Semi-Finished 1.56 Photochromic Flat Top Lens Photogrey FT-28 Bifocal Eyeglasses Lenses

• Customization: Available
• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Nk55, Imported From Japan
• Model NO.: SF 1.56 Photochromic FT-28 Lenses
• Abbe Value: 42
• Specific Gravity: 1.15
• Coating Choice: Hmc/Shmc
• Power Range: Sph:000~ +300 000~-200 Add:+100~+300
• Transmission: > 97%
• Diameter: 70mm
• Guarantee: 3~5 Years
• Key Word: Sf 1.56 Photogrey Flat Top Bifocal Hmc Lens
• Brand: Seesen

Product Description

SEMI-FINISHED 1.56 PHOTOCHROMIC FLAT TOP HMC LENS

MATERIAL REFRACTIVE INDEX = 1.552                     TOOLING INDEX = 1.530
Diameter	Nominal Curve	T.C	Rad	Back Curve	E.T	C.T	Sag	Seg Inset	ADD Range	RX Range Recommened
70/28mm	200	240	220.53	6.00	11.00	6.00	1.18	5	1.00-3.50	-2.00D/-5.00D
70/28mm	400	423	125.11	6.00	8.00	8.00	2.34	5	1.00-3.50	-1.00D/-3.00D
70/28mm	600	604	87.71	6.00	8.00	8.00	3.61	5	1.00-3.50	+2.00D/-2.00D
70/28mm	800	802	66.06	6.00	6.00	8.00	4.90	5	1.00-3.50	+2.00D/+5.00D

Other Products

Vision Effect	1.499	1.56	1.59 PC	1.61	1.67	1.74
Single Vision	√	√	√	√	√	√
Bifocal	√	√
Progressive/Multifoca	√	√	√
Photochromic		√	√	√	√
UV420 Blue Light Blocking		√	√	√	√	√
UV400		√		√	√	√
Blue Block Photochromic		√	√	√	√
Blue Block Progressive		√	√	√
Blue Block Photochromic Progressive		√	√
Photochromic Progressive		√
Polarized	√	√

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. 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.

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

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. How do you control lens quality?
Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.