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a·spher·ic (ā-sfîrʹĭk, ā-sfĕrʹ-) also a·spher·i·cal (-ĭ-kəl) adj.* * *
Universalium. 2010.
aspheric — [ā΄sfir′ik] adj. designating or of a lens or mirror made so that it is not perfectly spherical, as to minimize spherical aberration: also aspherical … English World dictionary
aspheric — or aspherical adjective Date: circa 1922 departing slightly from the spherical form especially in order to correct for spherical aberration < an aspheric lens > … New Collegiate Dictionary
aspheric — Denoting a paraboloidal surface, especially of a lens or mirror, that eliminates spherical aberration. [G. a priv. + sphaira, sphere] * * * aspher·ic ( )ā sfi(ə)r ik, sfer or aspher·i·cal i kəl adj departing slightly from the spherical form esp.… … Medical dictionary
Aspheric lens — An aspheric lens or asphere is a lens whose surfaces have a profile that is neither a portion of a sphere nor of a circular cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens.The asphere … Wikipedia
aspheric — adjective aspherical … Wiktionary
aspheric — adj. having a slight spherical variation (i.e. on a lens) … English contemporary dictionary
aspheric — adjective varying slightly from a perfectly spherical shape • Syn: ↑aspherical • Similar to: ↑rounded • Topics: ↑optics … Useful english dictionary
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Wing mirror — Dual contour wing mirror. Large inboard convex surface is separated by visible line from small outboard aspheric surface … Wikipedia
microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
