Device for adjusting the level of brightness emitted by a lamp

Details Device for adjusting the level of brightness emitted by a lamp Device for adjusting the level of brightness emitted by a lamp

1976-04-23

1978-08-08

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Special application

Vehicle

315 83, B60Q 102

Patent

active

041059271

ABSTRACT:
A device for adjusting the level of brightness of a lamp, especially the headlight lamp in a head lamp device or assembly of a vehicle including said headlight lamp and a dimlight lamp. The device includes a switching arrangement to feed current either to said headlight lamp or to said dimlight lamp.
An electronic device, connected to said headlight lamp, includes an electric energy storing apparatus which is connected to be fed by current during such an activation of the switching arrangement that said arrangement feeds current to the headlight lamp.
When the switching arrangement thereafter is activated to feed current to the dimlight lamp, the storing apparatus is discharged and feeds a decreased current or voltage, which by electronic means control the current and causes the headlight lamp to reduce its level of brightness.

REFERENCES:
patent: 2786963 (1957-03-01), Vogt
patent: 3121823 (1964-02-01), Brock et al.
patent: 3355624 (1967-11-01), Guyton et al.
patent: 3546527 (1970-12-01), Chunn et al.
patent: 3689806 (1972-09-01), Saita

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