Optical unit

[TASK] To form an integrated light distribution pattern in a uniform manner with a plurality of light sources. [MEANS OF SOLVING THE PROBLEM] In an optical unit, a plurality of light emitting modules is arranged such that light emitting surfaces 22a are separate from each other. A plurality of first lenses 30 is provided respectively corresponding to each of the plurality of light emitting modules. Each of the plurality of first lenses 30 condenses light radiated from the corresponding light emitting module so as to form a plurality of individual light source images A lined up in a row with edge portions thereof contacting each other on a predetermined virtual plane. A second lens projects the plurality of individual light source images A forward of a lamp. At a contact edge portion A1 that contacts an adjacent individual light source image A among the edge portions of the individual light source images A formed, each of the plurality of first lenses 30 condenses light radiated from an edge portion that is opposite the contact edge portion A1 with an optical axis of the first lens 30 interposed therebetween among edge portions of the light emitting surface 22a of the corresponding light emitting module.