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China UV420 Blue Block Lenses - Single Vision Eyewear from Leading Suppliers and Factory for Eye Protection
Product Parameters
| Product | JINRUISHI Blue Block UV 420 Single Vision Lenses |
| Index | 1.56 / 1.61 / 1.67 |
| Diameter | 65 / 70 / 72 / 75 / 80 mm |
| Power Range | Full Range |
| Coating | UC / HC / HMC / SHMC |
Product Introduction
The features of JINRUISHI Optical UV420 blue light blocking lenses include:
Blue Light Filtering
Effectively blocks high-energy shortwave blue light, reducing potential harm to the retina and eye fatigue.
Glare Reduction
Reduces glare from digital screens, providing comfortable vision and alleviating digital eye strain.
Enhanced Durability
Anti-reflective and scratch-resistant coatings minimize reflections and extend lens lifespan.
Improved Sleep Quality
Reduces interference with melatonin production caused by night-time blue light exposure.
Product Application
Blue light blocking lenses are ideal for everyday use, especially for those who spend long hours on digital screens, such as office workers, students, programmers, and gamers. They also benefit nighttime drivers and people frequently exposed to LED lighting by reducing blue light’s impact in low-light conditions.
Customization & Standards: JINRUISHI Optical offers a range of blue light blocking lenses that meet national and international standards. Available refractive indexes include 1.56, 1.61, and 1.67. Lenses can be customized with various coatings (UC/HC/HMC/SHMC) to meet specific customer requirements.
Frequently Asked Questions
What is the benefit of UV420 blue block lenses?
UV420 lenses provide comprehensive protection by blocking both harmful UV rays and high-energy visible (HEV) blue light up to 420nm, which helps prevent long-term retinal damage.
Which refractive index should I choose?
We offer 1.56 (standard), 1.61 (thin), and 1.67 (ultra-thin). Generally, higher prescriptions benefit from higher indexes (1.61 or 1.67) for thinner and lighter lenses.
Are these lenses suitable for all-day wear?
Yes, JINRUISHI blue block lenses are designed for everyday use, providing visual comfort whether you are using digital devices or performing outdoor activities.
How do these lenses help with digital eye strain?
By filtering out the harsh blue light emitted by smartphones and computers, these lenses reduce screen glare and help the eyes relax during extended screen time.
What coatings are available for these lenses?
We provide several options including Uncoated (UC), Hard Coated (HC), Hard Multi-Coated (HMC), and Super Hydrophobic Hard Multi-Coated (SHMC) for superior smudge resistance.
Can these lenses improve my sleep?
Yes, by reducing blue light exposure in the evening, these lenses help maintain your natural circadian rhythm and melatonin production, leading to better sleep quality.





