Optical device and vehicle equipped with the same

A vehicle comprising:

• a vehicle body;
• a lamp structure positioned on a front surface of the vehicle body;
• and
• an optical device embedded in the lamp structure,
• wherein the optical device includes:
• a light source array outputting a light;
• a first lens assembly disposed in front of the light source array and emitting light incident from the light source array frontwards thereof;
• a second lens assembly disposed in front of the first lens assembly and emitting light incident from the first lens assembly frontwards thereof;
• and
• a light emitting lens forming a beam pattern using light incident from the second lens assembly,
• wherein the first lens assembly includes a plurality of collimator lenses corresponding to the light source array,
• wherein each of the plurality of collimator lenses includes an aspherical emission surface protruding convexly frontwards,
• wherein a pitch between adjacent two collimator lenses positioned at a center among the plurality of collimator lenses is equal to or greater than a reference value, and
• wherein the pitch between the adjacent two collimator lenses positioned at the center among the plurality of collimator lenses is greater than a pitch between adjacent two collimator lenses positioned at each of first and second edges in a left and right direction.