Basic Info.
Product Description
Why Go For Photochromic Progressive Lenses?
If you choose photochromic progressive lenses
♦. Provide 100% protection from the sun's UVA and UVB rays
♦. They give you a comfortable and continuous field of vision with reduced distortion
♦. They eliminate the use of reading glasses because they have the power to correct all areas of vision
♦. Eliminate the problem of image jump
♦. Reduce the chances of eyestrain
1.56 Photochromic Progressive Lens
| Product Name | 1.56 Photochromic Progressive Lens |
| Diameter | 70, 75/12&14MM |
| Monomer | NK55 (imported from Japan) |
| Abbe value | 42 |
| Specific Gravity | 1.16 |
| Power Range | Sph:-2.00~ +3.00 ADD: +1.00~+3.00 |
| Guarantee | 3~5 year |
About the Photochromic Lens
| Indoor Protective Lens | Outdoor Protective Lens |
| In the room or at night, the lenses color are basically transparent, the same as the ordinary lenses, like high light transmission performance, relieve visual fatigue,make you see the world more clear. | Lens under the action of ultraviolet light in the sun color, ultraviolet dark color change, deep, shallow light-colored ultraviolet light, isolated from UV damage, anytime, anywhere to protect your eyes. |
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 Progressive Lens
♦. Progressive spectacle lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation.♦. The lens location of the correct addition power for the viewing distance usually only requires small adjustments to head position, because near vision tasks such as reading are usually low in the visual field and distant objects higher in the visual field.
♦. Progressive addition lenses avoid the discontinuities (image-jumps) in the visual field created by the majority of bifocal and trifocal lenses and are more cosmetically attractive.
About the Coating
About our Factory
Packing & Delivery
| Choice 1 | ||
| Envelope | Carton | Size |
| White Envelope | Stand Export Carton | 38cm*48cm*35cm |
| Choice2 | ||
| You design with your logo | ||
| Type | Lenses Pair | Weight |
| Finished lens | about 500 pairs | 20KGS |
| Semi-finished lens | about 100pairs | 15KGS |
| Lead time | Depend on the quality | |
| Depend on the quantity | We can choose for you or offer us your cooperative company | |
| All the numbers provided above are estimated number, the actual numbers need to be measured according to the order you make. | ||
FAQ:
Q. How many days will samples be finished? How about mass products?
A. Generally, we need 1~2 days to finish the sample production. As for the mass products, it depends on your order quantity.
Q. How can I get sample from you?
A. Just send us your requirements, then we will send samples accordingly.
Q. What is the MOQ of optical lens?
A. No MOQ for customer if optical lens is in stock.
Q. How do you control lens quality?
A. Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.
Q. How about your optical lens production ability per day?
A. About 20000 pairs/day.
Q. Are you a factory?
A. Yes, we are a professional optical lens manufactruer in China, and have a factory in Danyang city, Jiangsu province.
