Middle Index Hard Coating 1.56 Progressive Semi Finished Lens Blanks For Multifocal vision Optical Lenses
I. Technical data:
| 1.56 S/F SHORT CORRIDOR PROGRESSIVE BLANKS |
| MARTERIAL REFRACTIVE INDEX=1.56 TOOLING INDEX=1.530 |
| Diameter(mm) | Nominal
Curve | Front
Radius | T.C | Back
Radius | BACK
T.C | CT/ET | Frong sag
Ring 50mm | RX Range
Recommended |
| ɸ75 | 300B | 337.35 | 1.57 | 87.17 | 6.08 | 7.0/13.0 | 0.93 | -6.75Dto-8.00D |
| ɸ75 | 400B | 149.54 | 3.54 | 104.6 | 5.07 | 7.0/9.0 | 2.10 | +2.00Dto-4.25 |
| ɸ75 | 500B | 90.95 | 5.83 | 104.6 | 5.07 | 10.0/9.0 | 3.50 | 0.00Dto+3.50 |
| ɸ75 | 600B | 67.16 | 7.89 | 87.17 | 6.08 | 9.5/6.0 | 4.83 | -4.25Dto+6.00 |
II. Features:
1) What is the progressive lens?
There are many types of progressive lenses depending on your vision needs. This is also a great option for multifocal wearers and those with strong prescriptions. And they just happen to be the easiest progressives to get used to. Thought your prescription limited your frame selection? Progressive lenses fit in any frame just like single vision.
Don’t let multi-focal vision cramp your style. You no longer have to be caught peering over bifocals, or switching out two pairs of glasses. With progressive lenses, you can see your entire world in a crisp, clear, seamless way. One pair of eyeglasses can do it all.
Don’t let multi-focal vision cramp your style. You no longer have to be caught peering over bifocals, or switching out two pairs of glasses. With progressive lenses, you can see your entire world in a crisp, clear, seamless way. One pair of eyeglasses can do it all.
2) Why you need progressive lenses?
You may be maturing, but "mature" doesn't have to mean "old." If you are in your 40s (or older) and are having trouble reading fine print with your glasses, progressive lenses offer a younger-looking appearance and other advantages over the lined bifocal lenses your parents wore.
Progressive lenses, sometimes called "no-line bifocals," eliminate the visible lines of traditional bifocals and trifocals and hide the fact that you need reading glasses.
With progressive lenses, no one has to know whether you're wearing glasses just for fashion — or because your arms have "grown too short" for you to see up close.
III. Semi finished lens:
| The starting point for freeform production is a semi-finished lens, also known as a puck due to its resemblance to an ice hockey puck. These are produced in a casting process that is also used to manufacture stock lenses. 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. |  |
IV. Coating explaination:
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| Hard Coating: also called Anti-Scratch to make the uncoated lenses are easily subjected and exposed to scratches |
V. The process of hard coating:
VI. Packing:
1. Envelope:
a) standard white envelope
b) color envelope with customer design (Weight: 157g, Size: 9*9*9cm)
2. Outer Box
a) standard export paper carton (Size: 38*48*35cm, 0.064CBMS)
b) Include about 500 pairs of finished lens (Weight: about 21kg) or include about 100 pairs of 100 semi finished lens (Weight: about 15kg)
VII. Shipping:
1. Samples:
a) Delivery time: 3-7 days (by Fedex, DHL, UPS, TNT etc.)
b) Sample is free, but accroding to our company rule, the shipping cost need to be assumed by customers.
2. Batch Goods:
a) Delivery time: 10-30 days (depend on your quantity, by air, sea or express)
b) Carrier: We can choose for you or offer us your cooperative company
VIII. Our service:
1. Our Customer service will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment.
2. Online via SKYPE,Whatsapp;Also through mail, voice phone, message could contact us at any time!
3. Follow up the case, record the entire process. Solution will be provide with 24 hours.
Meanwhile,the problem complaint will be reported to QC department.
QC will find defect from which department ,who is in charge to identify responsibility.
4. Collect and record all the voice from each customer respond , suggestion, requirement.
5. We own the best after-sale service,if any problems happen,our team will do our best to solve for customers.
Product Tags:
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Optical Semi Finished Lens Blanks Middle Index 1.56 Hard Coating Multifocal Vision Images
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