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1.67 Spin Photochromic Gray HMC Optical lenses
Color-changing lenses, also known as “photosensitive lenses”. According to the principle of photochromatic tautometry reversible reaction, the lens can darken rapidly under light and ultraviolet irradiation, block strong light and absorb ultraviolet light, and show neutral absorption of visible light. Back to the dark, can quickly restore colorless transparent state, ensure the lens transmittance. Therefore, color-changing lenses are suitable for indoor and outdoor use at the same time to prevent the damage of sunlight, ultraviolet light and glare to the eyes.
