Young-Helmholtz theory of color vision

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• Young-Helmholtz theory — Young Helm·holtz theory yəŋ helm .hōlts n a theory in color vision: the eye has three separate elements each of which is stimulated by a different primary color Young Thomas (1773 1829) British physician, physicist, and Egyptologist. Young is… …   Medical dictionary

• Young–Helmholtz theory — The Young–Helmholtz theory (proposed in the 19th century by Thomas Young and Hermann von Helmholtz) is a theory of trichromatic color vision – the manner in which the photoreceptors in the eyes of humans and other primates work to enable color… …   Wikipedia

• young-helmholtz theory — ˈyəŋˈhel]mˌhōlts, ˈheu̇] noun Usage: usually capitalized Y&H Etymology: Thomas Young died 1829 English physician and physicist and Hermann L. F. von Helmholtz died 1894 German physicist : a theory in color vision: the eye has three separate… …   Useful english dictionary

• Color vision — White light shone onto a green surface is perceived as green by the human eye, and processed as such in the brain s visual cortex …   Wikipedia

• theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… …   Medical dictionary

• Helmholtz — Hermann L.F. von, German physician, physicist, and physiologist, 1821–1894. See H. axis ligament, H. energy, H. theory of accommodation, H. theory of color vision, H. theory of hearing, H. Gibbs theory, Gibbs H. equation, Young H. theory of color …   Medical dictionary

• Young — William John, 20th century Australian biochemist. See Harden Y. ester. Thomas, English physician and physicist, 1773–1829. See Y. modulus, Y. rule, Y. Helmholtz theory of color vision. Hugh H., U.S. urologist, 1870–1945. See Y. prostatic tractor …   Medical dictionary

• Color — This article is about the perceptual property. For other uses, see Color (disambiguation). For usage of color on Wikipedia, see Wikipedia:Colors. Colored pencils Color or colour (see spelling differences) is the visual perceptual property… …   Wikipedia

• Color wheel — For the circular mechanical device for tinting a light beam (e.g., in a DLP video projector), see color wheel (optics). Boutet s 7 color and 12 color color circles from 1708 …   Wikipedia

• Color triangle — A 1775 color triangle …   Wikipedia

• Hermann von Helmholtz — Infobox Scientist name = Hermann von Helmholtz |225px image width = 225px caption = Hermann Ludwig Ferdinand von Helmholtz birth date = birth date|1821|8|31|mf=y birth place = Potsdam, Kingdom of Prussia residence = Germany nationality = German… …   Wikipedia