Danyang Kangju Optical Glasses Co., Ltd. [China]

Material: Mineral Refraction Index Nd= 1.523 Abbe Value: 58 Transmission for white light > 91% Diameter: 65/28 mm

1) Material: Mineral ( Round shape bifocal lenses)

2) Refraction Index Nd= 1.523

3) Abbe Value: 58

4) Diameter: 60,65,70 mm

5) Coating: WHITE, HMC+EMI are available

1) Material: Mineral (1.523 Flat-Top Bifocal LENS)

2) Refraction Index Nd= 1.523

3) Abbe Value: 58

4) Diameter: 65/28 mm

5) Coating: WHITE,HMC+EMI

6) Color: BROWN, GRAY

1.523 Flat-top Bifocal Lens