● The Ultimate Convenience: Glasses & Sunglasses in One
The "Photogrey" lens material is reactive to ultraviolet (UV) light. It automatically darkens when you go outside and clears up when you return indoors. Eliminates the need to carry a separate pair of prescription sunglasses, making it incredibly convenient for everyday activities.

● High Light Transmission for Great Vision​
Even though they can filter light, 1.56 photogrey blue coating lenses still let a lot of light through. When they’re clear indoors, the amount of light they let through can be as high as 96% to 98%. This makes sure enough light passes through the lens, so you can see your surroundings brightly and clearly. The blue coating on the lenses doesn’t just help with the photochromic function; it also reduces reflections. The anti-reflection feature of the blue coating works really well to cut down on glare from both natural and artificial light sources. Whether you’re reading, working on a computer, or driving, these lenses give you sharp vision without distortion, making contrasts better and letting you see colors accurately.

● Ultra-Fast Light Adaptation​
1.56 photogrey (fast change) airblue coating SHMC lenses are equipped with advanced photochromic technology that enables them to adapt to light changes at an astonishing speed. In contrast to regular photochromic lenses that might take tens of seconds to fully darken, these lenses can start darkening within just 5 - 10 seconds when exposed to strong sunlight. They reach their maximum tint in approximately 30 seconds. This rapid response ensures that your eyes are immediately shielded from the intense glare of the sun, effectively reducing discomfort, squinting, and the risk of developing eye fatigue from excessive bright light exposure. When moving indoors or to a shaded area, they fade back to a clear state in around 1 - 2 minutes. Such a quick transition between different lighting conditions makes them highly convenient for daily use, whether you're commuting, engaging in outdoor activities, or simply moving between indoor and outdoor spaces throughout the day.

● Ultimate Durability & Easy Maintenance
Super Hydrophobic: The top layer repels water. Raindrops or splashes bead up and roll off the lens. It also repels oils, grease, and fingerprints. This makes the lenses much easier to keep clean.SHMC includes a hardened layer that protects the lenses from everyday scratches, significantly extending their lifespan.
Easy-to-Clean Surface: The combination of hydrophobic and oleophobic properties means dust, dirt, and smudges have a hard time sticking, and when they do, they wipe off effortlessly.

● Fast Change + Air Blue Coating: You get quick-adjusting sun protection plus enhanced visual clarity and blue light filtering for digital life.Air Blue Coating + SHMC: The superior anti-reflective properties of the Air Blue coating are protected and maintained by the durable, easy-to-clean SHMC top layer. This ensures your vision remains crystal clear for years.

● Adaptive Light Adjustment​
1.56 progressive photogrey green coating lenses feature advanced photochromic technology. In bright sunlight, they can start. This response effectively shields your eyes from intense sunlight and reduces glare, ensuring comfortable vision outdoors. When moving indoors or to a shaded area, they fade back to a clear state. This seamless transition between different lighting conditions eliminates the need to carry separate pairs of regular and sunglasses, providing great convenience for daily activities, whether it's commuting, working, or engaging in outdoor sports

● Progressive Design for Multifocal Vision
The progressive design of these lenses is a major highlight. The upper part of the lens is optimized for clear distance vision. The middle portion offers an intermediate power, which is ideal for tasks such as viewing a computer screen. The lower part is designed for near-vision, making it easy to read books and newspapers. This progressive design allows for a smooth and natural transition between different focal lengths, eliminating the "jump" in vision that is often associated with bifocal or trifocal lenses. Eliminates the need to switch between separate distance and reading glasses, providing a natural, seamless visual experience.

● Cost-Effective Option​
1.56 progressive photogrey green coating lenses present a cost-effective solution for consumers seeking multifunctional lenses.

● Blue Light Blocking
They can effectively block around 45 - 50% of high-energy blue light within the 415 - 455 nm wavelength range. This is highly beneficial for those who spend extended periods in front of digital devices such as computers, tablets, and smartphones. Prolonged exposure to blue light from these sources can lead to various issues, including eye fatigue, dryness, and disruption of the body's natural sleep-wake cycle. By reducing blue light exposure, these lenses help to alleviate digital eye strain and may contribute to better overall eye health in the long run.

● Adaptive Photochromic Function
These lenses feature advanced photochromic technology. In bright sunlight, they can start to darken remarkably fast, usually within a few seconds. They reach their maximum tint in a short time, providing immediate protection against the intense glare of the sun. When moving indoors or to a shaded area, they fade back to a clear state in a short period. This seamless transition between different lighting conditions eliminates the need to carry multiple pairs of glasses, making them extremely convenient for daily use

● SHMC Technology​
The SHMC technology further elevates the performance of these lenses. The super-hydrophobic aspect of the coating repels water, oil, and dust particles. This means that water droplets from rain or splashes, as well as greasy substances, will not easily adhere to the lens surface. As a result, the lenses stay cleaner for longer, maintaining their optical clarity. Additionally, the multifunctional nature of the SHMC coating contributes to the overall durability of the lenses.

● Spin coating is a thin film preparation technology that can realize uniform coating of materials on the substrate surface by high-speed rotation.

