Nantong Lyusen Environmental Protection Purification Material Co., Ltd.

1.56 Semi-Finished Progressive Lens Wholesale

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  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens
  • 1.56 Semi-Finished Progressive Lens

1.56 Semi-Finished Progressive Lens

Progressive lens are line-free multifocals that have a seamless progression of added magnifying power for intermediate and near vision.The starting point for freeform production is a semi-finished lens, also known as a puck due to its resemblance to an ice hockey puck. These are produced in a casting process that is also used to manufacture stock lens. The semi-finished lens are produced in a casting process. Here, liquid monomers are first poured into moulds. Various substances are added to the monomers, e.g., initiators and UV absorbers. The initiator triggers a chemical reaction that leads to hardening or “curing” of the lens, while the UV absorber increases the UV absorption of the lens and prevents yellowing.

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1.56 progressive semi-finished optical lens
Model: 1.56 optical lens
Place of Origin: Jiangsu, China
Brand: SETO
Lenses Material: Resin
Bending 100B/300B/500B
Function progressive & semi-finished
Lenses Color Clear
Refractive Index: 1.56
Diameter: 70
Abbe Value: 34.7
Specific Gravity: 1.27
Transmittance: >97%
Coating Choice: UC/HC/HMC
Coating color Green
About
Nantong Lyusen Environmental Protection Purification Material Co., Ltd.
Jiangsu Green Stone Optical Co.Ltd.

Jiangsu Green Stone Optical Co., Ltd. is a professional optical lens manufacturer with strong combination of  R&D, production and sales. We have production base of 65000 square meters and more than 350 employees. With introduction of complete sets of advanced equipment, new production technology and moulds, we sell our optical lenses not only in the domestic market, but also export to the world.
Our lens products involves almost all types of lenses. Product range covers 1.499, 1.56, 1.60, 1.67, 1.70 and 1.74 index, including single vision,bifocal, progressive, blue cut, Photochromic, blue cut photochromic, Infrared cut etc. with HC, HMC and SHMC treatment. Besides finished lens, We also manufactures semi-finished blanks. The products are registered with CE&FDA and our production certified by ISO9001& ISO14001 standards.
We positively introduce excellent management technology, comprehensively import Corporate Identity System and enhance the external image of company and brand. 

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