A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Although footcandle calculations for floodlighting must take into consideration loss of beam lumens spilled outside area to be lighted, frequently this factor is omitted due to complication resulting; evaluating loss by introducing into conventional formula term called "beam utilization" determining "beam utilization" by means of utilization curves. (See also - discussion p 160-1)
Although footcandle calculations for floodlighting must take into consideration loss of beam lumens spilled outside area to be lighted, frequently this factor is omitted due to complication resulting; evaluating loss by introducing into conventional formula term called "beam utilization" determining "beam utilization" by means of utilization curves. (See also - discussion p 160-1)
Utilization curves for floodlights
Illum Eng
Keck, M.E. (author)
1950
5 pages
Article (Journal)
English
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