单词	aspherical
释义	aspherical /eɪˈsfɛrɪk(ə)l / adjective (Especially of an optical lens) not spherical.The newly developed 9-group 11-element structured lens, which offers 10x optical zoom, includes a glass-molded aspherical lens.... Optical configurations include plano, spherical, aspherical, toric, cylindrical, diffractive, and sometimes combinations of these. In 1665, he developed the principles of his theory of gravitation, worked out fluxional calculus, devised instruments for grinding lenses to aspherical shapes, decomposed solar light into its component colors. Derivatives aspheric adjective ... Designs incorporating aspheric optics can magnify the image by about 20X; higher values require folded compound magnification schemes. The system uses a generalized aspheric optic element placed near the aperture stop of an optical instrument to produce these results. Typically, the designer adds more lens elements or applies small perturbations to spherical shapes using aspheric surfaces. aspherically adverb ... Retain your original mirror housings and get the benefits of aspherically bent glass. To assure the highest optical quality it features three aspherically created elements and one element made from super low dispersion glass. Although it is possible to buy lenses that have aspherically curved surfaces, the vast majority of lenses have spherically curved surfaces.
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