The requirements for a real-time color underwater viewing system

A detailed study of spectral conditions along with those other elements required to view color through water using television has resulted in rather stringent requirements for equipment and approaches used for this purpose. Data compiled on lighting, water, image sensors, and other factors, is used to predict equipment and system requirements. The results of these data emphasize the severe attenuation of wavelengths in the red region which indicates the need to use intensified vidicons or silicon diode image tubes in conjunction with tungsten-halogen light sources to assemble a color system practical for a wide range of applications. Types of color television systems are reviewed for their application to the underwater environment. The comparison indicates that many of the configurations would be impractical for underwater use, and that others would only be usable in limited applications. The requirements for an easily usable color system are examined by reviewing some of the applications for color real time viewing underwater. Some unique control configurations and packaging are proposed to meet the requirements of being easily usable.