Y&S completed its developing of full series new generation of Photo 156 Grey (1.56 Photochromic Grey Lenses) recently. Due to high original transmittance, high rate of darkening in the Sun and thorough fading capability, the new Photo 156 Grey can be used well throughout the year, in and out of doors, in all climates and for many different activities.

The following products are available from Photo 156 Grey material.

Photo 156 Grey Single Vision Lenses

Photo 156 Grey Round-shape Bifocal Lenses

Photo 156 Grey Flat-top Bifocal Lenses

Photo 156 Grey Progressive Lenses, 12mm Short Corridor, Molds provided by CORNING

For more information about the new Photo 156 Grey, please visit http://www.ystj.com/optical/ol_3.htm. Price lists of both finished and semi-finished lenses are included in http://www.ystj.com/optical/ol_3_1.htm and http://www.ystj.com/optical/ol_3_2.htm; available power range, curve and thickness data are also included in these web pages. 

Being a member of China Optometric & Optical Association (COOA), Y&S is one of the leading manufacturers and exporters in China supplying full range of Ophthalmic Lenses and Blanks. The company is ISO9001 (2008) certified, relevant products have been approved by TUV according to CE standards and also registered with government in many countries, including FDA in USA. Besides CR-39 Hard Resin Lenses, 1.56 Middle Index Hard Resin Lenses, 1.59 Polycarbonate Lenses, 1.60 / 1.67 Hi-index Hard Resin Lenses, Mineral White 1.523 Optical (Crown) Lenses, 1.7 / 1.8 Hi-index Lenses, Photochromic Lenses, Sunlens, Polarized Lenses, Y&S also provides PhotoGray Extra (PGX) and PhotoBrown Extra (PBX) Lenses made from CORNING blanks.

With years of experience in this field and high reputation, various products of Y&S have been proved to be very competitive and sell well in overseas markets.