This student manual discussed the nature of light and industrial lighting as part of a modularized course intended for advanced training of students in the field of industrial hygiene, with an emphasis on controlling exposures found in the workplace. Information was provided on the nature of light, the electromagnetic spectrum, quantum theory, emission spectra, incandescence, fluorescence and fluorescent lamps, and the properties of different light sources. The manual also discussed the eye, some objective factors (size, contrast, brightness, and time) in the seeing process, and some terms used by illumination engineers. The design of a lighting system was considered, including a consideration of many variables such as the purpose of the lighting, the severity of the seeing task, the length of time the task is to be performed, architectural and decorative requirements, constructional limitations, and other concerns.
Division of Training and Manpower Development, NIOSH, U.S. Department of Health, Education and Welfare, Cincinnati, Ohio, 85 pages, 7 references