Shenzhen Tongyi Optical Technology Co., Ltd. [China]

Detailed Product Description

Semi-finished lens(Optical lens)

Index: 1.49, 1.56, 1.61

Base: 2,4,6,8,10,12,14

Center thickness; 3.00 to 10.00mm relying on different base and power.

Coating: Convex side HMC

Single vision, 65mm, 70mm, 75mm

Bifocal(Round top 70/28mm, 70/24mm).  Blend top(70/28mm, 70/24mm)

Flat top (70/28m, 70/30mm).

Progressive semi-finished, Diameter 75mm, short corridor 14mm, Regular corridor 17mm.