Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 176
nvention of Dr. R J. E. Hanson, O.B.E.,ophthalmic surgeon to the Admiralty,and presents several interesting features.It will be noted that the twin chairs areeach provided with a convenient book- position. It is not always practicableto fix the relative positions of light andchair, but in some… … rest, but are served by a single light-source, permanently placed so thateach reader receives light over the leftshoulder. In ordinary drawing-rooms this rule isfrequently not complied with, chieflybecause the position of the chair withrespect to the source of light is variable,and readers cannot…
Lighting
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