Discusses research undertaken to determine recommended levels of lighting for effective seeing. Factors considered include age, veiling reflections, brightness differences, glare, and pleasantness. Also points out some common lighting practices that are wasteful and inefficient and suggests alternatives. (DN)

The role of reflected glare and visual viewing angles in near task performance is discussed, and following statements are reported--(1) a worker at a desk normally assumes a position in which his eyes traverse an area of work extending from a point approximately vertically below his eyes to a point not more than 40 degrees from the vertical, (2) a…