China Simi-Finished 1.56 UV420 Blue Cut Hmc Optical Eyeglass Blue Cut Lens for Reading Glasses

• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Nk55, Imported From Japan
• Coating: Hc,Hmc,Shmc,Green,Blue
• Abbe Value: 40
• Specific Gravity: 1.28
• Power Range: Sph:-20.00~+11.00 Cyl:0:00~-6.00
• Model NO.: simi-finished 1.56 UV420 blue cut HMC
• Diameter: 70/75mm
• Guarantee: 3~5 Years
• Keywords: Sf 1.56 Blue Light Blocking Lens

Product Description

SEMI-FINISHED 1.56 BLUE CUT HMC

MATERIAL REFRACTIVE INDEX = 1.56                       TOOLING INDEX = 1.530
Nominal curve	T.C	Sag	Rad	Back Curve	Diameter	C.T	E/T	RX Range Recommended
0.5	0.56	0.202	990.2	5.25	75	8	13.5	(-400~-2000)/-600
2	2.12	0.76	263.567	5.25	75	7.5	11.5	(-200~-325)/-600
3	3.21	1.15	174.488	5.25	75	7	9.5	(-000~-200)/-600
4	4.26	1.53	131.483	5.25	75	8	9.4	(+000~+300)/-600
5	5.27	1.9	106.213	5.25	75	8.5	8.5	(+300~+400)/-600
6	6.38	2.31	87.135	3.5	75	10.25	6.5	(+400~+500)/-600
8	8.76	3.21	63.91	3.5	75	13.5	7.5	(+500~+800)/-600
10	11.5	4.35	48.152	3.25	75	20	9	(+900~+1150)/-600

Details


Harmful Effects of High Energy Blue Light

1. Disrupts the Circadian Rhythm

2. Higher risk of certain types of cancer

3. Higher risk of Diabetes, Heart Disease & Obesity

4. Aggravates Depression

5. May induce Myopia

Why we need the blue cut lens?


Coating Choices:


About Our Factory

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.