Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Paraxial_approximation> ?p ?o. }
Showing items 1 to 38 of
38
with 100 items per page.
- Paraxial_approximation abstract "In geometric optics, the paraxial approximation is a small-angle approximation used in Gaussian optics and ray tracing of light through an optical system (such as a lens).A paraxial ray is a ray which makes a small angle (θ) to the optical axis of the system, and lies close to the axis throughout the system. Generally, this allows three important approximations (for θ in radians) for calculation of the ray's path:andThe paraxial approximation is used in Gaussian optics and first-order raytracing. Ray transfer matrix analysis is one method that uses the approximation.In some cases, the second-order approximation is also called "paraxial". The approximations above for sine and tangent do not change for the "second-order" paraxial approximation (the second term in their Taylor series expansion is zero), while for cosine the second order approximation isThe second-order approximation is accurate within 0.5% for angles under about 10°, but its inaccuracy grows significantly for larger angles.For larger angles it is often necessary to distinguish between meridional rays, which lie in a plane containing the optical axis, and sagittal rays, which do not.".
- Paraxial_approximation thumbnail Small_angle_compare_error.svg?width=300.
- Paraxial_approximation wikiPageExternalLink ParaxialApproximationAndTheMirror.
- Paraxial_approximation wikiPageID "2643603".
- Paraxial_approximation wikiPageRevisionID "591061682".
- Paraxial_approximation hasPhotoCollection Paraxial_approximation.
- Paraxial_approximation subject Category:Geometrical_optics.
- Paraxial_approximation type BodyPart105220461.
- Paraxial_approximation type Eye105311054.
- Paraxial_approximation type GeometricalOptics.
- Paraxial_approximation type Organ105297523.
- Paraxial_approximation type Part109385911.
- Paraxial_approximation type PhysicalEntity100001930.
- Paraxial_approximation type SenseOrgan105299178.
- Paraxial_approximation type Thing100002452.
- Paraxial_approximation comment "In geometric optics, the paraxial approximation is a small-angle approximation used in Gaussian optics and ray tracing of light through an optical system (such as a lens).A paraxial ray is a ray which makes a small angle (θ) to the optical axis of the system, and lies close to the axis throughout the system.".
- Paraxial_approximation label "Approssimazione parassiale".
- Paraxial_approximation label "Approximation de Gauss".
- Paraxial_approximation label "Aproximación paraxial".
- Paraxial_approximation label "Paraxial approximation".
- Paraxial_approximation label "Paraxiale Optik".
- Paraxial_approximation label "Paraxiale benadering".
- Paraxial_approximation label "Параксиальное приближение".
- Paraxial_approximation label "近軸近似".
- Paraxial_approximation sameAs Paraxiale_Optik.
- Paraxial_approximation sameAs Aproximación_paraxial.
- Paraxial_approximation sameAs Optika_paraxial.
- Paraxial_approximation sameAs Approximation_de_Gauss.
- Paraxial_approximation sameAs Approssimazione_parassiale.
- Paraxial_approximation sameAs 近軸近似.
- Paraxial_approximation sameAs Paraxiale_benadering.
- Paraxial_approximation sameAs m.07twjn.
- Paraxial_approximation sameAs Q1071734.
- Paraxial_approximation sameAs Q1071734.
- Paraxial_approximation sameAs Paraxial_approximation.
- Paraxial_approximation wasDerivedFrom Paraxial_approximation?oldid=591061682.
- Paraxial_approximation depiction Small_angle_compare_error.svg.
- Paraxial_approximation isPrimaryTopicOf Paraxial_approximation.
