Why Choose Photochromic lenses
Photochromic lenses are a type of lens that changes its optical properties in response to light exposure. They are designed to darken in bright light and return to a clear state in lower light conditions. This ability to adapt to changing light conditions makes them popular for sunglasses and eyeglasses.
The photochromic effect is achieved by incorporating a photochromic compound into the lens material. This compound contains molecules that have two states: a clear, colorless state and a colored state. In the clear state, the molecules are twisted in a way that allows light to pass through the lens efficiently. When exposed to UV light, the molecules absorb the light energy, which causes them to untwist and change color. This change in color absorbs more light, which makes the lens darker. As the UV light intensity decreases, the molecules revert to their twisted state, resulting in a clearer lens.
The benefits of photochromic lenses include:
1. Adaptation to changing light conditions: Photochromic lenses provide comfort and protection by adjusting their darkness in response to the surrounding light, eliminating the need to switch between prescription sunglasses and regular glasses.
2. Glare reduction: The darkening effect of photochromic lenses helps to reduce glare, improving visibility in bright conditions.
3. UV protection: Photochromic lenses offer built-in UV protection, blocking harmful UV rays from reaching the eyes.
4. Cosmetic advantages: Photochromic lenses eliminate the need for additional frames or lenses, resulting in a sleeker, more cosmetic appearance.
Photochromic lenses offer a convenient and stylish solution for individuals who want clear vision in varying light conditions without the hassle of switching between different pairs of glasses.
The photochromic effect is achieved by incorporating a photochromic compound into the lens material. This compound contains molecules that have two states: a clear, colorless state and a colored state. In the clear state, the molecules are twisted in a way that allows light to pass through the lens efficiently. When exposed to UV light, the molecules absorb the light energy, which causes them to untwist and change color. This change in color absorbs more light, which makes the lens darker. As the UV light intensity decreases, the molecules revert to their twisted state, resulting in a clearer lens.
The benefits of photochromic lenses include:
1. Adaptation to changing light conditions: Photochromic lenses provide comfort and protection by adjusting their darkness in response to the surrounding light, eliminating the need to switch between prescription sunglasses and regular glasses.
2. Glare reduction: The darkening effect of photochromic lenses helps to reduce glare, improving visibility in bright conditions.
3. UV protection: Photochromic lenses offer built-in UV protection, blocking harmful UV rays from reaching the eyes.
4. Cosmetic advantages: Photochromic lenses eliminate the need for additional frames or lenses, resulting in a sleeker, more cosmetic appearance.
Photochromic lenses offer a convenient and stylish solution for individuals who want clear vision in varying light conditions without the hassle of switching between different pairs of glasses.