Basic Info.
Model NO.
1.61 ASP UV400 Optical Lens
Specific Gravity
1.30
Coating Choice
Hmc/Shmc
Power Range
Sph:0.00~ -20.00 0.00~+16.00 Cyl: 0.00~ -6.00
Diameter
65/70/75mm
Transmission
> 97%
Guarantee
3~5 Years
UV Value
UV400
Key Word
1.61 UV400 Hmc Asp Lens
Trademark
Seesen
Origin
Danyang, China
Product Description
| Product Name | 1.61 ASP UV400 HMC Optical Lens |
| Diameter | 65/70/75mm |
| Monomer | MR-8 |
| Abbe value | 41 |
| Specific Gravity | 1.30 |
| Power Range | SPH:0.00~ -20.00 0.00~+16.00 CYL: 0.00~ -6.00 |
Benefits of Aspheric Lenses
- Less bulging of the lens, giving you a sleeker profile
- More frame options for individuals with strong eyeglass prescriptions or reading powers
- A more natural appearance of the eye (reduces the eye magnification that occurs with farsightedness and the smaller appearance of the eye that occurs with nearsightedness)
- Lightweight (less material is used to make the lens)
- Better peripheral vision
- Higher image quality (more consistent magnification throughout the lens)
What is UV 400?
Simply put, UV 400 means that the lenses will block Ultraviolet (UV) waves shorter than or equal to 400 nano-meters (nm). All UV waves come in different lengths as shown in the chart below.
UVA: 320-400 (nm)
UVB: 290-320 (nm)
UVC: 200-290 (nm)
Since all of these UV rays are shorter than or equal to 400 nm, they are blocked by the lenses - keeping your eyes safely protected.
This also explains why you can still see color. The color red has a wavelength of 680 nm. Since it is greater than 400 nm, it is not blocked by the UV 400 lenses.
FAQ: 1. Are your company a manufacturer or a trade company?
We are a manufacturer with many years exporting experience. Our factory is located in Jiangsu province.
2. Can your products be customized?
We accept OEM &ODM orders. Actually most of our products are customized. We will try our best to fulfill your requirements about the material, the size, the printing.
3. How can I get sample from you?
Just send us your requirements, then we will send samples accordingly.
4. How many days will samples be finished? How about mass products?
Generally, we need 5-7 days to finish the sample production.As for the mass products, it depends on your order quantity.
5. How do you control lens quality?
Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.