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Spherical aberration in theory and in practice. SA and its influence on the aesthetic quality of blur. ... Figure 1. Illustration of undercorrected spherical aberration. The margins of the lens have a shorter focal length than the center.
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toothwalker.org/optics/spherical.html
toothwalker.org/optics/spherical.html
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This is an example of a WordPress page, you could edit this to put information about yourself or your site so readers know where you are coming from. You can create as many pages like this one or sub-pages as you like and manage all of your content inside of WordPress ... all about spherical aberration...
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www.sphericalaberration.com/
www.sphericalaberration.com/
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Initialize Mirror with Spherical Aberration ... You can click-drag both the source and the mirror. You can also clink-drag on the focal length and the source angle if you make the lens or the source the active element ... The small angle approximation used in the mirror equation does not produce spherical aberration. Try it.
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webphysics.davidson.edu/applets/Optics/spherical_aberat...
webphysics.davidson.edu/applets/Optics/spherical_aberation.html
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Hutchinson encyclopedia article about spherical aberration. spherical aberration. Information about spherical aberration in the Hutchinson encyclopedia. ... (redirected from spherical aberration)
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encyclopedia.farlex.com/spherical+aberration
encyclopedia.farlex.com/spherical+aberration
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Spherical aberration as a wavefront and ray aberration; definition, illustrations and formulae. ... Spherical aberration in the majority of amateur telescopes - especially more traditional ones, like Newtonian reflector or achromat refractor - is sufficiently accurately presented based on 4th order surface approximation.
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www.telescope-optics.net/spherical1.htm
www.telescope-optics.net/spherical1.htm
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A standard way to eliminate spherical aberration is to simply place a circular aperture before the lens so that the aperture blocks the rays that would otherwise hit the outer portions of the lens. This does cause the image to sharpen at the expense of reducing the image brightness.
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www.cbu.edu/~jvarrian/applets/lens3/thickl_z.htm
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Spherically shaped lenses and mirrors share a problem: their shape. Parallel light rays that pass through the central region of a spherical lens focus farther away than light rays that pass through the edges of the lens. ... Diagram demonstrating the multiple focal points caused by spherical aberration in lenses.
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amazing-space.stsci.edu/resources/explorations/groundup...
amazing-space.stsci.edu/resources/explorations/groundup/lesson/basics/g11/index.php
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These are known as monochromatic aberrations, and include spherical aberration, coma, astigmatism, field curvature and distortion. Other aberrations occur only with light that contains multiple wavelengths. These are known as chromatic aberrations.
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physics.tamuk.edu/~suson/html/4323/aberatn.html
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Encyclopedia article about spherical aberration. Information about spherical aberration in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... This procedure is "the worst [type of eye surgery] in terms of introducing spherical aberration," says Howland.
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encyclopedia2.thefreedictionary.com/spherical+aberratio...
encyclopedia2.thefreedictionary.com/spherical+aberration
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