Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 366
onveniently be ex-pressed in terms of candle-power. Werecognise the difficulties, but it is surelydesirable that some common method ofexpressing the illmninating effect on adistant object should be available. Wehope that manufacturers will not overlookthis possibility. This matter deservescloser… … Fig, 2.— Complete Mobile Projector Equipment.
Lighting
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