Jiangsu Opti-Asia CO.,LTD

YG003(1)
YG008(1)
YG010(1)
YG011(1)

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photochromic blanks
Specification: ND=1.523
Detail: Specifications: 1) Refractive index ND: 1.523 2) Density: 2.41g/cm2 3) Abbe number: 58.5

uv white 330 moulds blanks for cr-39 lenses
Specification: ND=1.523
Detail: Specifications: 1) Refractive Index ND: 1.523 2) Density; 2.553g/cm3 3) Abbe number: 60.5 4) Thermal expansion coefficient: 92 x 10-7k-1

uv white glass lenses
Specification: ND=1.523
Detail: Specifications: 1) Diameter: 56mm, 60mm, 65mm, 70mm 2) Power range: G2/0 - G8/0, G2/2 - G6/2, G2/4 - G4/4 3) Refractive index ND: 1.523 4) Density: 2.533 5) Abbe number: 60.5 6) Visible light transmission rate: 92% 7) U...


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