Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 193
L)|ht tbouf , 39 in t •W» ublc \ Sectional Elevation. candlepower. As would be understood,if the surgeon was leaning over theoperating table during an operation, acertain amount of light did not reachthe table, but the rays that did do soovercame the shadows cast by thehead and shoulders of the… … Plan, looking up. At the base of the lamp was fitted adetachable and specially toughened heatscreen, so that the objectionable heat,to which surgeons were subjected withthe old form of operating light, was entirely eliminated. This screen alsoprovided a means by which access couldbe obtained to the…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-321-197.webp)
