CNC Machine,Milling Machine,Machine Tool Shengyong Heavy-duty Machine Tool Manufacturing Co.,Ltd , http://www.hslathemachine.com
LED screen network reported that there have been a lot of reports on LED blue eyes on the Internet in the past few days, and there is a big suspicion of demonizing LEDs. LED is a good thing, don't just kill innocent. As it is necessary to sort out the basic concepts from a professional perspective.
Blu-ray is an angel, not a devil. The eyes can see the colorful world. Because the white light is a kind of mixed light, it is rich in various light colors. Although the various objects around us generally do not emit light, but because of their reflection on each light color. Different colors and different colors. The safflower appears red because of the strong reflection of the red light, and the green leaves show green because of the strong reflection of the green light. In the same way, because there is blue light in the illumination, the blue flowers show blue. If there is no blue light in the illumination, we can't see the blue color of the blue flower. It is precisely because there are many different colored lights including blue light in white light that the world in our eyes is full of colors, so blue light is an angel, not a devil.
The causes of blue light blindness in small mice have a physiological phenomenon called adaptive memory physiology. Humans also have this physiological phenomenon. They are adapted to adapt to certain long-term specific environments and respond to stress. After a long period of time, even if they are far away. In a specific environment, the state of stress response is preserved and memorized.
Many environmental factors can cause stress reactions in the human body, such as sunburning the skin, causing noise and causing nearsightedness. Here, sunlight, noise, and near objects are all specific environmental factors; skin darkening, hearing loss, and eye focal length changes are stress responses. When the human body has been in these environments for a long time (such as 3-5 years), even if it is out of these unfavorable environments, the human body is not in strong sunlight, not in noise, not in close-up scenes, but the skin color will still be dark and the ears will still behave. The eyes are still myopic. The phenomenon that these stress response states are preserved is somewhat similar to the phenomenon of human thinking and memory, that is to say, the stress response acquires memory, which is called adaptive memory phenomenon.
The mouse is also a mammal. In the strong blue environment for a long time, the blue-eyed cells are inhibited, and other light-colored eye cells are degraded due to waste. At this time, once you return to the normal environment, your vision will be a mess because of adaptive memory, but this responsibility should not be attributed to Blu-ray.
If it is normal light LED lighting (6500K, 4000K, 3000K), it will be rotated for 5 hours in the evening. The mice will perform outdoor activities as usual during the day. After turning off the lights at night, the windows need to be shimmered, and some indoor activities should be arranged. After a long period of time, the experimental results can be compared with the control group (other artificial light sources) to prove the LED. The effect on the vision of the little mouse.
In fact, animals can't live in a certain kind of monochromatic light for a long time. If you live in pure red light for a long time, your eyesight will also be damaged. Of course, this can't conclude that red light hurts your eyesight.
LED blue light overflow is not appropriate. We can't think that LED white light is rich in blue light because LED white light is obtained by blue light excitation phosphor. White LEDs are indeed made with blue LEDs and yellow phosphors. The phosphor is excited by the blue light of the LED to emit yellow light, wherein a part of the blue light of the LED is absorbed by the phosphor, and a part of the transparent phosphor layer is mixed with the yellow light to form a desired white light. The white LED spectrum is obtained by LED blue hybrid phosphor yellow light.
If the transmission of blue light is called overflowing blue light, then the LED white light must overflow a part of the blue light, otherwise there will be only yellow light. Blu-ray is not as recognizable as X-rays. The amount of blue light is different, and the eye can be felt. Generally speaking, the color temperature of the blue light component is relatively high, and the white light of 6500K is more than the yellow light blue component of 3000K. It should be noted that there is no such thing as a blue light overflow of a high-quality product and a blue light overflow of an inferior product. The proportions of blue light in white light of the same color temperature are the same, and there is no such thing as the inferior LED light white light blue is particularly rich.