Basic Info.
Model NO.
1.74 Aspheric UV400 SHMC
Keywords
1.74 Aspheric UV400 Shmc
Glasses Lens
Available
Ophtalmic Instrument
Available
Brand
Seesen
Product Description
Excellent optical materials with high refractive index, high Abbe number, low specific gravity and high impact resistance are provided by polymerizing monomers of MR-174.
MR-174 is especially suitable for ophthalmic lenses and is known as the first thiourethane based high index lens material.
MR-174 offers a variety of products to provide the best solution for optical lens users.
MR-174
 | Designed for high prescriptions, these lenses are extremely thin and light, delivering tremendous optical quality due to an aspheric design. |
1.74 Hi-index Single Vision
| Product Name | 1.74 High Index Lens Super Hydrophobic Optical Lens Eyeglasses Lenses |
| Diameter | 75MM |
| Monomer | MR-174 |
| Abbe value | 33 |
| Specific Gravity | 1.47 |
| Power Range | SPH:0.00~ -20.00 0.00~+16.00 CYL: 0.00~ -6.00 |
1.74 Features
Aspheric lenses are also sometimes used for eyeglasses. Aspheric eyeglass lenses allow for crisper vision than standard "best form" lenses, mostly when looking in other directions than the lens optical center.
Super hydrophobic will keep lenses cleaner longer because of the added benefit of anti-fog and anti-static additives.
UV400 Protection
UV400 means one hundred percent anti-ultraviolet.
UV is the wavelength of 200nm ~ 380nm from the sun light, including three categories: UVA wavelength of 315nm ~ 380nm, UVB wavelength of 280nm ~ 315nm, UVC wavelength of 200nm ~ 280nm.
UV-400: Optical lens with "UV-400" can block all the UV, can be 100% reflection, absorption of ultraviolet light.
Comparison of physical properties of lenses
| MR-8 | MR-7 | MR-174 | Polycarbonate(PC) | NK-55 | CR39 | |
| Referactive Index | 1.61 | 1.67 | 1.74 | 1.59 | 1.56 | 1.49 |
| Abbe Value | 41 | 32 | 33 | 32 | 37.5 | 58 |
| Specific Gravity | 1.30 | 1.35 | 1.47 | 1.20 | 1.28 | 1.32 |
| Diameter | 65/70/75 | 65/70/75 | 65/70/75 | 65/70/75 | 55/60/65/72 | 55/60/65/70 |
| Impact Resistance | Good | Good | Good | Good | Good | Good |
| Static Load Resistance | Good | Good | Good | Good | Good | Good |
About the Coating
About Our Factory
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.