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ASP Semi Finished Lens Blanks 1.67 High Index HMC Coating UV400 Protection
Home » Products » Semi Finished Lens » SF 1.61 Single Vision Lens » ASP Semi Finished Lens Blanks 1.67 High Index HMC Coating UV400 Protection
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ASP Semi Finished Lens Blanks 1.67 High Index HMC Coating UV400 Protection

  • Semi Finished Single Vision
  • Aogang
  • 9001509900
  • 1.67
  • 70mm
  • MR-7, imported from Korea
  • 33
  • 1.34
  • > 97%
  • UC, HC, HMC
  • Base: 50~1000
Quantity:

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Technical Data

1.67 Semi Finished Lens
Material: 1.67 Index Resin(Ne=1.67, Abbe value=34, Specific gravity=1.33 )
NOMINAL
CURVE
TRUE*
CURVE
Radius of
Curvature
SAG 40
(mm)
BACK
CURVE
DIAMETER*
(mm)
C.T*
(mm)
E.T*
(mm)
0.500.70950.000.2312.00705.917.8
1.000.93715.050.306.60757.313.5
2.002.13312.210.626.60757.312.5
3.002.91228.520.883.70759.310.6
4.003.99166.671.183.70758.08.2
5.005.02132.471.505.40756.67.1
6.005.94111.951.755.40707.27.1
7.007.0893.932.086.60707.17.1
8.008.0382.812.358.10706.47.1
9.0010.5662.973.085.407011.36.7


Product Features

  • The definition of semi finished lens:       

 

  • A lens with only one of the two surfaces finished is called a semi finished lens because it is only half finished. The prefix semi means half.

 

  • Finished uncut and semi finished lenses have not beem edged. Before a lens has been edged, it is called a lens blanks.

ASP Semi Finished Lens Blanks 1.67 High Index HMC Coating UV400 Protection

                            

  • 1.67 High index lens: 


1. What are 1.67 high index lenses?

1.67 high-index lenses are made from materials---MR-7(imported from Korea), that allow optical lenses to be made ultra thin and ultralight-weight by bending light more efficiently.


2. 1.67 high index lens technology

Thinner and lighter high-index lens materials have made the world of eyeglasses very different.


3. What are 1.67 high-index lenses?

Made with dense materials with lots of light-bending power, they are be much thinner, flatter and more lightweight than standard lenses.


4. How do they work?

Glasses correct your vision by bending the light that passes through to your eyes. The stronger your prescription, the more the light needs to bend. This generally means a thick lens, but not with a high index lens that bends light through less thickness.


5. What are 1.67 high index lenses benefits?

A thinner, flatter high-index lens provides the same strength of correction as a thicker standard lens. That means people who are very short-sighted can avoid extra-thick lenses that make their eyes look unnaturally large; long-sighted people can avoid lenses that make their eyes look exceptionally small.


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