Haidinger's brush

Haidinger's brush
   Also known as Haidinger brushes, Haidinger's brushes, and Haidinger's polarization brushes. All four eponyms refer to the Austrian physicist, geologist, and mineralogist Wilhelm Karl Ritter von Haidinger (1795-1871), who has been credited with being the first to describe the concomitant phenomenon in 1844. Haidinger's brush is generally classified as an *entoptic phenomenon. It consists of a yellowish horizontal
   References
   Haidinger, W. (1844). Ueber das directe Erkennen des polarisirten Lichts und der Lage der Polarisationsebene. Annalen der Physik, 139, 29-39.
   Lynch, D.K., Livingston, W. (1995). Color and light in nature. Cambridge: Cambridge University Press.
   Priestly, B.S., Foree, K. (1955). Clinical significance of some entoptic phenomena. Archives of Ophthalmology, 53, 390-397.

Dictionary of Hallucinations. . 2010.

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  • Haidinger's brush — is an entoptic phenomenon first described by Austrianphysicist Wilhelm Karl von Haidinger in 1844.Many people are able to perceive polarization of light.It may be seen as a yellowish horizontal bar or bow tie shape (with fuzzy ends, hence the… …   Wikipedia

  • Haidinger's brush — /ˌhaɪdɪŋəz ˈbrʌʃ/ (say .huydinguhz brush) noun an elongated faintly yellowish region seen in the blue sky due to the polarisation of light from the sky. {named after WK Haidinger, 1795–1871, Austrian mineralogist and physicist} …  

  • Haidinger fringe — Haidinger fringes are interference fringes formed by the interference of monochromatic and coherent light to form visible dark and bright fringes. Fringe localization is the region of space where fringes with reasonably good contrast are observed …   Wikipedia

  • Haidinger-Büschel — Darstellung des Haidinger Büschels (Skizze nach Marcel Minnaert) Im Jahre 1844 hat Wilhelm Ritter von Haidinger in den Annalen der Physik[1] auf eine bis dahin unbeachtete Fähigkeit des menschlichen Auges hingewiesen: mit Hilfe der Wahrnehmung… …   Deutsch Wikipedia

  • Haidinger brushes —    see Haidinger s brush …   Dictionary of Hallucinations

  • Haidinger's brushes —    see Haidinger s brush …   Dictionary of Hallucinations

  • Haidinger's polarization brushes —    see Haidinger s brush …   Dictionary of Hallucinations

  • Haidinger's brushes — Hai·ding·er s brush·es hī diŋ ərz brəsh əz n pl a faint blue and yellow dumbbell shaped image that is produced in the human eye by the selective absorption of polarized light by the yellow macular pigment of the fovea and can be used to detect… …   Medical dictionary

  • Haidinger brushes — Hai·ding·er brushes (hiґding ər) [Wilhelm von Haidinger, Austrian mineralogist, 1795–1871] see under brush …   Medical dictionary

  • brush — An instrument made of some flexible material, such as bristles, attached to a handle or to the tip of a catheter. [A.S. byrst, bristle] Ayre b. a device, consisting of a long flexible tube with a b. at the distal end, for collecting gastric… …   Medical dictionary

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