Light source device, projector, machining device, light source unit, and method for adjusting light source device

The invention provides a light source device, a projector, a machining device, a light source unit, and a method for adjusting the light source device, wherein the light source unit can be easily replaced when the light source unit needs to be replaced. A light source device (1) is provided with: a plurality of light source units (2) which are arranged in a two-dimensional array, each of the plurality of light source units (21) having a light-emitting element that emits laser light and a package that houses the light-emitting element, and a support plate (22) that supports the plurality of light source units (21); a base substrate (31) having a surface (311) on which the plurality of light source units (2) are arranged; and a fixing member (4) that detachably fixes the support plate (22) with respect to the base substrate (31). 本发明提供一种在需要更换光源单元的情况下，使其更换变得容易的光源装置、投影仪、机械加工装置、光源单元以及光源装置的调整方法。光源装置(1)具备：多个光源单元(2)，以二维阵列状排列，具有多个光源部(21)与支承板(22)，所述多个光源部(21)分别具有发射激光的发光元件与收纳发光元件的封装，所述支承板(22)支承多个光源部(21)；基底基板(31)，具有配置有多个光