MINNEAPOLIS, Feb. 8, 2010 – Laser Safety Industries has expanded its glass processing abilities to include heat-tempering and laminating of laser safety windows. These technologies make it possible for the company to offer glass laser-safe viewing windows that have better visibility, are more durable and have higher optical densities than polycarbonate windows, and they are shatter-resistant. Heat tempering of the glass windows makes them far more impact-resistant than standard glass laser-safe viewing windows, and laminating them to a clear substrate further increases their safety qualities. The lamination keeps the windows intact and in place, allowing the operator to safely correct a problem situation. The windows are offered in standard sizes, including 100 × 200 mm and 165.1 × 165.1 mm, along with custom sizes down to .001 in., and the company offers a tolerance of ±.0005 in., if needed. Standard and most custom windows are permanently engraved with wavelengths and levels of protection to meet ANSI specifications. Custom markings are available, and CE ratings are pending. The company says that, with increased visibility, higher optical densities and better durability, glass laser safety windows excel where acrylic windows either don't have the visibility or protection required or are too easily scratched, as in laser enclosures, in combination with laser curtains or in laser machining systems.