Invention Grant
US09568662B2 Optical waveguide body 有权
光波导体

Optical waveguide body
Abstract:
An optical waveguide body includes first and second pluralities of light extraction features disposed on a first side of the waveguide body and adapted to direct light out of the waveguide body through a second side of the waveguide body opposite the first side. Each of the first plurality of light extraction features has a linear shape and each of the second plurality of light extraction features has at least one of a piecewise linear shape and a nonlinear shape. The piecewise linear shape comprises two adjacent planar surfaces with an angle therebetween of at least about 30 and at most about 180 degrees. The waveguide body further has a light coupling cavity.
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