Photocopying – Projection printing and copying cameras – Distortion introducing or rectifying
Reexamination Certificate
2006-05-02
2006-05-02
Kim, Peter B. (Department: 2851)
Photocopying
Projection printing and copying cameras
Distortion introducing or rectifying
C355S053000, C355S057000, C359S726000
Reexamination Certificate
active
07038761
ABSTRACT:
An exposure apparatus includes a projection optical system of catadioptric type, and an optical element disposed on a reciprocating light path of the projection optical system, the optical element being movable to correct at least one of spherical aberration, astigmatism, and curvature of field of the projection optical system.
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