High Efficiency 3-Way Halogen Lamp With Single Filament Microprocessor Driven Light Sources
AssigneeOsram Sylvania Inc.
InventorsErnest C. Weyhrauch, James E. Oetken, George B. Kendrick
Life of this patent
Estimating the term…
Loading patent…
AssigneeOsram Sylvania Inc.
InventorsErnest C. Weyhrauch, James E. Oetken, George B. Kendrick
Estimating the term…
A 3-way halogen lamp selectively generates a first light level, second light level, and third light level based on whether a first terminal on the lamp base and a second terminal on the lamp base are connected to a power supply. A controller housed entirely within the based detects whether the first and second terminals are connected to the power supply, and generates a control signal as a function thereof. A switching circuit housed entirely within the base is operated by the control signal to provide a voltage load signal having a particular RMS voltage. A single filament halogen capsule is attached to the base and connected to the switching circuit for receiving the voltage load signal and generating the first light level, second light level, and third light level when the voltage signal has a first RMS voltage, a second RMS voltage, and a third RMS voltage, respectively.
A lamp (100;
Dependencies are inferred from the claim text.