There is provided a light emitting device in this invention comprises a light source for supplying light, and plural light scattering devices disposed in front of the light source so as to be opposite to the direction of the light. Each of the light scattering devices comprises at least one striated surface forming plural prisms. The light is scattered by means of the prisms of the light scattering devices. This invention enables a light emitting device to achieve the spread of light with comparatively little light clustering. In particular, the light emitted from a local source can be changed from being directional to being non-directional even in case of use of the LED's source of light which is directional and so on. Therefore, the light emitting device pertaining to this invention is suitably adopted for use in the display of guardrails on the road. Moreover, in the case of using LED elements as the source of light, since LED's have a long lifetime and low power consumption, the device can be provided using a solar battery as a power source, thereby eliminating the trouble of battery replacement. Moreover, the adoption of the LED makes it easy to obtain the required power from a battery, and to eliminate defects such as broken wires caused by vehicular traffic, because conventional electric wires for supplying power are not required. Therefore, for example, the light emitting device with regard to this invention is suitable for use as an alarm light at construction sites.