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aplanatic

   Also found in: Medical, Encyclopedia 0.01 sec.
ap·la·nat·ic  (pl-ntk)
adj.
Of or relating to optical systems that correct for spherical aberration.

[From a- + Greek plansthai, to wander; see pel-2 in Indo-European roots.]

aplanatic [ˌæpləˈnætɪk]
adj
(Physics / General Physics) (of a lens or mirror) free from spherical aberration
[from Greek aplanētos prevented from wandering, from a-1 + planētos, from planaein to wander]
aplanatically  adv
ThesaurusLegend:  Synonyms Related Words Antonyms
Adj.1.aplanatic - free from or corrected for spherical aberrationaplanatic - free from or corrected for spherical aberration; "an aplanatic mirror"
optics - the branch of physics that studies the physical properties of light
corrected - having something undesirable neutralized; "with glasses her corrected vision was 20:20"


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Engineered using an aplanatic design like a Ritchey-Chretien, Meade's ACF optical design consists of a hyperbolic secondary and corrector lens/primary mirror combination that performs as one hyperbolic element, eliminating coma and diffraction spikes found in the much more expensive Ritchey-Chretien telescopes.
Aplanatic lenses correct for coma and spherical aberrations.
 
 
 
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