Patent ID: 8393758

Claim:
A laser light source device comprising: a light source unit that emits laser light; an optical axis adjusting unit that adjusts an optical axis of the laser light emitted from the light source unit; and a mounting member on which the optical axis adjusting unit is mounted, wherein the optical axis adjusting unit includes an adjustment mechanism for adjusting the positions of a lens, which is disposed on a light path, in X- and Y-axis directions that are orthogonal to each other in a plane orthogonal to the optical axis, and the adjustment mechanism includes an X-axis moving part that is movable in the X-axis direction, a Y-axis moving part that is moved together with the X-axis moving part as a single body and is movable in the Y-axis direction, X-axis adjusting means that is provided at the X-axis moving part and adjusts the position of the lens in the X-axis direction by coming into elastic contact with a part of the mounting member so as to lock the X-axis moving part, and Y-axis adjusting means that is provided at the Y-axis moving part and adjusts the position of the lens in the Y-axis direction by coming into elastic contact with a part of the X-axis moving part so as to lock the Y-axis moving part.