Abstract: An external lighting apparatus delivers various messages through selective lighting by applying a lighting function to the exterior of a vehicle. The apparatus includes a light source module with a plurality of light sources and a light guide in which light emitted from the light sources is incident. The light guide reflects the incident light so that the light travels in different areas. The apparatus has a light cover composed of a plurality of transmission parts into which the light, travelling in different areas via the light guide, is incident. The light is emitted to different lighting areas through each transmission part to create a plurality of illumination images.

Abstract: An external lighting apparatus delivers various messages through selective lighting by applying a lighting function to the exterior of a vehicle. The apparatus includes a light source module with a plurality of light sources and a light guide in which light emitted from the light sources is incident. The light guide reflects the incident light so that the light travels in different areas. The apparatus has a light cover composed of a plurality of transmission parts into which the light, travelling in different areas via the light guide, is incident. The light is emitted to different lighting areas through each transmission part to create a plurality of illumination images.

Abstract: An optical disc unit for an ultraviolet sterilizer, which is applied to the ultraviolet sterilizer, includes an ultraviolet light emitting diode (LED) to reflect light irradiated from the ultraviolet LED, including a body portion including a hollow and a primary optical unit fixedly coupled to an internal diameter surface in the hollow of the body portion and disposed in a direction perpendicular to an emission surface of the ultraviolet LED to reflect light irradiated from the ultraviolet LED, and according to an exemplary embodiment of the present disclosure, it is possible to enhance a sterilization ability by increasing a beam angle of light irradiated from the ultraviolet LED and uniformly irradiating the light and also reduce a risk of light leakage to the outside in a space to which the ultraviolet LED is applied.

Abstract: A light cylinder, a dispenser, and a method of manufacturing a light cylinder are disclosed. The light cylinder includes an outer layer and an inside layer, where the inside layer is formed by filling optical resin into the inside space of the outer layer, and the refractive index of the optical resin is determined in consideration of the refractive index of the outer layer.