Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 176
of such units and, after the war,when lighting restrictions are removed,their applications will naturally belargely increased. As shown in the illustration, the unitconsists of a mirror, in appropriatecasing, at the focus of which is placedan appropriate incandescent electriclamp which may be of… … B.T.H. Floodlight Projector on Tripod. Some fuller particulars of the usesof such floodlighting units, and furtherdetails of their construction, are givenin the list, copies of which oan beobtained from the British Thomson-Houston Co., Ltd., Mazda House, 77,Upper Thames Street, London, E.C. 164 THE…
Lighting
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