The white light emitted by the light source of the LED desk lamp can form a blue light excitation phosphor mainly by a wavelength of 450 to 455 NM, wherein the lower the wavelength, the stronger the firing ability. Usually, the factory wavelength of the LED light source is controlled within 500 NM, generally 450-455 NM or 455-460 NM, which are the most radiation-damaged sections. If the wavelength of the LED desk lamp becomes large, the ability to excite the phosphor decreases, and the luminous efficiency decreases. In order to pursue brightness, the manufacturer usually strengthens the blue light intensity of the LED desk lamp light source. If the human eye looks at such a light source for a long time, it is inevitable that the eye will be damaged by blue light.
Household LED lighting is used as little as possible. Special LED eye protection lamps are in the test period, and LEDs are only suitable for auxiliary lighting.
Research by Dr. RHWFunk, a German ophthalmologist, pointed out that when "inappropriate light" continues to illuminate our eyes, it can cause dysfunction, especially when the three primary lights, computer screens, etc. High-energy short-wave blue light with regular frequencies, these short-wave blue light have extremely high energy and can be worn
The lens passes through the retina and causes photochemical damage to the retina, directly or indirectly causing damage to cells in the macular area.
