Projection optical system and projection display device
AssigneeFUJIFILM Corporation
InventorMasaru AMANO
Life of this patent
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Abstract
A projection optical system forms an intermediate image at a position conjugate to a reduction side imaging surface, and forms a final image conjugate to the intermediate image on a magnification side imaging surface. The projection optical system includes a convex mirror disposed to be closer to the magnification side than the intermediate image and at least one lens that has a positive or negative refractive power and is disposed in an optical path so as to be closer to the magnification side than the convex mirror.
Claims12
A projection optical system that forms an intermediate image at a position conjugate to a reduction side imaging surface and forms a final image conjugate to the intermediate image on a magnification side imaging surface, the projection optical system comprising:
- a convex mirror that is disposed to be closer to a magnification side than the intermediate image;
- and
- at least one lens that has a positive or negative refractive power and is disposed in an optical path so as to be closer to the magnification side than the convex mirror.
Dependencies are inferred from the claim text.