Light source module and projection apparatus

A projection apparatus, comprising:

• a light source module, comprising:
• a light-emitting element, adapted to emit a first color beam;
• an optical path switching element, disposed on a propagating path of the first color beam, and the optical path switching element switching the first color beam between a first optical path and a second optical path;
• a wavelength conversion element, disposed on the first optical path, and comprising a first wavelength conversion layer and a second wavelength conversion layer, wherein the first wavelength conversion layer and the second wavelength conversion layer are switched to the first optical path in alternation;
• a first reflection element, disposed on the second optical path, wherein when the first color beam is switched to the first optical path by the optical path switching element, the first color beam respectively excites the first wavelength conversion layer and the second wavelength conversion layer to produce a second color beam and a third color beam, and when the first color beam is switched to the second optical path by the optical path switching element, the first color beam is propagated to the first reflection element;
• and
• a first beam splitter element, disposed on a propagating path of the first color beam, the second color beam and the third color beam, the first beam splitter element is adapted to reflect the second color beam and the third color beam, and be passed by the first color beam;
• a light valve, disposed on the propagating path of the first color beam, the second color beam and the third color beam, and convert the color beams into an image beam;
• and
• a projection lens, disposed on a propagating path of the image beam.