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　　CR-39 SEMI-FINISHED LENS


- Semi-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
mm

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

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