Stigmatism

Stigmatism

In geometric optics, stigmatism refers to the image-formation property of an optical system which focuses a single point source in object space into a single point in image space. Two such points are called a stigmatic pair of the optical system. Many optical systems, even those exhibiting optical aberrations including astigmatism, have at least one stigmatic pair. Stigmatism is applicable only in the approximation provided by geometric optics. In reality, image formation is at best diffraction limited and point-like images are not possible.

References

*cite book | first=Dietrich | last=Korsch | year=1991 | title=Reflective Optics | publisher=Academic Press | id=ISBN 0-12-421170-4


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  • stigmatism — STIGMATÍSM s.n. Proprietate a unui sistem optic de a forma pentru fiecare punct al unui obiect o imagine care este tot un punct (şi nu o imagine deformată). – Din fr. stigmatisme. Trimis de claudia, 13.09.2007. Sursa: DEX 98  stigmatísm s. n.… …   Dicționar Român

  • stigmatism — index brand Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • stigmatism — 1660s, “branding,” from Gk. stigmatizein, from stigmat (see STIGMA (Cf. stigma)). Meaning “condition of being affected with stigmata” is from 1900 …   Etymology dictionary

  • stigmatism — [stig′mə tiz΄əm] n. 1. the condition characterized by the presence of stigmas or stigmata 2. the condition of a lens, and the normal condition of the eye, in which rays of light from a single point are focused upon a single point …   English World dictionary

  • stigmatism — noun /ˈstɪɡməˌtɪzəm/ a) Image formation property of an optical system which focuses a single point source in object space into a single point in image space My father has a stigmatism and wears bifocals. b) Normal eyesight, anastigmatic state Ant …   Wiktionary

  • stigmatism — /stig meuh tiz euhm/, n. 1. Optics. the property of a lens that is stigmatic. 2. Pathol. a condition in which stigmata are present. [1655 65; stigmat (see STIGMATIC) + ISM] * * * …   Universalium

  • stigmatism — The condition of having a stigma. SYN: stigmatization (1). * * * stig·ma·tism (stigґmə tiz əm) 1. the condition due to or marked by stigmata. 2. the accurate rendition of points by a lens system …   Medical dictionary

  • stigmatism — n. condition of being affected with stigmas or stigmata; condition in which a lens properly focuses light rays; normal vision …   English contemporary dictionary

  • stigmatism — stig·ma·tism …   English syllables

  • stigmatism — /ˈstɪgmətɪzəm/ (say stigmuhtizuhm) noun 1. Optics a condition in which there is no astigmatism. 2. Pathology the condition in which stigmata are present …  

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