Patent ID: 7492804

Claim:
A light emitting device, comprising: a wave guiding unit arranged on a base of the light emitting device and configured to propagate an electromagnetic wave; an emitting unit arranged on the base and configured to emit near-field light from propagated electromagnetic wave; and an outlet from which the near-field light is output, wherein the emitting unit includes a deflecting unit configured to deflect the propagated electromagnetic wave toward the base; and a propagating unit arranged between the deflecting unit and the base, and configured to generate a surface-propagating wave from deflected electromagnetic wave, to output the near-field light from the outlet, the outlet is arranged at an end of the propagating unit on a side opposite to the wave guiding unit, and the propagating unit is formed to extend over in a direction substantially parallel to a plane of the base so that the near-field light outputs in a direction substantially parallel to the plane.