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Blue Light Blocking Glasses

What is Blue Light?

1. Usually we define visible light with wavelengths from 380 nanometers to 500 nanometers as blue light.

2. The blue light blocking lens we usually talk about is mainly used for the protection of led light sources, mobile phones, ipad, computers and other liquid crystal displays etc. Research shows that the peak wavelength of the led light source is basically around 435 nanometers.

Wohu Optical Blue Light Blocking
Wohu Optical Blue Light Blocking
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