Illumination items: High intensity and eye-fatigue

The problem of proper illumination for the modern industrial plant is receiving increasing attention from plant managers. Numerous practical tests¹ have been made and the results of such investigations have stimulated further activity in this field, and in consequence, the average intensity of illumination in use has steadily increased. The improvement in production and the betterment of working conditions in general, has been brought about by increasing the intensity of both local and general lighting, and by carefully designing the distribution of the light.