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AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses
Home » Products » Semi Finished Lens » SF Blue Block Lens » AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses
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AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses

  • SF 1.56 UV420 Blue Block Lens Blanks
  • Aogang
  • SF 1.56 UV420 Blue Block Lens Blanks
  • 1.56
  • 70MM
  • NK55, Imported From Japan
  • 38
  • 1.28
  • 97%
  • HMC/AR/Anti-Reflective
  • Base:50~1000
Quantity:

Video

Technical Data


  1.56 Blue Block Spherical Lens
  Material: 1.56 Index Resin(Ne=1.549, Abbe value=38, Specific gracity=1.28)
CONVEX SURFACECONCAVE SURFACE


Mominal CurveTrue CurveSag(sagitta: 40mm)Sag(sagitta: 50mm)RadiusRadiusCT(mm)ET(mm)Dia(mm)
1.549
0.500.49
0.180.281,117.4790.508.415.470
1.001.10
0.400.63498.708.514.3
2.002.06
0.751.17265.998.513.7
3.003.01
1.091.71182.538.511.6
4.004.03
1.462.29136.228.310.2
5.005.03
1.822.86109.088.59.4
6.006.07
2.203.4690.109.49.3
7.006.94
2.523.9779.1310.79.5
8.008.13
2.964.6867.5512.39.5
9.009.83
3.605.7355.8613.78.9
10.0010.59
3.896.2251.8614.07.8
12.0012.51
4.647.5143.8990.2215.08.1

 


Features

Semi finished:

 

AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses

Semi-finished lenses is the most primitive state of the lens, the customer can buy finished semi-finished lenses according to the required degree of finished lenses to polish, so only semi-finished lenses camber, there is no degree. Different prescription powers request for different semi-finished lens types or base curves.

 

Blue Block lens:

 

AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses

 

1) What is the blue cut lenses?

 

Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic radiation). Combined, this spectrum of colored light rays creates what we call "white light" or sunlight.

 

2) How blue cut lense work?

 

The blue cut Lenses cut down the harmful UV rays completely along with a major portion of HEV blue light, protecting our eyes and the body from potential danger. These lenses offer sharper vision and reduce the symptoms of eyestrain that are caused by a prolonged computer exposure. Also, the contrast is improved when this special blue coating reduces screen brightness so that our eyes face minimum stress when exposed to blue light.

AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses


Coating

AR/HMC Coating:

 

Used to reduce reflection from surfaces. Whenever a ray of light moves from one medium to another (such as when light enters a sheet of glass after travelling through air), some portion of the light is reflected from the surface (known as the interface) between the two media.

 

AR Coating Blue Light Filter Lenses Blank , 1.56 Semi Finished Blu Ray Anti Glare Lenses


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