ABSTRACT
Optical plastics differ from the optical glasses in ways that make them uniquely well suited to certain tasks. Users of plastic fiber in the 1300-nm communication range must be concerned with the possibility of reduced transmission if the fiber is allowed to absorb moisture. Many of the optical plastics have had reflective, antireflective, and dichroic coatings applied successfully. However, there are some silicones and other additives which will prevent adhesion of coatings. The Modern Plastics Encyclopedia and the Plastics Technology, Manufacturing Handbook and Buyers Guide are published annually as part of the respective magazine subscriptions. In addition to materials charts, the Modern Plastics Encyclopedia contains excellent text sections on commercial polymers. Many optical applications use plastic materials without difficulty. Dyes and pigments are used to provide transparent colors. Some have sharp absorption edges so that they can act as acceptable optical filters. Manufacturers typically have a range of colors available; however, the darker colors may significantly increase haze.
