Light source module, method of manufacturing light source module, and projection-type display unit

A method of manufacturing a light source module, the method comprising:

• disposing a plurality of light-emitting elements on a radiator;
• disposing a plurality of lenses each of which converts a light beam outputted from corresponding one of the plurality of light-emitting elements into a collimated light beam and output the collimated light beam;
• disposing a plurality of first optical elements that each reflect the collimated light beam outputted from corresponding one of the plurality of lenses while adjusting an optical axis direction of the collimated light beam;
• and
• disposing a second optical element that multiplexes respective light beams reflected from the plurality of first optical elements.

A projection-type display unit provided with a light source module and a projection optical system that projects a light beam from the light source module, the light source module comprising:

• a radiator;
• a plurality of light-emitting elements disposed on the radiator;
• a plurality of lenses each of which converts a light beam outputted from corresponding one of the plurality of light-emitting elements into a collimated light beam and output the collimated light beam;
• a plurality of first optical elements that each reflect the collimated light beam outputted from corresponding one of the plurality of lenses while adjusting an optical axis direction of the collimated light beam;
• and
• a second optical element that multiplexes respective light beams reflected from the plurality of first optical elements.