Patent ID: 8130364

Claim:
A projection optical apparatus for forming a magnified image of a first object on a second object, wherein the first object is arranged in a first plane, and the second object is arranged in a second plane relatively movable to the magnified image in a predetermined first direction, wherein a first view point and a second view point are set in the first plane, and a first conjugate point and a second conjugate point respectively corresponding to the first view point and the second view point are set in the second plane, the apparatus comprising: a first projection optical system which directs a light beam from the first view point to the first conjugate point and forms a magnified image of the first object in the first plane on the second object in the second plane; and a second projection optical system which directs a light beam from the second view point to the second conjugate point and forms a magnified image of the first object in the first plane on the second object in the second plane, wherein the first projection optical system includes a first light beam transfer member which shifts a position of the light beam from the first view point at least in the first direction, wherein the second projection optical system includes a second light beam transfer member which shifts a position of the light beam from the second view point at least in the first direction, and wherein a first line segment links a first projected point, which orthogonally projects the first view point, to the first conjugate point and a second line segment links a second projected point, which orthogonally projects the second view point, to the second conjugate point, and at least part of the first line segment and at least part of the second line segment overlap each other within the second plane as viewed in a second direction that is orthogonal to the first direction.