Methods and apparatus for illuminating an area
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Feb 14, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Abandoned
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Abstract
A light source for illuminating an area includes a cold cathode light source, and input and an output, and a converter coupled to the light source. The converter changes the current from an input alternating current supply to a lamp alternating current supply suitable for operating the lamp, for example from utility line voltage and current and changing it to an oscillating direct current supply. A display case such as a refrigeration unit may include an alternating current supply and a light source for illuminating an area within the display case. A current converter is coupled between the alternating current supply and the light source for changing the current from the supply at one voltage and frequency to a second voltage and a second frequency. In one preferred form, the light source is a cold cathode lamp at about 8500 Kelvin to include more blue light.
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