Projection apparatus and image display apparatus having a reflector and an optical system with a cut off portion
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United States of America Patent
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Sep 2, 2014
Grant Date -
Oct 1, 2009
app pub date -
Feb 24, 2009
filing date -
Mar 28, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A projection apparatus includes a first optical system, an aperture disposed on the light exiting-side of the first optical system, a second optical system 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 the light having exited from the first optical system toward the second optical system. The optical axis of the second optical system is disposed along the optical axis of the first optical system. The reflection surface of the reflector is disposed along the optical axis of the first optical system. At least part of the first and second optical systems that is on the side opposite the reflection surface of the reflector is cut off.
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