Headlight extender and intensifier

Details Headlight extender and intensifier Headlight extender and intensifier

1992-05-28

1993-12-21

Pascal, Robert J.

Electric lamp and discharge devices: systems

Special application

Vehicle

315291, 307 108, H02J 100

Patent

active

052724166

ABSTRACT:
In a vehicle headlight having a low beam filament and a high beam filament, a resistor is installed between the filaments so that some electrical power is provided to the high beam filament when only the low beam filament is activated. This facilitates a preheating of the high beam filament to prevent damage to the filament upon an activation of the high beam circuit. In a modified embodiment, a relay is utilized to activate both filaments simultaneously when the high beam circuit is actuated so as to increase light intensity of the headlight. In a further embodiment, the resistor is replaced by an adjustable rheostat to control the degree of filament heating.

REFERENCES:
patent: 2918604 (1959-12-01), Johnston
patent: 3262011 (1966-07-01), Cones
patent: 4105898 (1978-08-01), Farler et al.
patent: 4617496 (1986-10-01), Samodovitz
patent: 4835406 (1989-05-01), Ronndahl
patent: 4979072 (1990-12-01), Ito et al.

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