0102030405
1.499 Index Lenses Round Top Eyeglass Lenses 28 Segment
Packaging & Delivery
| Selling Units | Pairs |
| Single package size | 50X45X45 cm |
| Single gross weight | About 22kgs |
| Package Type |
Inner: envelops;Outer: Carton; export standard or upon your design |
| Lead Time | Quantity(Pairs) 1 - 1000prs, 10days |
| Quantity(Pairs) > 5000prs, To be negotiated |
1.499 Index Lenses Round Top Eyeglass Lenses 28 Segment
| Refractive Index |
Corridor Length |
Coating |
Abbe Value |
| 1.499 |
D28mm |
UC,HC, HMC |
57 |
|
Specific Gravity |
Transmission |
Monomer |
Power Range |
|
1.32 |
> 97% |
CR39 |
SPH: 0.00~+-3.00
ADD: +1.00~+3.00
|
Features
1) This is a very convenient type of lens that allows the wearer to focus on objects both at close range and far range through a single lens. -top" (FT) or "straight-top" (ST) bifocals.
2)This type of lens is designed to enable viewing of objects in the distance, at close range and in the intermediate distance with corresponding changes in power for each distance.
The Advantages Of Round Top Lenses
The wearers can see the near things by the round shape and see the distance things by the rest of the lenses.
The wearers don't need change two different visions glasses when they both reading book and watching TV.
The wearers can keep the same posture when they look both the near thing or far thing.
AR Coating
--HC(hard coating): To protect the uncoated lenses from scratch resistance
--HMC(hard multi coated/AR coating): To protect the lens effectively from reflection, enhance functional and charity of your vision
--SHMC(super hydrophobic coating): To make the lens waterproof, antistatic, anti slip and oil resistance.