19 Jan 2006 IR visual display devices are a reliable help for the evaluation of laser beam paths with 700 to 1300 nm. The laser light is converted by an integral photo-cathode tube into a clearly visible green and is thereby easily distinguished from its surroundings. Two models based on the world-wide standardized tube model 6914 are available. The IR visual display device model 86600 is recommended for visualization from 700 to 1100 nm. Wavelengths up to 1300 nm are displayed with high contrast using the model 86910. In this device, selected tubes which reach further into the IR are used. | 
