1.49 SF Semi Finished Round top bifocal UC/HC/HMC Optical Lens
What Products can we Produce?
Index: 1.499, 1.56,1.60, 1.67, 1.71，1.74, 1.76，1.59 PC Polycarbonate
1.Single Vision Lenses
2. Bifocal/Progressive lenses
3. Photochromic Lenses
4. Blue Cut Lenses
5. Sunglasses/Polarized lenses
6. Rx lenses for single vision, bifocal, freeform progressive
AR treatment: Anti-fog, Anti-Glare, Anti-virus, IR, AR coating color.
Products Description
| Place of Origin:CN;JIA | Brand Name:CONVOX |
| Model Number:1.49 | Lenses Material:Resin |
| Vision Effect:Round Top Bifocal | Coating:UC/HC/HMC |
| Lenses Color:Clear | Diameter:70mm |
| Index:1.49 | Material:CR-39 |
| BASE:2.00~10.00 ADD:+1.00~+3.00 | MOQ:200Pair |
| Product Name:1.49 SF ROUND TOP LENS | More Choice:Can Do Blue Cut or PhotoGrey |
| Package:White Box | Samples Time:1-3 Days |
Production Flow Chart
Detailed Images
Semi Finished Lenses
Semi-finished lens is the raw blank used to produce the most individualized RX lens according to thepatient's prescription. Different prescription powers request for different semi-finished lens types or base curves.
The semi-finished lenses are produced in a casting process. Here, liquid monomers are first poured into moulds. Various substances are added to the monomers, e.g. initiators and UV absorbers. The initiator triggers a chemical reaction that leads to hardening or "curing" of the lens, while the UV absorber increases the UV absorption of the lenses and prevents yellowing.
Description
As people age, they may find that their eyes are not adjusting to distances as they used to. When people inch closer to forty, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals.
Bifocal (also can be called Multifocal) eyeglass lenses contain two or more lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age.
The lower half of a bifocal lens contains the near segment for reading and other close-up tasks. The rest of the lens is usually a distance correction, but sometimes has no correction at all in it, if you have good distance vision.
When people inch closer to forty, they may find that their eyes are not adjusting to distances as they used to, the lens of the eyes begin to lose flexibility. It becomes difficult to focus on close objects. This condition is called presbyopia. It can be managed to a large extent with the use of bifocals.
Product Feature
How bifocal lens work
Bifocal lenses are perfect for people suffering from presbyopia- a condition in which a person experiences blurred or distorted near vision while reading a book. To correct this problem of distant and near vision, bifocal lenses are used. They feature two distinct areas of vision correction, differentiated by a line across the lenses. The top area of the lens is used for seeing distant objects while the bottom part corrects the near-vision
1. One lens with two points of focus, don't need change glasses when looking far and near.
2. HC / HC Tintable / HMC / Photochromic / Blue Block/ Photochromic Blue Block all available.
3. Tintable to various fashionable colors.
4. Customized service, prescription power available.
Product packaging
- Packaging Details
1.56 hmc lens packing:
envelops packing (For choice):
1)standard white envelops
2)OEM with customer's LOGO, have MOQ requirement
cartons: standard cartons:50CM*45CM*33CM(Every carton can include around 500 pairs lens,21KG/CARTON)
Port：SHANGHAI
Shipping & Package
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