Lighting unit with discharge lamps, particularly for...

Details Lighting unit with discharge lamps, particularly for... Lighting unit with discharge lamps, particularly for...

2005-10-11

2005-10-11

O'Shea, Sandra (Department: 2875)

Illumination

Light source and modifier

Including selected wavelength modifier

C362S373000, C362S294000, C362S264000

Reexamination Certificate

active

06953269

ABSTRACT:
A lighting unit with discharge lamps, particularly for spotlights and the like, including a discharge lamp inside a containment enclosure and ventilation elements for cooling the lamp, a control unit that drives a lamp power supply to supply variable power levels to the lamp and a fan power supply for actuating the ventilation elements at a variable speed. The control unit is controlled by signals imparted from outside and/or by signals that can be derived from measurements taken inside the lighting unit.

REFERENCES:
patent: 4298806 (1981-11-01), Herold
patent: 5882107 (1999-03-01), Bornhorst et al.
patent: 6227686 (2001-05-01), Takahashi et al.
patent: 6241366 (2001-06-01), Roman et al.
patent: 6341879 (2002-01-01), Skinner et al.
patent: 6588907 (2003-07-01), Billington et al.
patent: 39 23 108 (1990-02-01), None
patent: 43 25 560 (1994-02-01), None

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