A light source apparatus includes: a primary light source module (6) including a primary light source (10) for emitting primary light a light conversion module (8) including a light conversion unit (30) for converting optical properties of the primary light emitted from the primary light source, to generate secondary light a light guide path (20), arranged between the primary light source module and the light conversion module, for guiding the primary light emitted from the primary light source to the light conversion module from the primary light source module a first connecting portion (40) for detachably connecting the light conversion module with the light guide path and a second connecting portion (50) for detachably connecting the primary light source module with the light guide path.
