Specification of Semi-Finished Bifocal Lenses

        Semi-Finished Bifocal Lens         Flat Top

Description Ring 40mm Diameter(mm) Rear Curve C.T. E.T.
2.00B 0.820 69.8 -6.00 10.0 14.0
4.00B 1.576 69.8 -6.00 10.0 12.0
6.00B 2.328 69.8 -3.40 9.0 6.0
8.00B 3.190 69.8 -3.40 13.0 6.0

Add +1.00 - +3.00
 

Home | Finished Lenses | Semi-finished Lenses | Special Products | Coating | Services | Contact us | Forms
 

YayaTech
11018 Country Club Road, New Market, MD 21774
Tel: 301 865-7569, Fax: 240 363-0201
Info@yayatechnology.com