Discoloration lenses, also known as "photographic lenses." Glass lenses add silver halide, but the current mainstream is the resin discoloration lenses, acrylic resin lenses in the pyrazole ring and other chemicals added to the original transparent colorless lens, in the case of bright light, it will become a colored lens , To do the protection, it is suitable for indoor and outdoor use at the same time. Color-changing lenses are made of optical glass containing silver halide micro-crystals. According to the reversible reaction principle of light color interdependence, the color changing lens can rapidly darken under the irradiation of sunlight and ultraviolet rays, fully absorb the ultraviolet light and absorb the visible light neutrally. When it returns to the dark place, Can quickly recover colorless and transparent. Color lenses are mainly used in the open field, snow, indoor strong light workplace, to prevent sunlight, ultraviolet light, glow glow eye damage.
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