High-Quality Photochromic Gray Optical Lenses with Green Coating from China Suppliers and Factory
Product Video
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: 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.
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.
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
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.
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
Who are photochromic gray lenses best suited for?
Photochromic gray lenses are ideal for individuals who frequently transition between indoors and outdoors, such as outdoor workers, hikers, traffic police, and sanitation workers. They are also recommended for post-cataract surgery patients to protect sensitive eyes.
Why are standard photochromic lenses not recommended for driving?
Standard photochromic lenses require direct UV exposure to darken. Because car windshields block most UV rays, these lenses will not change color effectively inside the vehicle. For driving, polarized sunglasses are generally recommended.
What is the difference between gray and tea-colored photochromic lenses?
Gray lenses block 98% of UV rays and reduce overall brightness without altering natural color perception. Tea-colored (brown) lenses filter out blue light, which enhances contrast and visual clarity, making them excellent for foggy conditions and general driving.
What is spin coating technology in photochromic lenses?
Spin coating is an advanced manufacturing process where the light-reactive dye is applied at high speeds directly onto the lens surface. This technique ensures a highly uniform, durable, and stable color-changing layer across the entire lens surface regardless of the prescription strength.
What are the benefits of UV420 photochromic gray lenses?
UV420 lenses provide 100% protection against harmful UV rays, reduce eye fatigue caused by harsh sunlight, restore high-accuracy visual details, and feature an anti-reflective coating for enhanced transparency and durability.