negative spherical aberration


negative spherical aberration
отрицательная сферическая аберрация

Англо-русский офтальмологический словарь. 2010.

Смотреть что такое "negative spherical aberration" в других словарях:

  • negative spherical aberration — unequal refraction of light rays by a lens, the peripheral rays being focused farther from the lens than the paraxial rays …   Medical dictionary

  • Spherical aberration — shape of lenses and mirrors. This is an important effect, as spherical shapes are much easier to produce than aspherical and so most lenses have spherical shapes. Positive spherical aberration means peripheral rays are bent too much. Negative… …   Wikipedia

  • spherical aberration — spher·i·cal aberration sfir i kəl , sfer n aberration that is caused by the spherical form of a lens or mirror and that gives different foci for central and marginal rays * * * zonal aberration in relation to an axial point; see negative… …   Medical dictionary

  • Aberration géométrique — En optique géométrique, on appelle aberration géométrique (ou aberration monochromatique[1]) un écart entre un rayon paraxial défini dans l approximation de Gauss et le rayon réel correspondant. Une aberration géométrique peut également être… …   Wikipédia en Français

  • Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar …   Wikipedia

  • Optical aberration — v · d · e Optical aberration …   Wikipedia

  • Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …   Wikipedia

  • aberración esférica negativa — Eng. Negative spherical aberration Aberración esférica en la cual los rayos periféricos sufren una mayor refracción que los paraaxiales …   Diccionario de oftalmología

  • Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra …   Wikipedia

  • optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

  • Eyeglass prescription — Using a phoropter to determine a prescription for eyeglasses An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed… …   Wikipedia


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