CPC F21S 8/088 (2013.01) [F21S 8/086 (2013.01); F21V 5/00 (2013.01); F21V 21/116 (2013.01); G02B 6/0006 (2013.01); G02B 6/0016 (2013.01); G02B 6/0021 (2013.01); G02B 6/0031 (2013.01); G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0045 (2013.01); G02B 6/0055 (2013.01); G02B 6/24 (2013.01); G02B 6/262 (2013.01); G02B 6/305 (2013.01); G02B 6/32 (2013.01); G02B 6/34 (2013.01); F21V 29/51 (2015.01); F21W 2131/103 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] | 20 Claims |
1. A lighting device, comprising:
a housing;
a light emitter disposed in the housing; and
a waveguide at least partially disposed in an opening of the housing and comprising:
a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features;
a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion; and
the light extraction portion comprising at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device, the light extraction portion positioned to extract a redirected portion of light received from at least one light deflection surface of the light transmission portion, and positioned to receive a non-redirected portion of light received from the light transmission portion.
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