Import 1.61&1.67 Photochromic Lenses — Buy in Bulk from Supplier in China

These 1.61 and 1.67 refractive index photochromic lenses from Changxing Optical Glasses Factory in Danyang, Jiangsu, are designed for prescription eyewear that adapts to changing light. The lenses start with no base colour and darken to grey or brown upon UV exposure, then clear again indoors. The source description notes they change colour quickly and maintain stable colour consistency across shipments, a key factor for eyewear brands requiring batch uniformity. Available diameters are 65mm and 70mm, with a 75mm option also listed. The factory uses imported PPG material to help prevent the lenses yellowing over a two-year period.

A significant feature is the high index construction, which makes these lenses approximately 35% thinner than standard CR-39 (1.499 index) lenses. This results in lighter, more comfortable eyewear, particularly for higher prescriptions. The lenses block 100% of harmful UV rays (UV 400) and are stated to perform well in all climates throughout the year. Coating options include UC (uncoated), HC (hard coat), HMC (hard multi-coat), and EMI (electromagnetic interference). Semi-finished lens blanks are available. For trade, the supplier offers free samples with the buyer covering freight charges. Specific MOQ and pricing should be confirmed directly with Changxing Optical Glasses Factory.

Changxing Optical Glasses Factory is based in Danyang City, Jiangsu Province, China, a well-known hub for optical manufacturing. According to its profile, the factory has been established for more than 10 years and operates two production lines. It manufactures a range of lens types including CR-39 (1.499), 1.56, 1.61, and 1.67 high index lenses, as well as photochromic, tinted sunglasses, blue light blocker, and progressive lenses.

The listed production capacity is over 10,000 pairs per day. The supplier's address is No.8 Xinxiwang Road, Development Zone, Danyang 212300. Note that the supplier's response rate and average response time are not currently indicated on the platform. Buyers are advised to confirm communication expectations and request any relevant quality or material certifications directly from the factory before placing an order.