1.56 Photochromic Round Top HMC Semi Finished Lens Blanks For Bifocal Vision
I. Technical Data:
| 1.56 Semi Finished Photochromic Round Top Lens(Brown/Gray) |
| Material: 1.56 Index Resin(Ne=1.56, Abbe=43, Specific Gravity=1.14) Segment Placement=5mm down~5mm Add Power: +1.00 to +3.50 in 0.25D steps Segment Size=28mm |  |
| CONVEX SURFACE | CONCAVE SURFACE | | | |
| Mominal Curve | True Curve | Sag (sagitta: 40mm) | Radius | Radius | CT(mm) | ET(mm) | Dia(mm) |
| 1.549 | |
| 2.00 | | | | | | | | 70 |
| 4.00 | 4.17 | | 1.50 | 131.74 | 132.50 | 8.0 | 8.0 |
| 6.00 | 6.35 | | 2.30 | 86.45 | 88.80 | 8.0 | 7.0 |
| 8.00 | | | | | | | |
II. Photochromic Round Top lens:
RT-28 Photochromic lenses are clear indoors and transition to dark reading sunglasses within 28 seconds outdoors. Designed for multi-purpose, they allow you to see as you would normally in the distance and yet you simply lower your eyes to read. Indoors you can read a book and won’t have to take them off to see your friend across the room. Outdoors they protect your eyes from U.V. and bright light while allowing you to read and enjoy the view simultaneously. One pair to wear for everywhere and for every activity: at work or home, inside or outside, see far and see up close.
----Why Go For Photochromic RT-28 Bifocal Lenses?
If you choose photochromic bifocal lenses -
- You do not have to carry along with you, a separate pair of eyeglasses with bifocal lenses
- You can easily read a book when indoors and do not need to take them off when stepping out
- When you are under the sun, they protect your eyes from bright light and UV rays, allowing you to read and view clearly at the same time
Generally speaking, if you wear prescription eyeglasses, it is a good idea to opt for photochromic bifocal or photochromic progressive lenses. Because they not only shield your eyes from the harmful rays of the sun but also provide you with a seamless and comfortable vision for different areas.
III. AR coating:
 | - 1.Hard coating(HC): Enhancing the hardness of the lens to prevent the substrate scratch
- Hard multi coating(HMC/ AR): Protecting the lens effectively from reflection, enhancing functional and charity of your vision
- Super hydrophobic coating(Crizal coating/ SHMC):Making the lens waterproof, antistatic, anti slip and oil resistance
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IV. Packing&Shipping:
| Envelop | Outer box |
| Choice 1 | Choice 2 | Finished lens | Semi-finished lens |
| White envelop | 1) color envelop with custome design 2) weight : 157g size : 9*9*9cm | about 500 pairsper carton, 21kgs | about 100 pairs per carton, 15kgs |
| standard export paper carton 38cm*48cm*35cm ( 0.064 CBMS ) |
| Lead time | Carrier |
| Depend on the quantity | All the numbers provided above are estimated number,the actual numbers need to be measured according to the order you make |
V. Our factory:
VI. Why choose us:
1. About Us:
Jiangsu Aogang Optical Glasses Co.,Ltd is a professional optical lens manufacturer for more than 10 years in China. All lenses are exported to European countries, Japan, Korea, North and South America, Middle East, Southeast Asia and Africa market. We guarantee the quality to all buyers all over the world, and got a high reputation about quality from buyers in the past 8 years exporting time. Our producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process. In Aogang Optical, you can find high quanlity lenses with the most competitive prices.
2. About Samples:
Just send us your requirements, then we will send samples accordingly. We only need 1~2 days to finish the sample production. Samples are free, but according to our company rule, our customers need to assume the shipping cost.
Product Tags:
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1.56 Photochromic Bifocal Transition Lenses Blank , Semi Finished Round Top Bifocal Lens Images
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