LED source with hollow collection lens
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United States of America Patent
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Sep 25, 2012
Grant Date -
Oct 6, 2011
app pub date -
Jun 14, 2011
filing date -
Jul 31, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A light source, includes an LED emitter and a meniscus lens having a hollow cavity in which the LED emitter is disposed. The meniscus lens is in exemplary embodiments hyperhemispheric, and it produces a high quality optical image of the LED emitter. The cavity of the lens is filled with air, such as terrestrial atmosphere, inert gas, or vacuum.
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