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- Conic_constant abstract "In geometry, the conic constant (or Schwarzschild constant, after Karl Schwarzschild) is a quantity describing conic sections, and is represented by the letter K. For negative K it is given bywhere e is the eccentricity of the conic section.The equation for a conic section with apex at the origin and tangent to the y axis iswhere K is the conic constant and R is the radius of curvature at x = 0.This formulation is used in geometric optics to specify oblate elliptical (K > 0), spherical (K = 0), prolate elliptical (0 > K > −1), parabolic (K = −1), and hyperbolic (K < −1) lens and mirror surfaces. When the paraxial approximation is valid, the optical surface can be treated as a spherical surface with the same radius.Some non-optical design references use the letter p as the conic constant. In these cases, p = K + 1.".
- Conic_constant thumbnail Conic_constant.svg?width=300.
- Conic_constant wikiPageID "1977696".
- Conic_constant wikiPageRevisionID "541197467".
- Conic_constant hasPhotoCollection Conic_constant.
- Conic_constant subject Category:Conic_sections.
- Conic_constant subject Category:Geometrical_optics.
- Conic_constant subject Category:Mathematical_constants.
- Conic_constant type Abstraction100002137.
- Conic_constant type Attribute100024264.
- Conic_constant type Cognition100023271.
- Conic_constant type Concept105835747.
- Conic_constant type ConicSection113872975.
- Conic_constant type ConicSections.
- Conic_constant type Constant105858936.
- Conic_constant type Content105809192.
- Conic_constant type Figure113862780.
- Conic_constant type Idea105833840.
- Conic_constant type MathematicalConstants.
- Conic_constant type PlaneFigure113863186.
- Conic_constant type PsychologicalFeature100023100.
- Conic_constant type Quantity105855125.
- Conic_constant type Shape100027807.
- Conic_constant comment "In geometry, the conic constant (or Schwarzschild constant, after Karl Schwarzschild) is a quantity describing conic sections, and is represented by the letter K.".
- Conic_constant label "Conic constant".
- Conic_constant label "Konische Konstante".
- Conic_constant label "Коническая константа".
- Conic_constant sameAs Konische_Konstante.
- Conic_constant sameAs m.06bft5.
- Conic_constant sameAs Q1423258.
- Conic_constant sameAs Q1423258.
- Conic_constant sameAs Conic_constant.
- Conic_constant wasDerivedFrom Conic_constant?oldid=541197467.
- Conic_constant depiction Conic_constant.svg.
- Conic_constant isPrimaryTopicOf Conic_constant.