Manufacture of incandescent lamps for automobiles on automatic-machine basis; simplification enables 11 or 12 types to meet 90 per cent of demand; adoption of fixedfocus head lamps by several car manufacturers was greatest advance in 1928 and should do much to reduce glare; interior lighting can be improved still more by using 15 or 21-cp. lamps; no solution of fog problem has been reached; less light rather than more is desirable. (See also - discussion p 518-519)
The incandescent lamp for automotive lighting
Soc. Automotive Engrs. -- Jl
Society of Automotive Engineers -- Journal ; 25 , n 5
1929
4 pages
7 Figs.
Article (Journal)
English
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