A projection apparatus, comprising: a light source configured to provide an illumination beam; a light reflective member configured to reflect the illumination beam; a light valve configured to convert the illumination beam reflected by the light reflective member into an image beam; and a light beam adjusting member optically coupled between the light source and the light reflective member and comprising a collimating lens module, the collimating lens module having a light entering surface and a light leaving surface at opposite sides thereof, wherein the light beam adjusting member further comprises: a light homogenizing module between the light source and the collimating lens module, the projection apparatus being characterized in that the light entering surface and the light leaving surface respectively have a first optical axis and a second optical axis extending along different directions, wherein the first optical axis passes through the center of the light entering surface and is perpendicular to the light entering surface, and wherein the second optical axis passes through the center of the light leaving surface and is perpendicular to the light leaving surface, the light homogenizing module having a third optical axis, wherein an angle between the first optical axis and the third optical axis is different from an angle between the second optical axis and the third optical axis, wherein the collimating lens module is configured to narrow the illumination beam propagating from the light homogenizing module. a light source configured to provide an illumination beam; a light reflective member configured to reflect the illumination beam; a light valve configured to convert the illumination beam reflected by the light reflective member into an image beam; and a light beam adjusting member optically coupled between the light source and the light reflective member and comprising a collimating lens module, the collimating lens module having a light entering surface and a light leaving surface at opposite sides thereof, wherein the light beam adjusting member further comprises: a light homogenizing module between the light source and the collimating lens module, the projection apparatus being characterized in that the light entering surface and the light leaving surface respectively have a first optical axis and a second optical axis extending along different directions, wherein the first optical axis passes through the center of the light entering surface and is perpendicular to the light entering surface, and wherein the second optical axis passes through the center of the light leaving surface and is perpendicular to the light leaving surface, the light homogenizing module having a third optical axis, wherein an angle between the first optical axis and the third optical axis is different from an angle between the second optical axis and the third optical axis, wherein the collimating lens module is configured to narrow the illumination beam propagating from the light homogenizing module. a light homogenizing module between the light source and the collimating lens module, the projection apparatus being characterized in that the light entering surface and the light leaving surface respectively have a first optical axis and a second optical axis extending along different directions, wherein the first optical axis passes through the center of the light entering surface and is perpendicular to the light entering surface, and wherein the second optical axis passes through the center of the light leaving surface and is perpendicular to the light leaving surface, the light homogenizing module having a third optical axis, wherein an angle between the first optical axis and the third optical axis is different from an angle between the second optical axis and the third optical axis, wherein the collimating lens module is configured to narrow the illumination beam propagating from the light homogenizing module.