Quick Information
- Place of Origin:Korea
Description
SEMIX Semi-Finished Single Vision Uncoated Blank
Specifications and Availability
- Material : 1.67 Index Resin (nd=1.665, Abbe=32, Specific gravity=1.35)
- Lens Size : 70mm Diameter with optics centered
- Tolerance of Center & EdgeThickness : ± 0.3mm
- Tolerance of Diameter : ± 0.5mm
Ultra High Index 1.67 75mm Aspherical Blank Data Sheet
|
Nominal
Base curve |
Actual
convex curve |
Sagitta
depth Gauge |
Far vision
Convex |
Concave
|
Power
Range |
Center
Thickness |
Edge
Thickness |
|
(D)
|
(N=1.665)
(D) |
50 mm bell
(mm) |
Radius
(R1 in mm) |
Radius
(R2 in mm) |
(D)
|
(mm)
|
(mm)
|
|
0.50
|
0.50
|
0.23
|
1333.41
|
90.41
|
-5.00
to -20.00 |
6.6
|
14.0
|
|
1.00
|
1.06
|
0.48
|
645.32
|
90.41
|
-3.50
to -4.75 |
6.7
|
13.0
|
|
2.00
|
2.29
|
1.08
|
290.20
|
90.41
|
-2.50
to -3.25 |
6.7
|
12.0
|
|
3.00
|
3.45
|
1.63
|
192.83
|
90.41
|
-1.50
to -2.25 |
6.7
|
11.0
|
|
4.00
|
5.32
|
2.52
|
125.03
|
90.41
|
-1.25
to +1.25 |
7.2
|
9.5
|
|
5.00
|
6.62
|
3.16
|
100.51
|
90.41
|
+1.50
to +2.25 |
7.5
|
8.5
|
|
6.00
|
7.48
|
3.59
|
88.86
|
90.41
|
+2.50
to +3.50 |
8.7
|
9.0
|
|
7.00
|
7.99
|
3.85
|
83.19
|
98.59
|
+3.50
to +4.50 |
8.2
|
7.0
|
|
8.00
|
9.16
|
4.44
|
72.58
|
98.59
|
+4.75
to +5.50 |
9.9
|
7.0
|
