LIGHTING METHOD FOR AN LED LIGHTING APPARATUS
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United States of America Patent
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app pub date -
Apr 4, 2014
filing date -
Oct 5, 2011
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Abandoned
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Abstract
The present invention relates to a lighting method for an LED lighting apparatus, in which e.g. an LED for illuminating an edge of a light distribution pattern far away from a street lamp has a relatively larger illumination angle and a smaller radiation angle, and an LED for illuminating the center of a light distribution pattern near the street lamp and an edge of a light distribution pattern adjacent to the street lamp has a relatively smaller illumination angle and a smaller radiation angle. Thus, each LED illuminates different areas of the road, thereby ensuring the uniformity of illumination of an overall light distribution pattern.
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