Top Qs
Timeline
Chat
Perspective
Confocal
Index of articles associated with the same name From Wikipedia, the free encyclopedia
Remove ads
In geometry, confocal means having the same foci: confocal conic sections.
- For an optical cavity consisting of two mirrors, confocal means that they share their foci. If they are identical mirrors, their radius of curvature, Rmirror, equals L, where L is the distance between the mirrors.
- In conic sections, it is said of two ellipses, two hyperbolas, or an ellipse and a hyperbola which share both foci with each other. If an ellipse and a hyperbola are confocal, they are perpendicular to each other.
- In optics, it means that one focus or image point of one lens is the same as one focus of the next lens.
Remove ads
See also
- Confocal laser scanning microscopy
- Confocal microscopy
- List of orbits § Eccentricity classifications
This set index article includes a list of related items that share the same name (or similar names).
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads