Optical element and optical apparatus

Details Optical element and optical apparatus Optical element and optical apparatus

2005-01-11

2005-01-11

Nguyen, Thong Q (Department: 2872)

Optical: systems and elements

Compound lens system

With curved reflective imaging element

C359S362000, C359S637000, C359S729000

Reexamination Certificate

active

06842280

ABSTRACT:
An optical element comprising an object-side imaging element for imaging an object on an intermediate image plane in an optical path before a final image plane and an image-side imaging element for reimaging an object image formed on the intermediate image plane, on the final image plane, wherein at least one of the object-side imaging element and the image-side imaging element comprises an off-axial curved surface, and wherein aberration is generated by both of the object-side imaging element and the image-side imaging element, thereby flattening (disturbance of) a light intensity distribution caused on the final image plane by a noise source at or near the intermediate image plane.

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