71m/m Round 15m/m Bi-focal (Golfer's Classic)

 

 Semi-Finished

 Material: CR-39*

   

 Base Curves: 2.00, 4.25, 6.25, 8.25, 10.25

 Additions: .50-10.00 in .25 steps (ex. 1.25, 1.50, 1.75, 2.00)

 

 

 Material CR-39* Plastic                                               Specific Gravity: 1:32

 Index of Refraction: 1.498                                  Rd.-15m/m Golfer's Classic

 Abbe Value: 58                                                                    71m/m Blanks

 

Note:*

 

 Lens        Actual            Nominal    Actual          Back        Sag                                               Seg            Seg

 Style          Size                 Curve       Curve           Curve       50m/m     C.T.          E.T.           Inset         Drop

 


 Rd-15      71m/m               2.00          2.00            2.25          1.191      11.2          11.5            0.0            10.0

 Rd-15      71 m/m              4.25          4.25            6.25          2.573        9.0          11.5            0.0            10.0

 Rd-15      71 m/m              6.25          6.25            6.25          3.864        8.2          11.5            0.0            10.0

 Rd-15      71 m/m              8.25          8.25            6.25          5.240      10.8          11.5            0.0            10.0

 Rd-15      71 m/m           10.25        10.25            6.25          **               **             **             **            **

 

Note: *Over 10.00 Diopter addition adds THICKNESS and changes ALL BACK CURVES to -2.25.

Note: **Information Not Available At Press Time.

 

 

 

 

 

 

 

 

 


Golfer's Classic

Blank Size: 71mm