Optical system utilizing LED illumination for a light bar, and light bar having same
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United States of America Patent
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Apr 25, 2017
Issued Date -
N/A
app pub date -
Aug 14, 2014
filing date -
Aug 15, 2013
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Abstract
An optical system is provided having a first optical element for directing LED light received outwards, and two second optical elements each disposed to receive a portion of the light from a different one of two opposing ends of the first optical element so that the second optical elements redirects such portion of the light received outwards. Light from the optical system is preferably collimated along a first dimension, and non-collimated along a second dimension perpendicular to the first dimension. The first optical element and second optical elements are disposed in an integrated structure to facilitate mounting of the optical system upon a circuit board having LEDs which provide light to the first optical element. A light bar is also provided having multiple sets of LEDs on circuit boards, where each set provides light to a different one of the optical systems.
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