LED burning prevention
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 28, 2006
Grant Date -
Aug 11, 2005
app pub date -
Feb 8, 2005
filing date -
Feb 9, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a flame resistant LED construction. The flame resistant LED construction of this embodiment comprises a substrate, one or more LEDs that emits light mounted on the substrate, and an intumescent material adjacent to the LEDs. The positioning of the intumescent material is such that at least a portion of the light emitted from the LEDs is unobstructed. Moreover, a sufficient amount of the intumescent material is in proximity to the LEDs that a flame on the LEDs is extinguished by the expansion of the intumescent material. The present invention also provides an LED construction in which a sufficient amount of the intumescent material is in proximity to the LEDs such that a temperature greater than or equal to about 250° F. causes the intumescent material to expand and form an insulating char which at least partially encompasses the one or more LEDs. Also provide by the invention is a method for making the LED construction of the invention.
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