HELLO , I AM A LENS. WHAT CAN I DO FOR YOU?
Semi-finished lens is the raw blank used to produce the most individualized RX lens according to the patient's prescription.
HOW IS MY PERFORMANCE?
1.499 S/F EXTRA THICKNESS Single Vision Lens |
Material refractive index=1.499 |
|
|
|
|
|
|
|
|
|
Diameter
(mm) |
Nominal |
TRUE BASE
(Nd=1.530) |
Radius
(mm) |
SAG AT 50
(mm) |
THICKNESS
(mm) |
FRONT |
FRONT |
BACK |
FRONT |
BACK |
FRONT |
BACK |
CENTER |
EDGE |
70mm |
Plano |
0.00 |
5.70 |
26500.00 |
92.98 |
0.01 |
3.42 |
13.30 |
20.00 |
70mm |
200 |
2.13 |
5.70 |
248.83 |
92.98 |
1.26 |
3.42 |
15.50 |
20.00 |
70mm |
400 |
3.68 |
5.70 |
144.02 |
92.98 |
2.19 |
3.42 |
16.50 |
19.50 |
70mm |
600 |
5.90 |
5.70 |
89.83 |
92.98 |
3.55 |
3.42 |
15.50 |
15.00 |
70mm |
800 |
7.95 |
5.70 |
66.67 |
92.98 |
4.87 |
3.42 |
14.00 |
11.00 |
70mm |
1000 |
10.05 |
5.70 |
52.74 |
92.98 |
6.30 |
3.42 |
17.00 |
11.00 |
WHERE AM I FROM?
WHERE AM I GOING? IT'S UP TO YOU.
Q1: Is your company a trading company or a factory?
A: We are professional optical lens factory.Our company was established in 1998 with covering 24400 spm and 280 employees.
Q2: What is the time of shipment?
A: It is depended on the order quantity and requirement. Normally, it will take one week for sample lenses , and will take 1 month for bulk lenses.
Q3: How do you control the lens quality?
A: We have 4 Quality Checking step to control quality. Uncoated, Hard Coating, AR coating, every production step we have professional quality checking. Before shipment we have extra quality control.
Q4: Could you provide samples for customers checking the quality before they place the order?
A: Yes, of course. when you make the regular order we will return your samples cost. Detail can contact with our sales.
Q5: What are your payment terms?
A: Our payment term is 30% deposit before production and balance payment before the shipment. You can pay by T/T, L/C, Alipay, Western Union ,Paypal and Etc.
Q6: Can you use customized envelope for me?
A:Yes, we can design your brand envelope Free envelops order MOQ:5000 pairs. If less than 5000 pairs, you also can pay the cost 200$ for one design with 5000pairs envelops. Also we have better quality or special requirement for envelops with charge.