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CR-39 bifocal optical lens

Item No.: CR-39-BI
super qualty CR-39 Single vision lens,UV400, AR coating aviable,tinted color aviable.
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Description How to order optical lens
CR-39 BIFOCAL LENS (FLAT TOP BIFOCAL ,ROUND TOP BIFOCAL ,INVISABLE BIFOCAL LENS))
 
 




 

Flat Top Bifocal
Size:70/28mm
Base:4.00/6.00
Power: -2.00 TO +3.00
 Add: +1.00 TO +3.00

 

 

 

 

 

 

 

Round Top Bifocal
Size:70/28mm 70/24mm
Base:4.00/6.00
Power: -2.00 TO +3.00
 Add: +1.00 TO +3.00

 

 

 


Invisible Bifocal
Size:70/28mm 70/24mm
Base:4.00/6.00
Power: -2.00 TO +3.00
 Add: +1.00 TO +3.00









 

Front curve(convex): 6.00+/-0.03
Center thickness: 2.0mm+/-0.3mm
Diameter tolerance: 70mm+/-0.3mm

SPH
ADD
1.00
1.25
1.50
1.75
2.00
2.25
2.50

2.75

3.00

+0.00

                 
+0.25
                 
+0.50
                 
+0.75
                 
+1.00
                 
+1.25
                 
+1.50
 
Round Bifocal,Invisble Bifocal,Flat Bifocal
   
+1.75
     
+2.00
                 
+2.25
                 
+2.50
                 
+2.75
                 
+3.00
                 
-0.25
                 
-0.50
                 
-0.75
                 
-1.00
                 
-1.25
                 
-1.50
                 
-1.75
                 
-2.00
     
Round Bifocal,Invisble Bifocal
     
-2.25
           
-2.50
                 
-2.75
                 
-3.0>0
                 


  All the CR-39 single vision lens can be AR Ccoating,EMI ciating. can be tinted color
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