Patent ID: 7489840

Claim:
A method for connecting, by deflection, a plurality of parallel light beams from light emitting devices to light receiving parts corresponding to the respective light beams, the method comprising the steps of: arranging light emitting devices in a planar manner; generating a plurality of light beams from the light emitting devices by using a light source chosen from the group consisting of laser diodes and light emitting diodes; forming the light receiving parts from either of the ends of optical fibers or the light receiving surfaces of photodiodes, wherein a time delay of a light beam before reaching the light receiving part can be set to be equal among the plurality of light beams; receiving the light beams from the light emitting devices into optical waveguides; forming an optical turn from a plurality of aspherical lenses in accordance with the number of the light emitting devices and the number of the optical waveguides; disposing the optical turn between the light emitting devices and the optical waveguides; and deflecting the light beams between the light emitting devices and the optical waveguides using the optical turn to generate refractions with different curvatures by using the aspherical lenses corresponding to the light beams from the light emitting devices, taking an optical axis of each aspherical lens as a center and reflecting the light beams undergoing the refractions with the different curvatures using the corresponding aspherical lenses.