Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 54
Fig. 4. -Drawing Office Lighting Inightview). Indirect Light by Mirolux Trough Reflectors attached to cro^sgirders. FlG. 5.—Drawing Office Lighting Inightview). Indirect Lighting. (d) The Diffusing System, which em-ploys a sphere or opal globe completelyenclosing the lamp. The. light is diffusedor…
Lighting
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