Projection apparatus

A projection apparatus comprising a casing, a projection lens, a first light source module, a second light source module, a first thermal module, a second thermal module, a first fan, and a second fan, wherein:

• the casing comprises a bottom cover, a front cover, a rear cover opposite to the front cover, a first side cover, and a second side cover opposite to the first side cover, wherein the front cover, the rear cover, the first side cover, and the second side cover are disposed around the bottom cover and define an internal space,
• the projection lens is disposed in the casing, wherein the bottom cover has a first air inlet connected to the internal space and corresponding to the projection lens, the first air inlet is located between the front cover and the rear cover, and an extension line of an optical axis of the projection lens divides the internal space into a first area and a second area, wherein the rear cover has a second air inlet connected to the first area, and the first side cover has a first air outlet connected to the first area, and
• the first light source module, the second light source module, the first thermal module, the second thermal module, the first fan, and the second fan are disposed in the first area, wherein the first light source module is thermally coupled to the first thermal module, the first thermal module is located between the first air inlet and the first fan, and the first fan is located between the first thermal module and the first air outlet, wherein the second light source module is thermally coupled to the second thermal module, the second thermal module is located between the second air inlet and the second fan, and the second fan is located between the second thermal module and the first air outlet.