Anti-blue glasses can effectively reduce the continuous damage of blue light to eyes. Through the comparative detection of portable spectrum analyzer, the intensity of blue light emitted by mobile phone screen is effectively suppressed after using anti-blue glasses, which reduces the harm of harmful blue light to eyes.
Anti-blue glasses mainly reflect harmful blue light by coating the lens surface, or add anti-blue light factor to the lens substrate to absorb harmful blue light, thus blocking harmful blue light and protecting eyes.
correlation technique
1, substrate absorption: the lens substrate is added with anti-blue light factor to absorb harmful blue light in life, thus achieving the protection purpose of blocking blue light.
2. Film reflection: the lens surface is coated with a film, which reflects harmful blue light to achieve the purpose of blocking blue light.
3. Substrate absorption+thin film reflection: This technology combines the advantages of the first two technologies to achieve double-effect protection.