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Collor-corrected Mangin mirror
Applied Optics
|January 9, 2010
Abstract:
Extension of the principle of the Mangin mirror to a color-corrected version yields designs superior to the equivalent paraboloid. This is true theoretically with regard to coma correction and practically with regard to ease of fabrication, particularly for high relative apertures. Examples are given of designs with low secondary spectrum and one with zero third-order coma.
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