Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 267
lamp orreflector can be seen from the firing-point.Fig. 6 is a photograph of the targets andlamp arrangement taken inside the targetchamber, and the appearance of the this purpose has led to an interesting tran-sition of surface brightness from thetargets to the black woodwork whichforms the end of… … Fig. 8.—Range at H.M. Patent Ofike.Curve A=Illumination along line YY. Curve B=Illumination along line XX. targets as seen from near the firing-pointis shown in Fig. 7. (These photographswere taken by Mr. Dow, entirely by theartificial light provided for the range.) The details of the target…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
