Patent attributes
An illumination system, a projection apparatus, and a projection method of the projection apparatus are provided. The illumination system includes an excitation light source, a light combination element, a reflection element, a light wavelength conversion module, and an actuator. The reflection element is disposed on a transmission path of an excitation beam transmitted from the light combination element. The light wavelength conversion module having at least one reflection area and at least one light conversion area is disposed on a transmission path of an excitation beam transmitted from the reflection element. The actuator is coupled to the light wavelength conversion module to shift the light wavelength conversion module relative to the transmission path of the excitation beam transmitted from the reflection element, such that the at least one reflection area and the at least one light conversion area move to the transmission path of the excitation beam transmitted from the reflection element in turns.