초록 ▼

A self-emission road device includes light emitting elements and a power unit, and has the light emitting elements emit light through a light emitting face of a protective board set at an upper part of the self-emission road device. For each light emitting face, four emission units are provided. Out

A self-emission road device includes light emitting elements and a power unit, and has the light emitting elements emit light through a light emitting face of a protective board set at an upper part of the self-emission road device. For each light emitting face, four emission units are provided. Out of the four emission units, two emission units are designed for a straight road and light beams from these emission units are emitted in a direction whose horizontal component is perpendicular to the light emitting face. Two other emission units are designed for a curve and light beams from these emission units are emitted in a direction whose horizontal component forms a predetermined angle with the direction whose horizontal component is perpendicular to the light emitting face. The emission units for the straight road and curve are set in alternate order. When the emission units for the curve are provided for two light emitting faces that are diametrically opposite to each other, the light beams passing through the two different light emitting faces are emitted in the respective directions tilting toward the same side.

대표청구항 ▼

[What is claimed is:] [1.]a main body which has an opening at a top;an emission unit which is set at an upper part of the main body and emits at least three light beams over a road; anda top board which is set covering the opening of the main body, and has an emission window that is transparent with

[What is claimed is:] [1.]a main body which has an opening at a top;an emission unit which is set at an upper part of the main body and emits at least three light beams over a road; anda top board which is set covering the opening of the main body, and has an emission window that is transparent with the light beams from the emission unit passing through the emission window and being emitted to an outside,wherein emitting directions in which the light beams are emitted through the emission window include at least first and second directions, andwherein at least two light beams, out of the light beams emitted to the outside through the emission window, are emitted in a same direction and a light beam emitted in a different direction is situated between two light beams emitted in the same direction.