METHOD AND DEVICE FOR CONTROLLING POSITION OF VEHICLE HEADLIGHT BEAM Russian patent published in 2006 - IPC F21S8/12 F21V14/00 B60Q1/04 

FIELD: controlling vehicle headlight beam position.

SUBSTANCE: proposed method includes concentration of light source beam by means of axially symmetric ellipsoid reflector in vicinity of its second focal plane at input end of fiber-optic image converter having vignetting component; shape of fiber-optic image converter output end is mirror image of that of headlight beam distribution and is disposed in focal plane of condenser lens. Position of headlight beam relative to roadbed is controlled by turning fiber-optic image converter in horizontal and/or vertical plane relative to second focal point of ellipsoid reflector disposed on input end of fiber-optic image converter. Device implementing this method has fiber-optic image converter with vignetting component mounted on spherical joint whose center is disposed at input end and coincides with position of reflector second focal point; movable part of spherical joint is provided with carrier elastically tightened in two planes (horizontal and vertical ones) crossing reflector optical axis; carrier is joined through adjusting screws to headlight body which is rigidly fixed to reflector.

EFFECT: reduced size and mass, improved ergonomic and basic lighting characteristics of headlight, improved aerodynamic characteristics and design of vehicle.

5 cl, 15 dwg