Automatic headlamp dimming system

Details Automatic headlamp dimming system Automatic headlamp dimming system

1987-12-24

1989-08-29

Yusko, Donald J.

Electric lamp and discharge devices: systems

Special application

Vehicle

315 82, 315155, 315156, B60Q 102

Patent

active

048620378

ABSTRACT:
A method and apparatus for automatically responding to headlamp radiation from oncoming vehicles to down-switch beam patterns in a tri-beam headlamp system in an automotive vehicle. A mid-beam sensor is provided to detect only that headlamp radiation from oncoming vehicles present within the defined high intensity projection areas of the mid-beam pattern and functions in conjunction with a conventional automatic dimmer sensor and a unique control circuit to achieve appropriate and automatic down-switching.

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