Blu-ray is all about? Correlate it with eye protection desk lamp?
Effects of blue light to the human eye is in fact an exaggerated, we believe that the damage can be divided into three categories, photochemical damage, heat damage and mechanical damage.
Blu-ray effect belongs to light chemical injury category, hot injury exists Yu infrared district, because we people eye of retinal temperature for 37 degrees, heat high will led to cell apoptosis died, Blu-ray 400-500nm range within, actually for retinal of light chemical effect is exists is big differences of, in 400-440nm range within, retinal of tolerance light strong lower, and 450-480 tolerance light strong is zhiqian of 3-5 times above,
LED peak spectrum between 450-480, so if all of its normal lighting, no damage to human eyes.
In fact, we found in the animal experiment, some Blu-ray wavelengths can inhibit the occurrence of myopia, while Blu-ray leads to macular degeneration, only indirect evidence from epidemiological surveys. 450-480nm, regular entire lighting environment (provide all illumination is largely a lighting design for uniform distribution)
No damage to the retina of the human eye, cellular and molecular experiments we have done. If 400-440, are less tolerant of the retina of the human eye, in fact, some junk LED Blu-ray in 400-440nm, so there is a problem.
Way to blue light hazard what?
Blu-ray may harm the health of people from two main products, first class is a direct lighting LED screen, this now from outdoor advertising screen enter the room, currently monitoring has been adopted in a large area, and the educational system is prepared for some time before the introduction of the screen, this is the most harmful.
Second class is the individual lighting, flashlight, there may be affected. Because of these lighting products are close to the human eye, high luminous intensity, so there are some security risks. When in use, its light never reaches the eye should be avoided. In fact, the 400-440nm, in the context of conventional lighting, there is harm in the eyes of people, us cellular and molecular experiments have found that for 2 hours, there will be cells apoptosis
For TV and the impact of cell phones on the human eye:
TV is light or backlight, backlight is direct, through the LCD display, and the intensity of television is not high, so television has little influence. Cell phones are a side-light, little eyes, but mobile phones are the most cause eye fatigue. The two parts you do not need to worry too much.
What lamp is eye protection desk lamp?
At present, we see no real eye-light, care should be taken into account and not only is no Flash.
Raised Sun really eye, Director of the China National Institute of standardization of Visual health and safety laboratory. Cai Jianqi Visual Studio Director Cai Jianqi find sunlight is also not well, the Sun is very complex, such as ultraviolet caused cataracts, Blu-ray is first discovered the problem in 1912 (or 1920), because a solar eclipse brought a large quantity of video in European blindness.
After the snows of the North, when sunny, the sun hits the snow, and then reflected to the human eye, stand could cause snow blindness, cataracts of the Tibetan people in China. This is the reason why wearing sunglasses outdoors.
So sunlight also need to distinguish between applications.