Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 40
wer,but this is by no means standard, somemakers rate by the maximum candlepowerwhatever the direction, and some evenrate lamps at the maximum candlepowerwhen equipjjed with reflectors. The resultant illumination does notdepend upon the rated candlepower, butdepends upon the equipment of… … M.H.C.P. = lOO M s.c.p.= 75 LUMENS = 915 STUAKoHT FILAMENT TUHaSTEN LAMP.PLOTTED TO M H.C.P. = IOO. P^i«;. 1. /\ ^^ ^ ^ IS w ^^ g m •^n/ScTH^ 3^ M H.C.P. = lOO M.S.C.P. = no LUMENS.^lSSO .ICBU Fll.aMENT TUNCrSTEN L«MP.PLOTTED TO M.H.C.P.=IOO. Fig. 2, Association would agree to mark theirlamps in…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
