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1.56 ASP High Definition Blue Cut HMC Green Coating Optical Lens - China Suppliers Factory for Lightweight Eye Protection
Product Video
Technical Data
| Product | 1.56 Blue Cut lens | Index | 1.553 |
| Material | Resin | Abbe Value | 34 |
| Diameter | 65/70 | Coating | HMC Green coating |
Performance Features
Anti-fingerprint
Waterproof
High transmittance
Wear resistance
Anti reflection
UV protection
Anti blue-light
Aspherical Lens vs Spherical Lens
There are significant differences between Aspherical lenses and spherical lenses in multiple aspects, mainly including design principles, visual quality, wearing comfort, lens appearance, and price.
Spherical lenses: Due to their design characteristics, spherical lenses will produce significant distortion at the edges, especially when the degree is high.
The lenses may appear thicker in appearance, which can cause deformation or distortion when the wearer sees objects. Wearing spherical lenses for a long time can lead to eye fatigue or discomfort.
Aspherical lenses: Significantly reduce edge distortion, allowing wearers to see objects more realistically and helping to reduce eye fatigue.
Blue Cut Technology
The hazards of blue light:
Blue light with a wavelength between 415 and 455 nanometers is short wave harmful blue light, which poses the greatest threat to the retina. It can penetrate the crystalline lens directly to the retina, causing the decline of retinal pigment epithelial cells and ultimately leading to irreversible visual impairment.
Anti-blue light lenses use special technology to filter out some harmful blue light, thereby reducing the harm of these blue lights to the eyes.
Key Technologies & Benefits:
- Coating technology: A special film is coated on the surface of the lens, which can reflect or absorb some harmful blue light, reducing damage to the eyes.
- Substrate absorption: Adding anti blue light factors to the substrate of the lens can absorb the blue light entering the lens, further reducing the impact of blue light on the eyes.
- Double protection technology: Some high-end anti blue light glasses combine coating and substrate absorption technologies to achieve more comprehensive blue light protection.
- Anti blue light lenses can filter out some blue light, reduce the intensity of blue light, reduce the stimulation of blue light to the eyes, thereby reducing fatigue and making the eyes more comfortable when watching electronic device screens.
- Blue light can inhibit the secretion of melatonin and affect sleep quality. Wearing anti blue light glasses can reduce the intake of blue light at night, help increase the secretion level of melatonin, and thus improve sleep quality.
Please Note: Anti blue light glasses cannot completely filter out all blue light, nor can they replace correct eye habits and scientific eye care. Wearing anti blue light glasses for a long time while watching electronic products may still cause eye fatigue, so it is necessary to rest your eyes appropriately and pay attention to eye hygiene.
Oil Pollution Prevention
The anti oil function of oil resistant lenses is mainly achieved through the organic hydrophobic film layer on their surface. This film layer can reduce the contact area between water and oil and the lens, making it difficult for oil and water droplets to adhere to the surface of the lens. Make the lenses easier to clean and maintain.
Frequently Asked Questions (FAQ)
What is a 1.56 Blue Cut lens?
A 1.56 Blue Cut lens is a resin optical lens with a refractive index of 1.553. It incorporates anti-blue light technology (through coating or substrate absorption) to filter out harmful short-wave blue light emitted by electronic screens, protecting the eyes from strain and potential retinal damage.
What is the difference between spherical and aspherical lenses?
Spherical lenses have a constant curvature and can cause optical distortion at the edges, especially for higher prescriptions. Aspherical lenses feature a flatter, more complex curvature that reduces edge distortion, provides more realistic vision, decreases eye fatigue, and makes the lens appear thinner and lighter.
How does the oil pollution prevention coating work?
The oil pollution prevention function is achieved via an organic hydrophobic film layer applied to the lens surface. This layer reduces the surface tension, preventing water, oil, and fingerprints from sticking to the lens, which makes cleaning and maintenance much easier.
Can anti-blue light lenses improve sleep quality?
Yes. Exposure to blue light at night suppresses the secretion of melatonin, a hormone necessary for sleep. Wearing anti-blue light glasses when using digital screens in the evening reduces blue light intake, helping maintain healthy melatonin levels and improving overall sleep quality.
What is the Abbe value of this lens and why is it important?
The Abbe value of this 1.56 lens is 34. The Abbe value measures the dispersion of the lens material (how much light is dispersed when passing through the lens). A value of 34 provides a balanced combination of refractive efficiency and visual clarity for everyday use.