Patent ID: 8820943

Claim:
A projection apparatus comprising: a first optical system including first lenses; an aperture disposed on the light exiting-side of the first optical system; a second optical system including second lenses, the second optical system being disposed on the light exiting-side of the aperture; and a reflector disposed on the optical path between the first optical system and the second optical system, the reflector having a reflection surface that reflects projection light having exited from the first optical system toward the second optical system, wherein the optical axis of the second optical system is disposed along the optical axis of the first optical system, the first optical system as a whole has a light-converging effect, the reflection surface of the reflector is disposed along the optical axis of the first optical system, and in at least part of the first lenses and in at least part of the second lenses, a surface of the lenses that is located at a side opposite to the reflection surface of the reflector is cut off from the projection light.