the test with 530 nm wavelength LED light, there were 7 cases. The skin texture of the subject was deepened and the pigmentation increased. In addition, after 630 and 850 nm illumination, the water content of the stratum corneum of all subjects was significantly increased. This shows that medical LEDs do have an effect on the skin.
However, it is worth noting that in the treatment of photoaging, it is necessary to select the LED light of the appropriate wavelength to achieve the best effect. As for the illumination wavelength of the online red and blue illumination instrument, it may not meet the requirements of everyone. And after all, the experiment is only a small scope, and does not have a representative meaning. Those who want to improve the skin condition still need to go to the hospital for a formal examination to get the right medicine.
In fact, different wavelengths of LED illumination can have different effects on the skin. However, because each person's skin condition is different, it is necessary to use the LED light of the appropriate wavelength to improve the skin, and the LED light does not have some functions such as stable mood and concentration. And the beauty effect of LED varies from person to person, it is not suitable for yourself, and customers need to carefully consider it.