glasses with auto lenses that change color in the sun. Frameless glasses with UV400. Light-filtering glasses for women. 99% UV protection, auto light filter, fashion computer glasses.

Clip shot from the actual product: In the clip, the effectiveness of the blue light auto lens filter is tested. It is found that the lens can filter UV light up to 400 NM (equivalent to a sunglasses lens) and effectively filter blue light from computers/mobile phones. The blue laser light cannot pass through the lens. When comparing ordinary lenses to blue light lenses, it is clear that with ordinary lenses, light can still pass through, but with blue light lenses, the blue laser light cannot penetrate the lens (the light only hits the lens surface and does not pass through). When exposed to light, the lens automatically turns black. Therefore, the area of the lens hit by the laser light darkens automatically, which is normal for auto lenses.

Note:

All types of auto lenses, when indoors, will not be as clear as ordinary lenses because they contain a color-changing substance within the lens. Therefore, when exposed to light, the color-changing substance activates automatically to help filter the light (making the lens less clear). Except in low light or at night, the lens will be clear as usual.