Lamp with two light sources

Details Lamp with two light sources Lamp with two light sources

H - Electricity

05

B

H05B 35/00 (2006.01) H01K 1/34 (2006.01) H01K 1/62 (2006.01) H05B 33/02 (2006.01)

Patent

CA 2554105

A lamp includes both a light-emitting filament and one or more light-emitting diodes (LEDs) on a lamp base. The LEDs may be electrically connected to the filament and receive their operating current through the filament so that the filament is the ballasting resistor for the LEDs. The filament may be in an incandescent or halogen lamp bulb and aligned along a longitudinal axis thereof, and the LEDs may be positioned on the lamp base symmetrically with respect to the longitudinal axis. The filament emits light of a first color temperature and at least one of the LEDs may emit light of a second color temperature higher than the first color temperature, where the symmetrical arrangement of the LEDs promotes a uniform color temperature of light from the lamp.

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