Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 432
s hoped,serve as a guide to recent commercial developments, and we welcome the receipt of all bona fide information (lating tliereto.] Semi-Indirect Lighting. The British Thomson-Houston Co. haverecently produced a lino of semi-indirectlighting fittings, with s. view to filling thegap between… … other for clusters of four or six ]Mazdalamps. The reflector bowls are made ofa specially prepared o|jal glass, whichtransmits a small portion of the light,but tlirows most of it on to the ceiling,wlience it is reflected evenly over the room. The opal glass of which the bowlsare made is stated to…
Lighting
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