Car headlamp with light beam width regulator for vertical adjustment of light distributor with light-dark transition line, which extends horizontally

摘要

Light-dark transition line extends horizontally and is symmetrically formed, at least in region of road track to be illuminated. Light distribution in this region, below transition line, is of high intensity. Between dipped and full beam illumination transition line is vertically adjustable by light width regulator etc. Fail-safe appliance prevents blinding glare of opposite traffic, caused by mechanical seizing, or electric breakdown, by manual or electric adjuster.