CPC G02B 6/0076 (2013.01) [F21K 9/61 (2016.08); F21S 8/026 (2013.01); F21V 7/0091 (2013.01); G02B 6/0018 (2013.01); G02B 6/0021 (2013.01); G02B 6/0031 (2013.01); G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0038 (2013.01); G02B 6/0046 (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)] | 18 Claims |
1. An optical waveguide, comprising:
a first waveguide stage comprising:
a first light coupling surface configured to receive light from a light source;
a first light transmission portion; and
a first light extraction portion; and
a second waveguide stage adjacent to and separate from the first waveguide stage, the second waveguide stage comprising:
a second light coupling surface at least partially aligned with the first light coupling surface;
a second light transmission portion; and
a second light extraction portion;
wherein the first and second waveguide stages are configured to provide beam angles in a range of between 10 degrees and 60 degrees.
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