Free-Radical Recording Films.
Final technical rept. 15 Dec 67-15 Dec 68,
HORIZONS RESEARCH INC CLEVELAND OH
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Non-silver, organic, dry-processed, violet and blue radiation sensitive free-radical films have been developed for argon-ion laser recording applications. The latent image may be optically developed in a period of 2 to 3 seconds by uniform exposure to red and near infrared radiation after an initial exposure in the region of 1 to 10 mjsq cm at 488 nm. The image color is close to neutral, although small shifts in color are observed after extensive post-processing exposure. Fixing is accomplished by heating the film to a temperature in the region of 145C for 60 seconds. The film, after optical development, may be viewed in high intensity yellow illumination, thus providing near-real-time viewing. There exists a tradeoff between film speed and shelf life higher speed films having a shelf life of only a few days at room temperature while lower sensitivity films possess a shelf life as long as 2 months at this temperature. Although the practicality of this film and processing concept has been established for argon-ion laser recording, additional work is required in order to improve the sensitivity, quality of machine coatings, shelf life, and processing technology. Author