Are color-changing lenses good for the eyes?

u003cbru003eThe color-changing lens is also called 'photosensitive lens'. Because silver halide is added to the lens, the original transparent and colorless lens will become a colored lens when exposed to strong light, which is suitable for indoor and outdoor use. Qualified color-changing lenses can change the color of the lenses according to the intensity of external light, so that the eyes are protected from strong light stimulation. Good for eyes and harmless. But the poor quality of the color changing lens, although the price is cheap, on the one hand, the color change time and recovery time are relatively slow, and the effect of shielding strong light is not good; on the other hand, the coloring agent is uneven and the color change effect is worse. Color-changing glasses can use the principle of one-shot and three-purpose color-changing glasses. The secret of color-changing glasses lies in the lenses. In the lens manufacturing process, a substance sensitive to ultraviolet light-silver halide, and a small amount of copper oxide catalyst are pre-mixed. In the lens material of the color changing mirror, there is a change process very similar to the exposure imaging of photosensitive film. The silver halide decomposes when exposed to light and turns into many black silver particles, which are evenly distributed in the lens. Therefore, the lens appears dim and blocks the passage of light. This is the color darkening. However, unlike the photosensitive film, the silver atoms and halogen atoms generated after the decomposition of silver halide are still closely connected. When returning to a slightly darker place, under the action of the copper oxide catalyst, the silver and halogen recombine to form silver halide, and the lens becomes transparent again. The speed and depth of the color change of the color changing lens are related to the intensity of ultraviolet light and the surrounding temperature. The stronger the ultraviolet rays, the faster the discoloration speed, and vice versa; the higher the ambient temperature, the lighter the lens color, and vice versa. With the advancement of manufacturing technology, the rate of discoloration, especially the rate of fading, of the color-changing lens has been greatly improved, and the interference of temperature on the color depth has become less and less. Many color-changing lenses have been made quite excellent, such as the domestic Weixing color-changing lenses that cooperate with glasses, and the international Essilor color-changing lenses, which are very good choices. Related reading: Color-changing spectacle lenses

The increasing consumption demand in key segments such as oem sunglasses, odm sunglasses and oem sunglasses have been driving the sales of and its derivatives worldwide.

The guiding vision of Wenzhou Timeless Glasses is 'Bringing the best to everyone we touch'. By 'The best', we mean the best products, the best people and the best ideas.

Consumers like these are interested not just in custom eyeglasses they will spend their money on, but also in the human and environmental impact of the supply chain that produces those goods.

When selecting the best products for customers, we considered not only the custom eyeglasses, but also the odm sunglasses.

With innovative technology, our professionals can spend more time focused on strategies that will improve custom eyeglasses’s quality and deliver a more positive customers experience.