Quick Information
- Place of Origin:Korea
Description
SEMIX Semi-Finished Single Vision Uncoated Blank
Specifications and Availability
- Material : 1.61 Index Resin (nd=1.592, Abbe=42, Specific gravity=1.34)
- Lens Size : 75mm Diameter with optics centered
- Tolerance of Center & EdgeThickness : ± 0.3mm
- Tolerance of Diameter : ± 0.5mm
High Index 1.61 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=1.592)
(D) |
50 mm bell
(mm) |
Radius
(R1 in mm) |
Radius
(R2 in mm) |
(D)
|
(mm)
|
(mm)
|
|
0.50
|
0.47
|
0.25
|
1250.08
|
90.41
|
-5.00
to -16.00 |
7.5
|
15.0
|
|
1.00
|
0.98
|
0.52
|
606.23
|
90.41
|
-3.50
to -4.75 |
7.5
|
9.0
|
|
2.00
|
2.04
|
1.08
|
290.20
|
90.41
|
-2.50
to -3.25 |
7.5
|
8.0
|
|
3.00
|
3.13
|
1.66
|
189.21
|
90.41
|
-1.50
to -2.25 |
7.6
|
11.5
|
|
4.00
|
4.82
|
2.57
|
122.77
|
90.41
|
-1.25
to +1.25 |
8.0
|
10.5
|
|
5.00
|
5.98
|
3.21
|
99.06
|
90.41
|
+1.50
to +2.75 |
8.5
|
10.0
|
|
6.00
|
6.69
|
3.61
|
88.48
|
90.41
|
+3.00
to +3.75 |
8.5
|
9.0
|
|
7.00
|
7.12
|
3.85
|
83.19
|
98.59
|
+4.00
to +4.75 |
8.5
|
8.0
|
|
8.00
|
8.21
|
4.47
|
72.09
|
98.59
|
+5.00
to +6.00 |
10.0
|
7.5
|
