The lighting book; a manual for the layman, setting forth the practical and esthetic sides of good lighting for the home (1913)
Godinez, F. Laurent · New York, McBride, Nast & company · leaf 75
Comparison of various reflectors with tungsten lamps of the same size. 1. Opal shade; 2. Smooth aluminum reflector; 3. Reflector of pure silver; 4. Cone of blotting paper; 5. Bare lamp; 6. Fljit mirror plate above lamp. See page 65 … Comparison of their reflecting surfaces with tungsten andWelsbach lamps. 1. Welsbach inverted mantle opal shade;2. Blotting paper; 3. Tungsten lamp in pure silver re-flector; 4. Aluminum reflector over inverted gas mantle;5. Ordinary newspaper: 6. A mirror plate.See pase 67 VISHADING AND…
Lighting
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