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CR-39 Semi-fnished optical lens

Item No.: CR-39 Semi-fnished LENS
super qualty CR-39 optical  lens,UV400,semi-fnished lens
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Description How to order optical lens
   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
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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