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Photochromic Gray Optical Lenses with SHMC Green Coating - China Suppliers and Factory Quality 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
Intelligent color change
UV protection
Anti reflection
Wear resistance
High transmittance
Application Scenarios for Photochromic Lenses
Photochromic Gray lenses are suitable for people who frequently travel, engage in outdoor activities, or work, such as hiking enthusiasts, sanitation workers, traffic police, etc. They can also be used for elderly people after cataract surgery, and it is recommended to wear brown lenses to reduce light stimulation.
Note:
However, teenagers and full-time drivers may not be suitable for wearing color changing lenses, as regular color changing lenses do not change color inside the car and are more suitable for using polarized sunglasses while driving.
Color is an Important Consideration Factor
When choosing photochromic lenses, color is an important consideration factor. The common colors of color changing lenses are gray, brown, and green, with gray and brown being the most commonly used.
Gray lenses:
Can effectively absorb infrared rays and block 98% of ultraviolet rays. Observing objects through gray lenses, the natural color of the object will not change, but the overall tone will darken and the light intensity will be significantly reduced, providing a more realistic and natural visual experience.
Tea colored lenses:
Can fully absorb ultraviolet rays and effectively filter blue light, thereby improving visual contrast and clarity, bringing a brightening effect. It is particularly suitable for wearing in poor air quality or foggy environments, and can be considered the preferred choice for drivers.
Advantages of Photochromic Lenses
UV420 Photochromic Gray Lens:
100% blockage of harmful UV rays.
Diminishing damage from strong sun ray and restoring image accuracy.
Light intelligent lenses automatically adapt to changing light conditions.
Anti-Reflection Coating and spin coating process.
How is spin coating technology implemented:
The discoloration factor is uniformly applied to the substrate surface at high speed, No matter how high the degree, each area is guaranteed to change color completely evenly.
Advantages of spin coating process:
Spinning coating process is the most advanced technology at present, discoloration dye is applied to the surface of the lens (above the substrate) by spin coating technique, to form a discoloration layer. The color change layer has strong adhesion, high firmness, and more uniform and stable color change.
Frequently Asked Questions
What are the technical specifications of your photochromic lenses?
Our photochromic lenses come in refractive indexes of 1.553, 1.597, and 1.667. They are manufactured using Resin, Acrylic, MR-7, and MR-8 materials, featuring Abbe values of 34, 42, or 32-33. They are available in diameters of 65, 70, 72, and 75mm with HMC, SHMC, Blue, or Green coatings.
Who should wear Photochromic Gray lenses?
Photochromic Gray lenses are highly recommended for individuals who frequently travel, work outdoors, or engage in outdoor activities (like hikers, traffic police, and sanitation workers). They are also beneficial for elderly individuals post-cataract surgery to minimize light stimulation.
What is the difference between Gray and Tea-colored photochromic lenses?
Gray lenses absorb infrared and block 98% of UV rays, preserving natural colors while lowering light intensity for a realistic view. Tea-colored (brown) lenses block UV and filter blue light, enhancing contrast and clarity, which makes them ideal for foggy environments and driving.
Why are regular photochromic lenses not recommended for driving?
Regular photochromic lenses rely on direct UV exposure to change color. Because car windshields block most UV light, the lenses will not darken inside the car. Full-time drivers are advised to use polarized sunglasses instead.
What are the benefits of the spin coating process for photochromic lenses?
The spin coating process applies the discoloration dye at high speed directly onto the lens surface. This advanced technology ensures strong adhesion, high durability, and a completely uniform and stable color change across the entire lens surface, regardless of the prescription strength.