Function: | for Presbyopic, for Astigmia, for Myopia |
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Age Group: | Adults |
Gender: | Unisex |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
1.Description | 1.49 CR39 Flat Top HMC Lenses |
2.Material | Resin |
3.Abbe Value | 58 |
4.Transmittance | 98%-99% |
5.Specific Gravity | 1.32 |
6.Diameter | 70mm |
7.Coating | UC, HC,HMC,SHMC |
8.Coating Color | Green,Blue |
Q1: Are you a factory?
A: Yes, we are a manufacturer of optical lenses located in Heyang town Danyang city.
Q2: How about your optical lens production ability per day?
A: About 10000 pairs / day.
Q3: How is your quality?
A: We have a very seriously control system (ERP system). We guarantee the high performance of every piece of our lenses.
Q4: How do you control lens quality?
A: Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out uncoated optical lens. Each piece of lenses must go through triple inspection by experienced workers, such as UC lens inspection, HC lens inspection, and HMC lens inspection.
Q5: How to check the durability of optical lens coating?
A: After AR coating, we carry out salt water boiling experiment for our optical lens.
Experiment 1: we put 4 pieces lens into 5% salt boling water for 15 minutes, then, check, if no coating layers drop from lens, or no coating layers crack appear, the quality is OK.
Experiment 2: Putting lens in 5% boliling salt water for 2 minutes, cold water 1 minutes, boil and cold water times, no coating layers crack, drop, then ok.
Q6: When will I get the reply from seller?
A:Within 24 hours due to the time difference. We will reply you as soon as possible.
Q7: Could you provide free samples for customers checking the quality before they place the order?
A: Yes, of course. For those customers who are really interested in our products, if the quantity is reasonable, we would be very glad to provide our samples after get the detailed instructions from the customer.
Suppliers with verified business licenses