LED device for wide beam generation and method of making the same
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United States of America Patent
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Apr 30, 2013
Grant Date -
Sep 23, 2010
app pub date -
May 19, 2008
filing date -
May 21, 2007
priority date (Note) -
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Abstract
A predetermined illuminated surface pattern is generated from a predetermined energy distribution pattern of an LED light source within an LED package having a light transmitting dome. An estimated optical transfer function of a lens shape of an optic is defined by the shape of an exterior and inner surface which envelopes at least in part the light transmitting dome of the LED package. An energy distribution pattern is obtained by combination of the estimated optical transfer function and the predetermined energy distribution pattern of the light source. A projection of the energy distribution pattern onto the illuminated surface is determined. The projection is compared to the predetermined illuminated surface pattern. The estimated optical transfer function is illuminated surface pattern.
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