METHOD AND COMPOSITION FOR RESTORING DAMAGED OPTICAL SUBSTRATES UTILIZING HIGH REFRACTIVE INDEX ULTRAVIOLET CURABLE COATING

摘要

The present invention describes a method for repairing defects on a surface of an optical substrate. The method includes a step of providing a radiation curable coating and then applying the coating onto a surface of the optical substrate. The coating is then cured with a UV light source causing the refractive index of the coating to be less than ±10% of the refractive index of the substrate. The cured coating exhibits a viscosity less than about 315 CP at 25 °C. The present invention also describes a novel coating composition for repairing optical substrates.