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Electrochromic

What is Povec Optics Electrochromic (EC) Technology?

POVEC Optics leverages advanced electrochromic technology to create lenses that actively and instantly adjust their tint in response to changing light conditions. Unlike conventional photochromic sunglasses or transition lenses, which rely on UV exposure, electrochromic glasses offer precise, on-demand light control — ensuring clear, comfortable vision in any environment.

Integrated into POVEC sunglasses and sports glasses, this technology delivers high-contrast optics and anti-glare performance while maintaining UV400 protection, making it ideal for activities such as cycling, running, or hiking. By combining scientific innovation with practical outdoor performance, POVEC optics set a new standard for adaptive sports eyewear.

"Electrochromic Sandwich"

The film thickness does not exceed 0.5 millimeters, enabling management of the full spectrum, creating a soft and comfortable environment.

Electrochromic layering diagram

Evolution of Electrochromic Technology

First- and second-generation electrochromic systems were limited to flat surfaces and small areas, restricting their use in sports sunglasses and other active outdoor applications.

Third-Generation Breakthrough

POVEC now uses third-generation solid-state electrochromic technology, featuring a flexible PET substrate and advanced composite materials. This enables large-area, curved lenses perfect for POVEC sports sunglasses, cycling sunglasses, running sunglasses, and hiking sunglasses.

Key Advantages of Third-Generation

  • Fast, precise tint adjustment for different lighting conditions.
  • High durability and impact resistance for rugged outdoor use.
  • Enhanced optical comfort with reduced glare and better high-contrast lens.
  • Reliable UV400 protection and anti-glare performance for long-term eye safety.
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Upgrade your shades

Electrochromic Sunglasses Photochromic Sunglasses
Trigger Electrical Current/Voltage UV Light Exposure
Speed Instant ResponseTint adjusts within seconds through precise electronic control — no lag when light changes. Slow ReactionRelies on UV exposure; transition can take minutes, often too slow for active use.
Control Active & PreciseUser controls tint degree and speed via voltage. Passive & AutomaticTinting is strictly dependent on external light intensity.
Precision & Stability Voltage-Controlled PrecisionMaintains consistent tint level without over-darkening or color distortion. Inconsistent TintVaries with temperature and UV intensity; easily over- or under-reacts.
Durability & Longevity Long-lasting and Stable PerformanceSolid-state materials ensure years of consistent tint response without fading. Less DurableUV exposure and temperature changes cause yellowing and reduced responsiveness over time.
User Control Smart & AdjustableUsers can manage tint level directly for personalized comfort. No ControlEntirely dependent on ambient light conditions.
Visual Comfort Consistent ClarityReduces glare while maintaining contrast and true color balance in any lighting Fluctuating VisionUnstable transitions cause discomfort and eye fatigue.