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Examples ofspherical aberration
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The compressed input beam is then directed to a spherical tertiary mirror, which results in traditionalsphericalaberration.
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This example is from Wikipedia and may be reused under a CC BY-SA license.He argued that a mirror shaped like the part of a conic section, would correct thesphericalaberration that flawed the accuracy of refracting telescopes.
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This example is from Wikipedia and may be reused under a CC BY-SA license.For simple designs one can sometimes calculate parameters that minimizesphericalaberration.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The best-known aberrations includesphericalaberrationand coma.
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This example is from Wikipedia and may be reused under a CC BY-SA license.By optimizing the extraction diode geometry and reducing the beam current, thesphericalaberrationwas later improved and therefore the beam profile became more uniform.
From theCambridge English Corpus
Sphericalaberrationoccurs near the edge of the emitter and is more pronounced when the source radius is large.
From theCambridge English Corpus
With on-axis viewing, as pupillary diameter increases beyond the optimal range, the retinal point spread function becomes wider as a result mainly ofsphericalaberration.
From theCambridge English Corpus
His research in catoptrics (the study of optical systems using mirrors) centred on spherical and parabolic mirrors andsphericalaberration.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The potential advantages of using parabolic mirrorsreduction ofsphericalaberrationand no chromatic aberrationled to many proposed designs and several attempts to build reflecting telescopes.
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This example is from Wikipedia and may be reused under a CC BY-SA license.By breaking the rotational symmetry a bit and varying the electrostatic potential along the mean path of thesphericalaberrationis minimized.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The photographer may introduce three levels ofsphericalaberrationvia a push-pull ring.
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This example is from Wikipedia and may be reused under a CC BY-SA license.However, the focus of a spherical reflector will not be a point focus because it suffers from a phenomenon known assphericalaberration.
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This example is from Wikipedia and may be reused under a CC BY-SA license.In brighter conditions, the pupil constricts, blocking the more peripheral rays and minimizing the effect ofsphericalaberration.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The geometric collecting area of each telescope is about 25 cm2, withsphericalaberrationlimiting resolution to about 0.25s.
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This example is from Wikipedia and may be reused under a CC BY-SA license.They are commonly used for laser applications, however, where the beams are both monochromatic (minimizing chromatic aberration) and narrow (minimizingsphericalaberration).
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This example is from Wikipedia and may be reused under a CC BY-SA license.This removessphericalaberrationwhile preserving the wide field of the short focal-length mirror.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Its symmetrical optical configuration produces lowsphericalaberrationand astigmatism.
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This example is from Wikipedia and may be reused under a CC BY-SA license.If the mirror is made parabolic, to correct thesphericalaberration, then it must necessarily suffer from coma and astigmatism.
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This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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