Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Plural circuit elements
Reexamination Certificate
2007-05-29
2007-05-29
Tran, Thuy Vinh (Department: 2821)
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Plural circuit elements
C315S308000, C315SDIG002
Reexamination Certificate
active
11139161
ABSTRACT:
A lamp package includes a base for insertion into an electrical socket, a complete dimmable ballast circuit contained within and electrically connected to the base, and a fluorescent lamp, including a CFLP, connected to and dimmed through the ballast circuit. The base includes a thermally conductive body, such as an epoxy, so that the base dissipates heat from the ballast. The package also includes a diffuser, possibly connected directly to the base, that surrounds the lamp. In a further aspect of the invention, the lamp package includes one or more of a variety of sensors, such as a photodetector, that are connected to the dimmable ballast circuit, thereby providing a self-dimming lamp. The self-dimming lamp is suitable for use in a standard Edison socket and with CFLPs to provide a self-regulated light output. Various lighting schemes may be incorporated into the dimmable ballast circuit, such as regulated light output applications.
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