71 m/m Extra Thick Single Vision

 

Semi-Finished:

Material CR-39*

 

71 m/m Base Curves:

 

2.00 Base, 4.25 Bases, 6.25 Base, 8.25 Base, 10.25 Base, 12.00 Base

 

 

                                                            Data Sheet

                                    71m/m Extra Thick Single Vision

 

 

 

Lens Style

Actual Size

Nominal Curve

Actual Curve

Back Curve

Sag 50m/m

C.T.

E.T.

Seg Inset

Seg Drop

 

 

 

 

 

 

 

 

 

 

S.V.

71m/m

2.00

2.00

2.25

1.191

11.4

11.5

S.V.

S.V.

S.V.

71m/m

4.25

4.25

2.25

2.573

14.0

11.5

S.V.

S.V.

S.V.

71m/m

6.25

6.25

2.25

3.864

16.6

11.5

S.V.

S.V.

S.V.

71m/m

8.25

8.25

2.25

5.240

19.4

11.5

S.V.

S.V.

S.V.

71m/m

10.25

10.25

2.25

6.742

23.2

11.5

S.V.

S.V.