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- Modified_Dall–Kirkham_telescope abstract "The Modified Dall-Kirkham telescope utilizes an elliptical primary and spherical secondary mirror as in the conventional Dall-Kirkham configuration, but also includes a lens group (usually two or three lens elements) ahead of the focal point to improve off-axis image quality. The primary mirror conic constant is slightly different from that for a conventional Dall-Kirkham and must be optimized along with the lenses during design. The usable field is much better than the Ritchey-Chrétien telescope without corrector, and over very wide spectral bands, typically 380 to 950 nanometres (edges of UV-A and near infrared) if the corrector is made of quartz. (With a corrector, the Ritchey-Chrétien System also has a better and bigger field.)Such a telescope was designed by Rosin and Wynne after World War II. The performances are equal or better than the Ritchey-Chrétien telescope. The spherical secondary can be fringe tested against the spherical convex surface or tested from behind. This is markedly an advantage over the hyperbolic secondary of the Ritchey-Chrétien design.Another advantage of either the basic Dall-Kirkham or the Modified Dall-Kirkham design is that collimation of the convex spherical secondary mirror with respect to the optical axis of the primary mirror is almost trivial, because there is no single defined axis of a sphere. Any line that runs through the center of the sphere can be an axis.".
- Modified_Dall–Kirkham_telescope wikiPageExternalLink le_telescope_de_wynne-rosin.html.
- Modified_Dall–Kirkham_telescope wikiPageID "4396931".
- Modified_Dall–Kirkham_telescope wikiPageLength "1813".
- Modified_Dall–Kirkham_telescope wikiPageOutDegree "16".
- Modified_Dall–Kirkham_telescope wikiPageRevisionID "641777410".
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Category:Telescope_types.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Conic_constant.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Dall-Kirkham_telescope.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Ellipse.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Elliptical.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Focus_(optics).
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Image.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Infrared.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Lens_(optics).
- Modified_Dall–Kirkham_telescope wikiPageWikiLink List_of_telescope_types.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Mirror.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Nanometre.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Near_infrared.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Reflecting_telescope.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Ritchey-Chrétien_telescope.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Ritchey–Chrétien_telescope.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Sphere.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Spherical.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Telescope.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink UV-A.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink Ultraviolet.
- Modified_Dall–Kirkham_telescope wikiPageWikiLink World_War_II.
- Modified_Dall–Kirkham_telescope wikiPageWikiLinkText "Corrected Dall-Kirkham".
- Modified_Dall–Kirkham_telescope wikiPageWikiLinkText "Modified Dall–Kirkham telescope".
- Modified_Dall–Kirkham_telescope wikiPageWikiLinkText "corrected Dall-Kirkham telescope".
- Modified_Dall–Kirkham_telescope wikiPageWikiLinkText "modified Dall–Kirkham telescope".
- Modified_Dall–Kirkham_telescope hasPhotoCollection Modified_Dall–Kirkham_telescope.
- Modified_Dall–Kirkham_telescope wikiPageUsesTemplate Template:Observatory-stub.
- Modified_Dall–Kirkham_telescope subject Category:Telescope_types.
- Modified_Dall–Kirkham_telescope comment "The Modified Dall-Kirkham telescope utilizes an elliptical primary and spherical secondary mirror as in the conventional Dall-Kirkham configuration, but also includes a lens group (usually two or three lens elements) ahead of the focal point to improve off-axis image quality. The primary mirror conic constant is slightly different from that for a conventional Dall-Kirkham and must be optimized along with the lenses during design.".
- Modified_Dall–Kirkham_telescope label "Modified Dall–Kirkham telescope".
- Modified_Dall–Kirkham_telescope sameAs m.0c006p.
- Modified_Dall–Kirkham_telescope sameAs Q6889368.
- Modified_Dall–Kirkham_telescope sameAs Q6889368.
- Modified_Dall–Kirkham_telescope wasDerivedFrom Modified_Dall–Kirkham_telescope?oldid=641777410.
- Modified_Dall–Kirkham_telescope isPrimaryTopicOf Modified_Dall–Kirkham_telescope.