Patent ID: 8644658

Claim:
A light transmission system, comprising: a light guide support comprising a first surface, a second surface perpendicular to the first surface, a hollow space formed between the first surface and the second surface, and an inner reflecting surface forming an angle of 45 degrees relative to the first surface; a first convex lens formed on the first surface, and configured for receiving and converging a light to the inner reflecting surface; an optical waveguide member received in the hollow space, the optical waveguide member comprising a substrate and a planar optical waveguide formed in the substrate, the planar optical waveguide comprising a main section parallel with the first surface, two first branch sections extending from the main section, and two second branch sections extending from the respective first branch sections, the main section configured for receiving reflected light from the inner reflecting surface, the first branch sections forming equal angles relative to the main section, the second branch sections being parallel with the main section; and two second convex lenses formed on the second surface and aligned with the respective second branch sections.