● The spin coating technique places the color-change film on the surface of the lens, so the color only changes on the surface of the lens.

● The color changes faster, the color is deeper, and the fading is more uniform.

● Owing to its rapid and uniform photochromic properties, spin coating helps the lens better adapt to changes in ambient light, reducing visual discrepancies and providing a more comfortable and natural visual experience.

● 1.67 Refractive Index - Lighter, Thinner & More Comfortable. High refractive index lenses can be made thinner and lighter, making them more comfortable to wear and more aesthetically pleasing. It can reduce the thickness of the edge of the lens, making the overall appearance of the glasses more fashionable.  For people with high myopia, high refractive power lenses are a good choice because they can provide sufficient correction effect while maintaining the thinness and lightness of the lens.

● Spin coating is a thin film preparation technology that can realize uniform coating of materials on the substrate surface by high-speed rotation.

● The spin coating technique places the color-change film on the surface of the lens, so the color only changes on the surface of the lens.

● The color changes faster, the color is deeper, and the fading is more uniform.

● Surface Design: Aspherical, Less Distortion & Aberration, More Comfort

● Durability: Enhanced Scratch Resistance

● UV Protection: Blocks Harmful UV Rays, Shields Eyes

● EMI Defense: Reduces Electromagnetic Radiation, Better Eye Care

● Coating: Green Coating for HD Vision & Less Eye Fatigue

● Balanced Optical Performance with 1.56 Index​
The 1.56 refractive index strikes an ideal balance between thinness and optical clarity. With an abbe value of approximately 39.5, it minimizes chromatic aberration (color distortion at lens edges), outperforming higher-index lenses that often sacrifice visual quality for slimness. Typically designed with an aspheric surface, these lenses further reduce spherical aberration, ensuring sharp, distortion-free vision for near, intermediate, and distance viewing.

● Enhanced Digital Eye Comfort (Blue Block)
Reduces Eye Strain: Filters a portion of High-Energy Visible (HEV) blue light emitted from digital screens (computers, phones, tablets), helping to alleviate symptoms of digital eye strain like headaches, dry eyes, and blurred vision.

● Crafted from high-quality resin, the lenses resist impact while the green coating adds a protective layer against daily wear. When combined with a standard hard coat, they achieve a scratch resistance, shielding against minor abrasions from dust or handling.

● More powerful to blue block harmful blue Light. Features crystal blue film coating. The particles are more precise and effectively improve the performance of filter blue light reduction. 

● The 1.56 index provides a thinner, lighter solution for low to moderate prescriptions, enhancing comfort and aesthetics. Its integrated Blue Block technology effectively filters harmful high-energy blue light from digital screens, reducing eye strain and supporting better visual comfort during prolonged device use.

● The premium Crystal Blue anti-reflective coating ensures exceptional clarity by minimizing distracting reflections and glare, particularly in low-light conditions or under bright artificial lighting. This coating also adds a durable, scratch-resistant, and easy-to-clean surface, extending lens longevity.

● The progressive design provides clear, seamless vision at all distances—near, intermediate, and far—eliminating the need to switch between separate pairs of glasses. 

● Photogrey technology, which automatically darkens the lenses outdoors, acting as adaptive prescription sunglasses that offer 100% UV protection and reduce glare in any light condition.

● Blue Block protection is built in to filter a portion of high-energy blue light from digital screens, helping to reduce digital eye strain and support visual comfort during extended device use. 

● The 1.56 index material offers an ideal balance for low to moderate prescriptions, being noticeably thinner and lighter than standard lenses for improved aesthetics and wearability.

● All-in-One Convenience
Automatically transition from clear indoors to dark outdoors, combining regular eyeglasses and sunglasses in one pair.

● Optimal Light Adaptation
Photogrey technology provides smooth adaptation to changing light conditions, reducing glare and improving visual comfort.

● Enhanced Clarity with Green Coating
Green anti-reflective coating minimizes reflections, increases light transmission, and offers sharper vision in various lighting.

● UV Protection
Built-in UV protection safeguards eye health against harmful sun rays.

● Moderate Prescription Optimization
1.56 index offers a thinner, lighter lens for low to moderate prescriptions, improving aesthetics and comfort.

● Subtle Aesthetic Appeal
Green coating provides a natural, low-contrast reflection for a stylish and discreet look.

● Dual-Function Convenience
Photogrey technology provides automatic adaptation from clear indoors to tinted outdoors, combining regular vision correction and sun protection in one pair.

● Enhanced Blue Light Protection
Blue coating adds an extra layer of filtering for high-energy visible blue light from digital screens, reducing digital eye strain. Blue coating can also reduce indoor light, screen glare, and outdoor bright glare, and reduce the blinding feeling of opposite car lights when driving at night.

● Superior Anti-Reflective Performance
Blue anti-reflective coating minimizes glare from screens and artificial lights while improving light transmission for clearer vision.

● UV Protection
Built-in UV blocking protects eyes from harmful sun radiation in both clear and darkened states.

● All-Day Comfort
A combination of photochromic adaptation and blue light filtering supports visual comfort in various lighting conditions.