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Factory Cheap Hot 1.56 photochromic lenses blue block - Polycarbonate – Universe Optical Detail:
Polycarbonate
Parameters
| Reflective Index |
1.591 |
| Abbe Value |
31 |
| UV Protection |
400 |
| Available |
Finished, Semi-finished |
| Designs |
Single Vision, Bifocal, Progressive |
| Coating |
Tintable HC, Non tintable HC; HMC, HMC+EMI, Super Hydrophobic |
Power Range
|
Polycarbonate |
Other Materials
|
| MR-8 |
MR-7
|
MR-174
|
Acrylic |
Mid-Index |
CR39 |
Glass |
| Index |
1.59
|
1.61 |
1.67 |
1.74 |
1.61 |
1.55 |
1.50 |
1.52 |
| Abbe Value |
31 |
42
|
32 |
33
|
32
|
34-36 |
58 |
59 |
| Impact Resistance |
Excellent |
Excellent |
Good |
Good |
Average |
Average |
Good |
Bad |
| FDA/Drop-ball Test |
Yes
|
Yes |
No |
No
|
No |
No |
No |
No |
| Drilling for Rimless Frames |
Excellent |
Good |
Good |
Good |
Average |
Average |
Good |
Good |
| Specific Gravity |
1.22
|
1.3 |
1.35 |
1.46 |
1.3 |
1.20-1.34 |
1.32 |
2.54 |
| Heat Resistance(ºC) |
142-148 |
118 |
85 |
78
|
88-89 |
—
|
84 |
>450 |
Benefits

• Break resistant and high-impact
• Good choice to those who love sports
• Good choice to those who do a lot of outdoor activities
• Block harmful UV lights and solar rays

• Suitable for all kinds of frames, especially rimless and half-rim frames
• Light and thin edge contribute to aesthetical appeal

• Suitable to all groups, especially the children and sportsmen
• Thin thickness, light weight, light burden to children’s nose bridge
• High impact material is safer to the energetic children
• Perfect protection to the eyes
• Prolonged product lifespan
Product detail pictures:
Related Product Guide:
To regularly increase the management program by virtue from the rule of "sincerely, good religion and high quality are the base of enterprise development", we greatly absorb the essence of linked products internationally, and constantly produce new goods to satisfy the calls for of shoppers for Factory Cheap Hot 1.56 photochromic lenses blue block - Polycarbonate – Universe Optical , The product will supply to all over the world, such as: Danish, Johannesburg, venezuela, You can do one-stop shopping here. And customized orders are acceptable. Real business is to get win-win situation, if possible, we would like to provide more support for customers. Welcome all nice buyers communicate details of products and ideas with us!!