Patent ID: 8853711

Claim:
A semiconductor light emitting device, comprising: a structural body including a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer; a first electrode layer provided on a side of the second semiconductor layer opposite to the first semiconductor layer, the first electrode layer including a metal portion and a plurality of opening portions piercing the metal portion along a direction from the first semiconductor layer toward the second semiconductor layer, an equivalent circular diameter of each of the opening portions being not less than 10 nanometers and not more than 5 micrometers; an intermediate layer provided between the second semiconductor layer and the first electrode layer in ohmic contact with the second semiconductor layer; and a second electrode layer electrically connected to the first semiconductor layer; wherein the equivalent circular diameter of the opening portion is not more than about ½ of the center wavelength of a light emitted from the light emitting layer.