UV PHOTOPOLYMER MATERIALS AND TECHNIQUE FOR MAKING LASER GLASS

A technique and the materials required for making laser glass are desc ribed. The technique includes cleaning glass plates, coating UV photop olymer materials onto the glass plates, attaching a master hologram to the plates, using exposure to UV light to cure the coating, screen pr inting, vacuum film depositing, and covering the plates with a protect ive coating. The UV photopolymer material is composed of a photoinitia tor, a monomer, an oligomer, and other additives, The experimental res ults show that the laser-glass products have a high resistance to alka li. acid, heating. and UV irradiation. (C) 1997 Optical Society of Ame rica.