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Double Bridge Photosun Bluecut Sunglasses block UV420 radiation and high-energy blue light from digital displays. Lenses darken automatically upon outdoor UV exposure to manage light transmission levels. The metal double-bridge frame resists impact and maintains structural alignment during daily wear.
Key Features
- UV420 Blue-light Filtering: Blocks high-energy visible light and ultraviolet rays up to 420nm. Reduces eye strain from digital screens.
- Photochromic Color Change: Lenses transition from clear to dark gray under UV light. Protects eyes from sudden outdoor brightness.
- Anti-break Metal Frame: High-impact alloy construction with a reinforced double bridge design. Resists damage from road dust.
- Anti-reflective Coating: Multi-layer film eliminates internal glare and distracting light reflections. Improves clarity during night driving.
Frequently Asked Questions
What is UV420 protection in sunglasses?
It blocks ultraviolet radiation and high-energy blue light up to 420nm. This provides higher protection than standard UV400 against screen-induced eye fatigue.
Do photochromic lenses block blue light?
These lenses contain blue-cut filters that function independently of the tint. They block digital radiation even when the glass remains clear indoors.
