CR39 1.499 Single Vision HC Semi Finished Lens Blanks With Anti
Scratch
I. Technical Data:
| CR39 1.499 Semi Finished Lens |
| Material: 1.499 Index Resin(Ne=1.50, Abbe value=57, Specific
gravity=1.33 ) |
Diameter (mm) | Nominal
Curve | Front Radius | T.C | Back
Radius | BACK
T.C | CT/ET | Frong sag
Ring (50mm) | RX Range
Recommended |
| ɸ70 | 100B | 1921.45 | 0.28 | 87.43 | 6.06 | 8.3/15.5 | 0.16 | -7.25Dto-10.00D |
| ɸ70 | 200B | 265.36 | 2.00 | 102.68 | 5.16 | 8.3/12.0 | 1.18 | -5.25Dto-7.00D |
| ɸ70 | 400B | 130.23 | 4.07 | 102.68 | 5.16 | 9.7/11.0 | 2.42 | +2.00Dto-5.00 |
| ɸ70 | 500B | 105.56 | 5.02 | 139.54 | 3.80 | 8.0/6.5 | 3.00 | +3.00Dto-3.00 |
| ɸ70 | 600B | 87.37 | 6.07 | 139.54 | 3.80 | 10.2/7.8 | 3.65 | 0.00Dto+4.00D |
| ɸ70 | 700B | 76.02 | 6.97 | 139.54 | 3.80 | 10.0/6.0 | 4.23 | +2.00Dto+5.00D |
| ɸ70 | 800B | 64.79 | 8.18 | 90.92 | 5.83 | 9.5/6.8 | 5.02 | +4.25Dto+6.00D |
| ɸ70 | 900B | 57.12 | 9.28 | 87.25 | 6.07 | 10.7/6.0 | 5.76 | +6.25Dto+8.00D |
| ɸ70 | 1000B | 51.74 | 10.24 | 87.25 | 6.07 | 13.5/7.2 | 6.44 | +8.25Dto+10.00D |
| ɸ70 | 1200B | 43.38 | 12.22 | 87.25 | 6.07 | 15.0/5.0 | 7.93 | +10.00Dto+12.00D |
II. Semi Finished Lens:
What's semi-finished lens for?
The semi-finished lens is based on the patient's prescription to
create the most personalized RX lens of the original blank.
Different prescription power in the requirement of different
semi-finished lens type or base curve.
What's the importance of a good semi-finished lens to RX
production?
a. High qualified rate in power accuracy and stability
b. High qualified rate in cosmetics quality
c. High optical features
d. Good tinting effects and hard-coating/AR coating results
e. Realize the maximum production capacity
f. Punctual delivery
Not just superficial quality, semi-finished lenses are more focus
on the internal quality, such as precise and stable parameters,
especially for the popular freeform lens.
III. CR39 Features:
1). The highest impact resistance among other index lenses
2). The most easily tinted than other index lenses, such as 1.56,
1.61, 1.67, 1.74 and 1.59 pc.
3). The highest transmittance as compared with middle index lenses
and high index lenses.
4). The highest ABBE value(57) providing the most comfortable
visual experience than other index lenses.
5). The most reliable and consistent lens product physically and
optically.
IV. Hard Coating:
 | Hard Coating is also named anti-scratch coating, can protect
uncoated lenses from impact and scratch resistance. |
V. Production Process:
VI. Packing & Shipping:
| Envelop | Choice 1 | Choice 2 |
| White envelop | color envelop with customer design weight: 157g size: 9*9*9cm |
| Outer box | standard export paper carton 38cm*48cm*35cm(0.064 CBMS) |
| about 500 pairs of finished lenses per carton, 21kgs | about 100 pairs of semi-finished lensesper carton, 15kgs |
| Lead time | Depend on the quantity |
| Carrier | We can choose for you or offer us your cooperative company |
| Payment terms | 30% T/T in advance, the balance before shippment |
VII. FAQ:
1. Are your company a manufacturer or a trade company?
We are a manufacturer with many years exporting experience. Our
factory is located in Jiangsu province.
2. How can I get sample from you?
Just send us your requirements, then we will send samples
accordingly.
3. Can your products be customized?
We accept OEM &ODM orders. Actually most of our products are
customized. We will try our best to fulfill your requirements about
the material, the size, the printing.
4. How many days will samples be finished? How about mass products?
Generally, we need 5-7 days to finish the sample production.
As for the mass products, it depends on your order quantity.
5. Do you have stock products to sell?
Yes.We have a lot of inventory.
