Light source unit that includes a luminescent material, a primary light source that emits light to excite the luminescent material, and a secondary light source, and projector

摘要

To provide a light source unit which can increase luminance and a projector including this light source unit. This light source unit includes a luminous wheel having a segment area on which a luminescent material layer is formed which emits light of a predetermined wavelength band by receiving light, and a segment area which is made into a transmission portion which transmits light, a primary light source which shines light of a visible wavelength band on to the luminous wheel, a secondary light source which emits light of a wavelength band which is different from light from the luminescent material layer and light from the primary light source, a collective optical system which collects light from the luminous wheel and the secondary light source to cause them to converge to the same optical path, and a light source control device which controls the emission of light from the light sources.