Patent ID: 8540397

Claim:
A lighting apparatus using light emitting diodes, comprising: a lamp housing member that has a circular upper plate and a side portion formed at an outer circumference of the upper plate; light emitting diode modules that are provided on an inner surface of the side portion; and a plurality of angle adjusting blocks, wherein the plurality of the angle adjusting blocks are inserted between the light emitting diode modules and the inner surface of the side portion, wherein the plurality of the angle adjusting blocks are mounted detachably to the inner surface of the side portion and respectively have inclined planes so as to adjust mounting angles of the light emitting diode modules in lateral and vertical directions, wherein the plurality of the angle adjusting blocks include three-stage blocks each having an upper inclined portion, a middle inclined portion, and a lower inclined portion that are inclined at different angles or two-stage blocks each having an upper inclined portion and a lower inclined portion that are inclined at different angles, wherein the angle adjusting blocks are mounted on the inner surface of the side portion of the lamp housing member at intervals in a state where at least one light emitting diode module is mounted on the inclined plane, wherein some of the plural angle adjusting blocks that are mounted on the inner surface of the side portion of the lamp housing member are different from each other in the number of the light emitting diode modules and in the mounting angles of the light emitting diode modules, and wherein the angle adjusting blocks that have the same number of the light emitting diode modules and the same mounting angle are symmetrically formed on a reference line passing through the center of the lamp housing member at a point where the lamp housing member is mounted to an arm member of the lamp post.