1.50 1.49 flat top bifocal hmc optical lens
Bifocal Lens
With a segment in the lower area of the lens, a bifocal lens displays two different dioptric powers, which provides presbyopes with clear vision for both near and distance visions.
Quick Details
| Place of Origin: CN;JIA | Brand Name:Hongchen |
| Model Number: 1.49 | Lenses Material:Resin |
| Vision Effect: Bifocal | Coating:HMC |
| Lenses Color: Clear | Index:1.49 |
| Diameter: 70/28mm | Material:CR39 |
| RX lens: available | Normal Power:+3.00~-3.00 ADD:+1.00~+3.00 |
| Product Name: 1.49 bifocal eye glasses | Coating Color:Green. Blue |
| Function: Reading Glasses Opthalmic | Photochromic:Gray/Brown |
Flat Top optical lens
A flat top bifocal lens is offers correction for both near and far distances. It is a multifocal lens commonly prescribed for those suffering from both presbyopia and hypermetropia, a condition whereby, with age, the eye exhibits a progressively diminished ability to focus on near and far objects. The flat top lens includes a segment at the lower half of the lens with a prescription for reading (near distance). The width of the flat top 28 bifocal is 28mm wide at the top of the bifocal and looks like the Letter D turned 90 degrees.
The advantage of the FT bifocal lens
1.49 Flat top Finished.
2) This is a D segment bifocal lens. It has the benefit that the optical centre of the near vision part of the lens i.e. the part of the reading area which gives the very best vision, is situated at the top of the reading portion.
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
Packaging & Delivery
Delivery & Packing
Envelops(For choice):
1) standard white envelops
2) Our brand "Hongchen" envelops
3) OEM envelops with customer's Logo
Cartons: standard cartons:50CM*45CM*33CM(Every carton can include aroud 500 pairs ~600 pairs finished lens, 220pairs semi-finished lens. 22KG/CARTON,0.074CBM)
Nearest shipping Port : Shanghai port
Delivery Time :
|
Quantity(Pairs) |
1 - 1000 |
>5000 |
>20000 |
|
Est. Time(days) |
1~7 days |
10~20days |
20~40 days |
If you have any special requirements, can contact with our sales people, we can do all series service similar as our Domestic brand.
SHIPPING&PACKAGE
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