[Visual work capacity with different sources of illumination]. / Zritel'naia rabotosposobnost' pri razlichnykh istochnikakh osveshcheniia.

The state of visual working capacity was comparatively investigated under conditions of natural light and artificial light using different sources of light (filament lamps, luminescent, sodium, mercury-arc lamps). It was found that sodium lamps were most adequate for high functional capacity of the visual analyzer.