LED Blu-ray is an angel is not a devil

On the Internet there are a large number of reports on LED blue light eyes, and there are great doubts about LED demonization. LED is a good thing, but don't just kill it. It is necessary to sort out the basic concepts from a professional perspective.

Blu-ray is an angel is not a devil

The eyes can see the colorful world because the white light is a kind of mixed light and rich in various light colors. Although all kinds of objects around us do not emit light, they reflect the different reflective characteristics of each light color. various colors. The safflower is red because of strong reflection of the red light, and the green leaf is green because it is strongly reflective of green light. In the same way, the blue flowers appear blue because of the blue light in the illumination. If blue light is missing from the lighting, we cannot see the blue color of the blue flower. It is precisely because there are many different shades of light, including blue light, that make the world in our eyes colorful, so blue light is an angel, not a devil.

Blue mouse Blu-ray blinding causes

Mammals have a physiological phenomenon called adaptive memory physiological phenomenon. Humans also have this physiological phenomenon. It is to adapt to a certain long-term specific environment and to make a stress response. After a long time, even if it is far away from a specific environment, the stress response The state is preserved and remembered.

Many environmental factors can cause stress reactions to the human body, such as sun tanning skin, noise induced paralysis, and near objects caused by myopia. Here, sunlight, noise, and near objects are all specific environmental factors; skin darkening, hearing loss, and changes in eye focus are stress responses. When the human body has been in these environments for a long period of time (eg, 3-5 years), even if these unfavorable environments are removed from the human body, the human body is not in strong sunlight, noise, or close-up objects. However, the skin color will remain dark and the ears remain the same. , eyes still myopia. The phenomenon of these stress responses being preserved is similar to the phenomenon of human thought memory, which means that the stress response acquires memory, which is called adaptive memory.

The small mice are also mammals. In the long-term strong blue light environment, the blue-eyed ocular cells are inhibited, and other light-colored eye cells are degraded due to waste. At this time, once it returns to normal environment, vision is certainly a mess because of the adaptive memory phenomenon, but this responsibility should not be attributed to Blu-ray.

If, with normal LED light three color temperatures (6500K, 4000K, 3000K) in the evening lighting 5 hours. The mice perform outdoor activities during the daytime as usual. After the lights are turned off at night, the windows are required to have a slight light penetration, and certain indoor activities must be arranged. After a long period of time, the experimental results are compared with the control group (other artificial light sources) to prove that the LED The effect on the visual acuity of the 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 vision will be impaired. Of course, this can't be concluded that red light hurts vision.

LED Blu-ray overflow is not appropriate

We cannot think that blue light is abundant in LED white light because LED white light is derived from blue phosphor excitation. White LEDs are indeed made from blue LEDs plus yellow phosphors. The phosphor is excited by LED blue light and emits yellow light. Part of the LED blue light is absorbed by the phosphor. Part of the phosphor is transmitted through the phosphor layer to mix with the yellow light to form the desired white light. The white LED spectrum is obtained by the LED blue-ray mixed phosphor yellow light.

If it is said that transmitting blue light is called overflowing blue light, then LED white light must overflow a part of blue light, or else only yellow light is left. Blu-ray is not like the X-ray human eyes can not recognize. The amount of blue light can be felt by the eye. 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 high-quality Blu-ray overflow and a poor product Blu-ray overflow. The proportion of blue light in white light with the same color temperature is the same, and there is no saying that inferior white light and blue light are particularly prosperous.