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High-Definition Photochromic Gray Optical Lenses from China Suppliers and Factory for Ultimate Eye Protection
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Data
| Product | Photochromic lens | Index | 1.553 / 1.597 / 1.667 |
| Material | Resin / Acrylic / MR-7 / MR-8 | Abbe Value | 34 / 42 / 32-33 |
| Diameter | 65 / 70 / 72 / 75 | Coating | HMC / SHMC / Blue / Green |
Performance
Rapid discoloration
UV protection
Anti reflection
Wear resistance
High transmittance
Waterproof
Anti-fingerprint
Characteristics of photochromic lenses Adaptive lighting
Photochromic lenses automatically change color when exposed to ultraviolet light to resist the effects of glare. After being removed from the ultraviolet environment, the lens will return to a transparent state. This automatic adjustment feature eliminates the need for users to manually replace lenses or perform other operations, making it very convenient to use. Its working principle is to add photochromic dyes inside the lens, which undergo molecular structural changes under the action of ultraviolet light, thereby changing the color and transparency of the lens.
Characteristics of photochromic lenses High transparency
Although photochromic lenses darken their color during color change, their transparency does not significantly decrease. This is because the manufacturer uses high-quality resin materials and advanced optical technology to ensure high transparency and clarity of the lenses. Compared to other lenses, photochromic lenses have even higher transparency, providing a better visual experience.
Photochromic lenses of different colors and their effects
Tea changing lenses:
Effectively improve visual contrast and clarity, suitable for environments with severe air pollution or fog.
Gray lenses:
Can effectively reduce light intensity, have high color reproduction, and are suitable for all people to use.
Pink and purple lenses:
Filter out stray light, block strong light, soften light, suitable for women's daily wear.
Blue changing lenses:
Effectively absorb stray light in visible light, relieve visual fatigue, suitable for beach play.
Yellowing lenses:
Enhance visual effects in foggy and dusk environments.
Frequently Asked Questions
How do photochromic lenses work?
Photochromic lenses contain specialized optical dyes that react chemically to ultraviolet (UV) radiation. When exposed to UV light, the molecular structure changes, causing the lenses to darken. When the UV light fades, the structure reverts, returning the lenses to their clear state.
How long does it take for the lenses to change color?
They react almost instantly upon exposure to sunlight, reaching maximum darkness within 30 to 60 seconds. Transitioning back to clear indoors generally takes about 2 to 5 minutes, depending on the environment temperature.
Do photochromic lenses work inside a car?
Standard photochromic lenses require direct UV exposure to darken. Because modern car windshields block the majority of UV rays, these lenses will not darken significantly inside a vehicle.
What are the main benefits of using photochromic lenses?
They offer continuous UV protection, reduce glare, minimize eye strain, and provide the convenience of having both regular prescription glasses and sunglasses in a single pair.
Which lens color is best for my needs?
Gray lenses offer true color perception and are ideal for general outdoor use. Tea (brown) lenses enhance contrast and depth, making them perfect for driving and foggy environments. Blue, pink, and yellow lenses offer targeted relief for specific light settings like beaches or dusk.