Patent ID: 8636382

Claim:
A light source apparatus, comprising: a light source unit in which plural light sources are aligned on one surface of a board; a support plate that supports the light source unit; and a support means for supporting the light source unit that is slidable along one surface of the support plate, wherein the support plate comprises an opening, the light source unit comprises a stopper that is stopped by the opening, and the light source unit is slidable along an aligned direction of the light sources, wherein the support means comprises: openings that are formed at the board and the support plate, respectively; and an axial fall preventer that is inserted into the openings, and the axial fall preventer makes the light source unit become movable in a direction along said one surface of the support plate and prevents the light source unit from falling out, and wherein the axial fall preventer comprises: a flexible column that has a small diameter head portion at one side of the flexible column, and a flexible portion at other side of the flexible column which can be distorted in a radial direction; and a pin that has a large diameter head portion opposed in a longitudinal direction to the small diameter head portion at one end of the pin, and makes the flexible portion be distorted when inserted into the flexible column.