System for controlling lighting in an illuminating indicating de

Details System for controlling lighting in an illuminating indicating de System for controlling lighting in an illuminating indicating de

1997-06-30

1999-04-20

Shingleton, Michael

Electric lamp and discharge devices: systems

Special application

Vehicle

315311, 315307, 315312, 315313, 315324, 307 108, B60Q 102

Patent

active

058960104

ABSTRACT:
A system for providing one-step dimming of indicator lights in an illuminating indicating device while allowing adjustable control of the general illumination of the device. The system includes a first current drain (176) coupled to an indicator light source (32-42) for drawing a first current through the indicator light source. A second current drain (186), controlled by control circuitry (198), couples to the indicator light source (32-42) for selectively drawing additional current through the indicator light source (32-42). In a preferred embodiment, the first current drain (176) couples to the second current drain (186) to regulate the additional current draw by the second current drain (186). Preferably, the control circuitry (198) is responsive to an illumination signal to prevent the additional current draw during a low ambient light condition. For general illumination of the indicator device (10), an illumination light source (56-60) responsive to the illumination signal may also be included.

REFERENCES:
patent: 4162430 (1979-07-01), Cadoff et al.
patent: 4358717 (1982-11-01), Elliott
patent: 4388558 (1983-06-01), Mizuno et al.
patent: 4590407 (1986-05-01), Bristol
patent: 4634936 (1987-01-01), Gentry et al.
patent: 4786843 (1988-11-01), Yamamoto et al.
patent: 4979072 (1990-12-01), Ito et al.

Affiliated with

Also associated with

Rating

System for controlling lighting in an illuminating indicating de does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for controlling lighting in an illuminating indicating de, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling lighting in an illuminating indicating de will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2250064