Optical waveguide

摘要

One example relates to an optical engine comprising an optical waveguide. The optical waveguide can comprise a total internal reflection (TIR) edge to change direction of an optical light beam to an angle parallel to a top surface and a bottom surface of the optical waveguide. The optical waveguide can also comprise a plurality of aligning holes extending from the top surface to the bottom surface of the optical waveguide. The optical engine can comprise a substantially transparent slab underlying the optical waveguide. The slab can also comprise a micro lens to collimate the optical light beam. The slab can further comprise a plurality of aligning pins extending perpendicular from a top surface and bottom surface of the slab. Each of the plurality of aligning pins can extend through a respective one of the plurality of aligning holes.

主权项

1. An optical engine comprising:
an optical waveguide comprising:
a total internal reflection (TIR) edge to change direction of an optical light beam to an angle parallel to a top surface and a bottom surface of the optical waveguide; anda plurality of aligning holes extending from the top surface to the bottom surface of the optical waveguide; a substantially transparent slab underlying the optical waveguide, the slab comprising:
a micro lens to collimate the optical light beam; anda plurality of aligning pins extending perpendicular to a top surface and a bottom surface of the slab, each of the plurality of aligning pins to extend through a respective one of the plurality of aligning holes, such that the optical waveguide is positioned such that the TIR edge of the optical waveguide overlays the micro lens; an optical element to receive or provide the optical light beam; and an optical connector mechanically fastened to an end of the optical waveguide distal to the TIR edge of the optical waveguide.