Alighting device, comprising: a base substrate transmitting an incident beam emitted by a light source, said base substrate being provided in a plate or film form and having a first surface and a second surface opposite to said first surface; and a three-dimensional effect forming part on said first surface of the base substrate, wherein the three-dimensional effect forming part has a pattern formed on a surface thereof opposite said first surface of said base substrate, the pattern having multiple pattern units, each of the pattern units having an inclined surface having an inclination angle with respect to the first surface, wherein the base substrate is a resin layer, and the three-dimensional effect forming part is provided as a pattern layer bonded to the first surface of the base substrate, wherein the pattern units have a semicircular shape and are distributed in a radial form from the same center, and wherein the base substrate comprises an incident surface which refers to a side that is concavely formed in a semicircular shape from one side of the base substrate, wherein a side of the light source faces to the incident surface of the base substrate, so that when the incident beam emitted by a light source disposed in the center of the pattern toward the incident surface is irradiated from the incident surface to the inside of the base substrate, the pattern guides the incident beam outside of the device in a first surface direction toward which the first surface looks or a second surface direction toward which a second surface opposite to the first surface looks, using refraction or reflection from the inclined surface, thereby displaying a line-shaped beam having a perceptional depth changing effect in a pattern arrangement direction. a base substrate transmitting an incident beam emitted by a light source, said base substrate being provided in a plate or film form and having a first surface and a second surface opposite to said first surface; and a three-dimensional effect forming part on said first surface of the base substrate, wherein the three-dimensional effect forming part has a pattern formed on a surface thereof opposite said first surface of said base substrate, the pattern having multiple pattern units, each of the pattern units having an inclined surface having an inclination angle with respect to the first surface, wherein the base substrate is a resin layer, and the three-dimensional effect forming part is provided as a pattern layer bonded to the first surface of the base substrate, wherein the pattern units have a semicircular shape and are distributed in a radial form from the same center, and wherein the base substrate comprises an incident surface which refers to a side that is concavely formed in a semicircular shape from one side of the base substrate, wherein a side of the light source faces to the incident surface of the base substrate, so that when the incident beam emitted by a light source disposed in the center of the pattern toward the incident surface is irradiated from the incident surface to the inside of the base substrate, the pattern guides the incident beam outside of the device in a first surface direction toward which the first surface looks or a second surface direction toward which a second surface opposite to the first surface looks, using refraction or reflection from the inclined surface, thereby displaying a line-shaped beam having a perceptional depth changing effect in a pattern arrangement direction.