CR-39 emi-finished Lens Specification:
| CR-39 S V PLANO | Diameter:Φ65mmΦ70mm |
| Base:200B,400B ,600B,800B | |
| CR-39 ROUND TOP LENS | Diameter:Φ70/24mm, Φ70/28mm |
| Base:400B ,600B | |
| CR-39 Invisible Bifocal Lens | Diameter:Φ70/24mm, Φ70/28mm |
| Base:400B ,600B | |
| CR-39 Flat-top Bifocal Lens | Diameter: Φ70/28mm |
| Base:,400B ,600B | |
| CR-39 Progressive Lens | Diameter:Φ75mm |
| Base:200B,400B ,600B,800B | |
| CR-39 One Side Hard-coating & One Face Multi-coating (AR-coating) For Above Lens | |
Φ65mm CR-39 Single-vision Parameter
|
|
Convexity
|
Convave
|
Central Thickness (mm)
|
Edge Thickness (mm)
|
||
| Description |
Curvature
|
Radius(mm)
|
Curvature
|
Radius(mm)
|
||
|
000Base
|
0.00
|
∞
|
4.06
|
123.15
|
10
|
14.4
|
|
200Base
|
2.00
|
249.50
|
4.06
|
123.15
|
9.5
|
11.7
|
|
400Base
|
4.01
|
124.75
|
4.06
|
123.15
|
11
|
11
|
|
600Base
|
6.01
|
83.17
|
4.56
|
109.65
|
9.5
|
7.8
|
|
700Base
|
7.01
|
71.29
|
5.06
|
98.81
|
8.5
|
6.2
|
|
800Base
|
8.03
|
62.24
|
5.56
|
89.93
|
10
|
6.9
|
Φ70mm CR-39 Flat Top and Round Top Parameter
|
Description
|
Convexity
|
Convave
|
Central Thickness (mm)
|
Edge Thickness (mm)
|
||
|
Curvature
|
Radius(mm)
|
Curvature
|
Radius(mm)
|
|||
|
600Base
|
6.01
|
83.17
|
6.05
|
82.60
|
8.0
|
8.0
|
Φ75mm CR-39 Progressive Lens Parameter
|
Diameter
|
Nominal
Curve |
Ture
curve |
Radius
|
Back
Curve |
Edge
mm |
MRP |
Seg
Inset |
Fiting Cross
aboveMRP |
Sag at
50mm |
RX Range
|
|
75mm
|
200
|
2.64
|
200.80
|
4.00
|
12.00
|
3
|
3
|
2
|
1.56
|
-3.25D/-6.00D
|
|
75mm
|
400
|
4.20
|
126.40
|
4.62
|
10.50
|
3
|
3
|
2
|
2.49
|
_1.00D/-3.00D
|
|
75mm
|
600
|
6.30
|
83.98
|
6.12
|
9.50
|
3
|
3
|
2
|
3.80
|
_0.75D/+2.25D
|
|
75mm
|
800
|
8.45
|
62.80
|
6.12
|
10.00
|
3
|
3
|
2
|
5.19
|
+2.25D/+5.50D
|
