Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 59
Fia. 2.—Section of the same Fitting. .f?Pi,£C*0;it. £F7frS-ie4L^? S? … U<^i^ti:rm VNtr:;:- ■ / \\ Fig. 3.—Photometric Distribution Curve ofLower Reflector Bow). The third slide shoAved the completeunit, the lamps being iuAnsible. DISCUSSION. 47 Mr. John Darch {communicated).—I wish to congratulate Messrs. Willcoxand Wheat on tlieir most excellentpaper on Indirect…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
