Laser light source

摘要

A laser light source is provided which uses a plurality of semiconductor laser devices and which offers adequate heat dissipation. The laser light source using a plurality of semiconductor laser devices (1013) includes a holding member (1015) on which the plurality of semiconductor laser devices is arranged, wherein at least one semiconductor laser device (1131) among the plurality of semiconductor laser devices is arranged on the holding member (1015) such that a relative position (A) of the semiconductor laser device (1131) in an optical axis direction (X1) with respect to an adjacent semiconductor laser device (1132) in a front view of the holding member is greater than a relative position (B) of the semiconductor laser device in a direction perpendicular to the optical axis direction (X1) with respect to the adjacent semiconductor laser device (1132).