Samenvatting
Details are given of a device that automatically reduces the light intensity of a dipped headlight beam to about a 10% of the full value in good street lighting, but retains full intensity in poor street lighting.
Details are given of a device that automatically reduces the light intensity of a dipped headlight beam to about a 10% of the full value in good street lighting, but retains full intensity in poor street lighting.
Lighting Research and Technology, Vol. 5 (1973), No. 3, p. 162-164, 4 fig., 6 ref.
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