| 摘要 |
[Object] To provide a light source unit, a light source apparatus, and an image display apparatus that are capable of facilitating the cooling of a light source and the handling of light. [Solving Means] A light source unit according to an embodiment of the present technology includes one or more solid-state light sources and a light collecting optical system. The one or more solid-state light sources are arranged on a rear side of an output portion and each output light in a predetermined wavelength range along the same direction as an optical-axis direction, the output portion including a light emitter that is excited by the light in the predetermined wavelength range with a predetermined direction as the optical-axis direction to emit visible light in a wavelength range longer than the predetermined wavelength range and is capable of outputting light containing the light in the predetermined wavelength range and the visible light from the light emitter along the optical-axis direction. The light collecting optical system collects the light in the predetermined wavelength range, the light being output from the one or more solid-state light sources, onto the light emitter from the rear side of the output portion. |
