Control circuit for automobile headlamps emitting light in varia

Details Control circuit for automobile headlamps emitting light in varia Control circuit for automobile headlamps emitting light in varia

1994-12-20

1996-06-18

Gromada, Denise L.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362276, 362802, 362293, 362280, B60Q 100

Patent

active

055284752

ABSTRACT:
A control circuit for automobile headlamps which emit light in variable color. The control circuit prevents left and right headlamps from emitting beams of light in different colors. Each headlamp includes a white light bulb, and a yellow globe is moved from a first position to a second position to cover the bulb when yellow light is selected, and the yellow globe is moved back to the first position when white light is selected. If the movement of the globe stops between the first and second positions, the control circuit generates a fault signal for turning off the headlamp associated with the fault, thus preventing the headlamps from emitting light of different colors. Alternatively, the control circuit can adjust the position of the globe for the headlamp without the fault to be in agreement with the position with the headlamp having the fault, such that both headlamps emit light of the same color.

REFERENCES:
patent: 4951178 (1990-08-01), Shirai et al.
patent: 5029050 (1991-07-01), Bergkvist
patent: 5036437 (1991-07-01), Macks
patent: 5251110 (1993-10-01), Leleve

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