English-Thai Dictionary

parallax

N การ เปลี่ยน ตำแหน่ง ของ วัตถุ ตาม ตำแหน่ง ที่ ผู้มอง เปลี่ยนไป  kan-plian-tam-ngang-tam-wad-tu-tam-tam-ngang-ti-mong-plian-pai

 

Webster's 1828 Dictionary

PARALLAX

n.[Gr. to vary, to decline or wander; beyond, and to change. ] In astronomy, the change of place in a heavenly body in consequence of being viewed from different points. Diurnal parallax, the difference between the place of a celestial body, as seen from the surface, and from the center of the earth, at the same instant.
Annual parallax, the change of place in a heavenly body, in consequence of being viewed at opposite extremities of the earth's orbit.

 

Webster's 1913 Dictionary

PARALLAX

Par "al *lax, n. Etym: [Gr. parallaxe. Cf. Parallel. ]

 

1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or points of view.

 

2. (Astron.)

 

Defn: The apparent difference in position of a body (as the sun, or a star ) as seen from some point on the earth's surface, and as seen from some other conventional point, as the earth's center or the sun. Annual parallax, the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; as, the annual parallax of a fixed star. -- Binocular parallax, the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved. -- Diurnal, or Geocentric, parallax, the parallax of a body with reference to the earth's center. This is the kind of parallax that is generally understood when the term is used without qualification. -- Heliocentric parallax, the parallax of a body with reference to the sun, or the angle subtended at the body by lines drawn from it to the earth and sun; as, the heliocentric parallax of a planet. -- Horizontal parallax, the geocentric parallx of a heavenly body when in the horizon, or the angle subtended at the body by the earth's radius. -- Optical parallax, the apparent displacement in position undergone by an object when viewed by either eye singly. Brande & C. -- Parallax of the cross wires (of an optical instrument ), their apparent displacement when the eye changes its position, caused by their not being exactly in the focus of the object glass. -- Stellar parallax, the annual parallax of a fixed star.

 

New American Oxford Dictionary

parallax

par al lax |ˈparəˌlaks ˈpɛrəˌlæks | ▶noun the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera. • the angular amount of this in a particular case, esp. that of a star viewed from different points in the earth's orbit. DERIVATIVES par al lac tic |ˌparəˈlaktik |adjective ORIGIN late 16th cent. (also in the general sense ‘fact of seeing wrongly ’): from French parallaxe, from Greek parallaxis ‘a change, ’ from parallassein ‘to alternate, ’ based on allassein ‘to exchange ’ (from allos ‘other ’).

 

Oxford Dictionary

parallax

parallax |ˈparəlaks | ▶noun [ mass noun ] the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g. through the viewfinder and the lens of a camera. • [ count noun ] the angular amount of parallax in a particular case, especially that of a star viewed from different points in the earth's orbit. DERIVATIVES parallactic |-ˈlaktɪk |adjective ORIGIN late 16th cent. (also in the general sense ‘fact of seeing wrongly ’): from French parallaxe, from Greek parallaxis ‘a change ’, from parallassein ‘to alternate ’, based on allassein ‘to exchange ’ (from allos ‘other ’).

 

Duden Dictionary

Parallaxe

Pa r al la xe , Pa ral la xe Substantiv, feminin , die |Parall a xe |griechisch parállaxis = Vertauschung, Abweichung, zu: parallássein = vertauschen 1 Physik Winkel, der entsteht, wenn ein Objekt von zwei verschiedenen Standorten aus betrachtet wird, und der als scheinbare Verschiebung des Objekts vor dem Hintergrund zu beobachten ist 2 Astronomie Entfernung eines Gestirns, die mithilfe der Parallaxe 1 gemessen wird 3 Fotografie Unterschied zwischen dem Ausschnitt eines Bildes im Sucher und auf dem Film, der durch die von Sucher und Objektiv gebildete Parallaxe 1 entsteht

 

Parallaxenausgleich

Pa r al la xen aus gleich , Pa ral la xen aus gleich Substantiv, maskulin Fotografie , der |Parall a xenausgleich |Einrichtung an fotografischen Suchern zum Ausgleich der Parallaxe 1

 

Sanseido Wisdom Dictionary

parallax

par al lax /pǽrəlæ̀ks /名詞 U C 〘天 写 〙(観察者の位置の移動による )変位 ; 視差 .