65m/m Single Vision Large Field

 

Semi-Finished

Material: CR-39*

 

Base Curves:  14.00, 16.00, 18.00, 20.00

 

Field Size         Blank Size

14.00 Base        60m/m-65m/m

16.00 Base        54m/m-65m/m

18.00 Base        48m/m-65m/m

20.00 Base        44m/m-65m/m

 

65m/m Extra Thick 15m/m Edge available          

65m/m Extra Thick 22m/m Edge available

 

 

                                                                                                                                             

Index of Refraction: 1.498                                                                                                              

Abbe Value: 58                                                                                                              

Specific Gravity:  1.32

Large Field Single Vision

65m/m Blanks                                                                                                                                            

 

 Note:*          

 

 

Lens         Actual            Nominal    Actual          Back        Sag                                               Seg            Seg

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

S.V.           *60/65           14.00          14.50            2.25          10.695     20.0          11.5          S.V.           S.V

S.V.           *54/65           16.00          16.50            2.25          13.307     19.6          11.5          S.V.           S.V

S.V.           *48/65           18.00          18.50            2.25          17.392     18.2          11.5          S.V.           S.V

S.V.           *44/65           20.00          20.50            2.25          16.213     17.8          11.5          S.V.           S.V

Note: *Higher Bases have reduction in FIELD SIZE.