A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation due to French law that automobiles must have an apparatus capable of illuminating beyond 100 m., and therefore requiring a flattened pencil of suitable dimensions, instead of sensibly round one afforded by usual paraboloid reflector; how required optical combination was obtained.
Investigation due to French law that automobiles must have an apparatus capable of illuminating beyond 100 m., and therefore requiring a flattened pencil of suitable dimensions, instead of sensibly round one afforded by usual paraboloid reflector; how required optical combination was obtained.
On a combination of reflectors
Sur une combinaison de reflecteurs
Marsat (author)
1923
3 pages
3 Figs.
Article (Journal)
French
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