Energy saving HID lamp
AssigneeArticmaster Inc.
InventorCass Khoo
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Abstract
An energy saving HID lamp with a long lifespan is provided. In an embodiment of the invention, the lamp comprises at least two arc tubes within a quartz enclosure wherein each of the arc tubes has a tungsten cathode tip, an anode and xenon gas between the two electrodes. Only one arc tube is illuminated each time the power is switched on. A control system connected to the ballast circuitry provides dimming up to 50% of the total power of the lamp. Further a motion sensor and a preset timer positioned within the control system provide added energy savings and make the lamp highly suitable for street lighting, public parking and such purposes. The igniter is positioned at the base of the lamp so that the ballast can be located at a convenient location for easy servicing and handling.
Claims11
A HID lamp comprising:
- at least two arc tubes positioned inside a quartz enclosure, each comprising a cathode, anode and a mixture of gases;
- a lamp base;
- an igniter positioned within the base;
- a ballast connected to the lamp;
- a control system connected to the lamp and the ballast;
- said system designed to control the light intensity.
Dependencies are inferred from the claim text.