A mixed light apparatus for mixing light emitted from a first light source and a second light source includes a body, a first light reflecting element, a second light reflecting element and a field lens. The body has a light emitting surface. A first reflecting element extends from the light emitting surface. The first light reflecting element has a first emanating point and a first focal point. The first light source is disposed at the first focal point. A second light reflecting element extends from the light emitting surface. The second light reflecting element has a second emanating point and a second focal point. The second light source is disposed at the second focal point. The first emanating point and the second emanating point overlap at the light emitting surface. The field lens is disposed on the light emitting surface and corresponds to the first and second emanating points.