Abstract: A light source device which can prevent the removal of light source elements of a light source device within a projector casing, a projector and a light source fabrication method are provided. An excitation light shining device 70 has a lens holding structure 79 and a light source holding structure 80 which are integrated together with excitation light sources held therebetween. The lens holding structure 79 has through holes 79f which first screw members 84 penetrate, and the light source holding structure 80 has screw holes 80h and screw holes 80k communicating with the screw holes 80h substantially at right angles. With the first screw members 84 penetrating the through holes 79f to be screwed into the screw holes 80h, screw thread portions of the first screw members 84 are pressed to be deformed plastically by distal end portions of the second screw members 85.

Abstract: A protector is provided which can prevent the leakage of light from a light source lamp to the outside of the projector and which can discharge air that has cooled a light source unit to the outside of the projector with a small ventilation resistance. A light source compartment storing a light source unit according to the invention includes a light source storing section which is defined by partitioning walls which surround the light source unit, an air inlet port which is provided in part of the partitioning walls to let in air discharged from a cooling fan and a rotatable light shielding member having a plurality of vane portions on a rotational shaft thereof which is provided in an air outlet port formed in part of the partitioning walls to let out air.

Abstract: A protector is provided which can prevent the leakage of light from a light source lamp to the outside of the projector and which can discharge air that has cooled a light source unit to the outside of the projector with a small ventilation resistance. A light source compartment storing a light source unit according to the invention includes a light source storing section which is defined by partitioning walls which surround the light source unit, an air inlet port which is provided in part of the partitioning walls to let in air discharged from a cooling fan and a rotatable light shielding member having a plurality of vane portions on a rotational shaft thereof which is provided in an air outlet port formed in part of the partitioning walls to let out air.