अबिंदुकता हिंदी उपयोग और उदाहरण

""अबिंदुकता या (Astigmatism) वर्तन की ऐसी अवस्था है, जिसमें दृष्टिपटल पर प्रकाश का बिंदु-फोकस नहीं बन पाता।

वक्रता की त्रुटि, संकेंद्रण (centering) या वर्तनांक की त्रुटि के कारण अबिंदुकता हो सकती है।

अबिंदुकता (astigmatizm) के दोष को दूर करने के लिए बेलनदार ताल प्रयुक्त होता है।

अबिंदुकता या (Astigmatism) वर्तन की ऐसी अवस्था है, जिसमें दृष्टिपटल पर प्रकाश का बिंदु-फोकस नहीं बन पाता।

अबिंदुकता इसके अंग्रेजी अर्थ का उदाहरण

The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens.

Multiple focal lengths are accepted in the form of bifocals, trifocals, vari-focals, and cylindrical components for astigmatism.

| Design: || Aspheric; toric for astigmatism in some countries.

| Powers (toric for astigmatism): || From plano to −6.

John Phillips suggests that here Jesus teaches the possibility of having a "spiritual astigmatism" (failing to converge vision in one focal point), and urges the disciples to have a "single" eye to "see through the folly of laying up treasure on earth and keeps the next world in proper focus".

O'Keefe designed and developed the one-Ångström microscope (OÅM) for the National Center for Electron Microscopy at Lawrence Berkeley National Laboratory based on an FEI Company CM300 microscope that he modified extensively to improve coherence and correct three-fold astigmatism.

Sclerals may also be used in people with eyes that are too sensitive for other smaller corneal-type lenses, but require a more rigid lens for vision correction conditions such as astigmatism.

Mitchell was awarded an astronomy assistantship for his second year at JHU and continued until he received his PhD in 1898 with his thesis published in the Astrophysical Journal, which included a discussion of the amount of astigmatism of a concave grating.

Early off-axis designs such as the Herschelian and the Schiefspiegler telescopes have serious limitations such as astigmatism and long focal ratios, which make them useless for research.