Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 215
Fig. 1.—Simplex Anti-Zeppelin Reflector.(Intensive type for half-watt lamps.) Fig. 2.—Simplex Angle Reflector forhalf-watt lamps. shown in Fig. 1. This variety isintended for half-watt lamps, and is ofthe intensive typo ; a corresponding extensive tj^pe, intended, to givea wider distribution of…
Lighting
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