International prices of optical-grade polycarbonate (PC) have further slipped from US$2.5/kg in November 2008 to about US$2.0/kg currently, and consequently Taiwan-based makers of blank optical discs ...

The international price of optical-grade polycarbonate, a material used in the substrate of optical discs, has dropped by 5.7% from US$2.65/kg in the third quarter of 2007 to US$2.50/kg in the fourth ...

Polycarbonate is the ideal lens material for corrective eyeglasses and sunglasses due to its light weight, impact resistance, durability and comfort. However, not all polycarbonate for eyewear ...

A light guide transmits light with high uniformity and minimal loss from an LED light source to a particular area away from its light source. Light guides are made from optical grade material such as ...