Here’s how it works: Each lens comprises two polarized glass pieces layered together. Rotating the front piece alters the tint, making the lens lighter or darker. Gradated markings ensure ...

SEE ALSO: CES 2025 highlights: What we've seen so far Chamelo brought a number of its latest products to CES, but all of the company's smart glasses focus on one main feature: Changing the tint on ...

So, why not use them for adjustable-tint sunglasses ... variable ND filter consists of two pieces of polarized glass, arranged one in front of the other. When the front piece is rotated to ...