Illumination system and projection apparatus

A projection apparatus, comprising:

• an illumination system, configured to provide an illumination light beam and comprising a light source module and a first dichroic mirror, wherein
• the light source module comprises a first light source and a second light source;
• each of the first light source and the second light source is configured to provide a first color light, a second color light, and a third color light, and
• the first dichroic mirror is disposed on transmission paths of the first color light, the second color light, and the third color light, the first dichroic mirror is configured to allow the first color light and the second color light to transmit along a first direction and to allow the third color light to transmit along a second direction, where the first direction is perpendicular to the second direction;
• a light valve, disposed on a transmission path of the illumination light beam and configured to convert the illumination light beam into an image light beam;
• and
• a projection lens, disposed on a transmission path of the image light beam and configured to project the image light beam out of the projection apparatus.