Eyeglasses Prescription Lenses 1.61 Aspheric UV400 Hmc High Index Aspheric Lens

• Customization: Available
• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Resin
• Model NO.: 1.61 Aspheric UV400 HMC
• Type: Aspherical Lens
• Abbe Value: 41
• Specific Gravity: 1.30
• Power Range: Sph:0.00~ -20.00 0.00~+16.00 Cyl: 0.00~ -6.00
• Diameter: 65/70/75mm
• Keywords: 1.61 UV400 Hmc Asp Lens

Product Description

What is 1.61 High-Index Lenses?

1.61 High-Index lenses bend light more efficiently and have thinner edges than lenses with the same prescription power made of conventional plastic material. They require less material, which reduces their overall weight.

1.61 ASP UV400 Optical Lenses

Product Name	1.61 ASP UV400 Optical Lenses
Diameter	65/70/75MM
Monomer	MR-8
Abbe value	41
Specific Gravity	1.30
Power Range	SPH:0.00~ -20.00 0.00~+16.00 CYL: 0.00~ -6.00

Comparison of physical properties of lenses

	MR-8	MR-7	MR-174	Polycarbonate(PC)	NK-55	CR39
Referactive Index	1.61	1.67	1.74	1.59	1.56	1.49
Abbe Value	41	32	33	32	37.5	58
Specific Gravity	1.30	1.35	1.47	1.20	1.28	1.32
Diameter	65/70/75	65/70/75	65/70/75	65/70/75	55/60/65/72	55/60/65/70
Impact Resistance	Good	Good	Good	Good	Good	Good
Static Load Resistance	Good	Good	Good	Good	Good	Good

Details:

1.What is an Aspheric Lens?

Traditional lenses have a bulgy, curved shape. Imagine the spherical surface of a ball. An aspheric lens is designed with less curvature than its traditional counterpart. Think: flatter and thinner. In both farsighted and nearsighted prescriptions, aspheric lenses provide a slimmer profile and minimize eye distortion without compromising optical quality.


2.Benefits of Aspheric Lenses
 

• Less bulging of the lens, giving you a sleeker profile
• More frame options for individuals with strong eyeglass prescriptions or reading powers
• A more natural appearance of the eye (reduces the eye magnification that occurs with farsightedness and the smaller appearance of the eye that occurs with nearsightedness)

3.What is UV 400?

Simply put, UV 400 means that the lenses will block Ultraviolet (UV) waves shorter than or equal to 400 nano-meters (nm). All UV waves come in different lengths as shown in the chart below.



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FAQ:

Q. How many days will samples be finished? How about mass products?

A. Generally, we need 1~2 days to finish the sample production. As for the mass products, it depends on your order quantity.

 

Q. How can I get sample from you?

A. Just send us your requirements, then we will send samples accordingly.

 

Q. What is the MOQ of optical lens?

A. No MOQ for customer if optical lens is in stock.

 

Q. How do you control lens quality?

A. Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.

  

Q. How about your optical lens production ability per day?

A. About 20000 pairs/day.

 

Q. Are you a factory?

A. Yes, we are a professional optical lens manufactruer in China, and have a factory in Danyang city, Jiangsu province.