White CR39 1.499 Single Vision Semi Finished Lens Blanks With Uncoated Optical Lenses

I. Specifications:

II. Semi Finished lens:

1. The definition and production of semi-finished lenses

Semi-finished lens is the raw blank used to produce the most individualized RX lens according to thepatient's prescription. Different prescription powers request for different semi-finished lens types or base curves.

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.

2. Minus and plus semi-finished lenses

Lenses with different dioptric powers can be made from one semi-finished lens. The curvature of the front and back surfaces indicates whether the lens will have a plus or minus power.

Semi-finished lens is the raw blank used to produce the most individualized RX lens according to the patient's prescription. Different prescription powers request for different semi-finished lens types or base curves.

III. 1.499 CR39 UC:

Aogang CR-39 lenses use the true value of imported CR-39 monomer, the longest history of resin material and the most widely sold lens in middle level country. This determines that Aogang CR-39 lenses have the most outstanding optical features:

----Hardness: The best among other index lenses in hardness and toughness, high impact resistance.

----Tintable: The most easily tinted than other index lenses.

----Transmittance: The highest transmittance as compared with other index lenses.

----ABBE: The highest ABBE value providing the most comfortable visual experience.

----Consistency: The most reliable and consistent lens product physically and optically.

IV. Company pictures:

V. Packing & Shipping

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) Shipping 1. Samples: a) Delivery time: 3-7 days (by Fedex, DHL, UPS, TNT etc.) b) Sample is free, but according 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

VI. FAQ:

1. Q: Are your company a manufacturer or a trade company?
A: We are a manufacturer with many years exporting experience. Our factory is located in Jiangsu province.

2. Q: How can I get sample from you ?
A: Just send us your requirements , then we will send samples accordingly .

3. Q: Can your products be customized?
A: 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. Q: How many days will samples be finished? How about mass products?
A: Generally, we need 5-7 days to finish the sample production.
As for the mass products, it depends on your order quantity.

5. Q: Do you have stock products to sell?
A: Yes.We have a lot of inventory .

Jiangsu Aogang Optical Glasses Co., Ltd is one of leading professional opthalmic lenses manufacturers in China, it's a technical factory specializes in producing optical lenses since 1996, our plant covers an areas of 12,000 squares meters and our daily output raised to 40,000pieces. The company has been approved according to ISO9001 atandard, also our products have been registered with CE and FDA.

With 20 years of experience in vision field, our lenses enjoy high reputation in overseas markets, we improve the crafts continuously to control the quality. Science and technology has always been certified for the workship. Our lenses cover a wide variety, including single vision, bifocal lenses, photochromic lenses, progressive lenses, finished lenses, semi-finished lenses, normal power and rx power.

We have our own laboratory, our professional technique team include 25 engineers with their teams, providing customers with individualized service.