Tolerance in angles of continuously self-imaging gratings (CSIGs) is explored. The degradation in angle of the shape of the point-spread function is theoretically investigated and illustrated by simulations and experiments. The formalism presented is inspired by the one used for classical lenses and can be easily generalized to diffraction gratings. It turns out that well-designed CSIGs could be used for scanning optical systems requiring a large field of view.
© 2007 Optical Society of America
Original Manuscript: May 4, 2007
Revised Manuscript: July 30, 2007
Manuscript Accepted: July 31, 2007
Published: September 25, 2007
Guillaume Druart, Nicolas Guérineau, Riad Haïdar, Jérôme Primot, Pierre Chavel, and Jean Taboury, "Nonparaxial analysis of continuous self-imaging gratings in oblique illumination," J. Opt. Soc. Am. A 24, 3379-3387 (2007)