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- Focal_cloud abstract "A focal cloud is the collection of focal points of any imperfect lens, whether optical, electrostatic or electromagnetic. This includes parabolic antennas and lens-type reflective antennas of all kinds. The effect is analogous to the circle of confusion in photography.In this focal cloud illustration, a perfect reflector would focus all beams into the blue spot. Due to imperfections of lens construction, the actual signal beams follow the red path to several different focal points, which form the focal cloud. Lens-reflector artifacts, geometry and other imperfections determine the actual radius of the focal cloud.".
- Focal_cloud thumbnail Focal_cloud.jpg?width=300.
- Focal_cloud wikiPageID "13914100".
- Focal_cloud wikiPageLength "1665".
- Focal_cloud wikiPageOutDegree "14".
- Focal_cloud wikiPageRevisionID "663957271".
- Focal_cloud wikiPageWikiLink Category:Antennas_(radio).
- Focal_cloud wikiPageWikiLink Category:Mirrors.
- Focal_cloud wikiPageWikiLink Category:Physical_optics.
- Focal_cloud wikiPageWikiLink Category:Satellite_broadcasting.
- Focal_cloud wikiPageWikiLink Circle_of_confusion.
- Focal_cloud wikiPageWikiLink Electrostatic_lens.
- Focal_cloud wikiPageWikiLink Feed_horn.
- Focal_cloud wikiPageWikiLink File:Focal_cloud.jpg.
- Focal_cloud wikiPageWikiLink Focus_(optics).
- Focal_cloud wikiPageWikiLink Lens_(optics).
- Focal_cloud wikiPageWikiLink Parabolic_antenna.
- Focal_cloud wikiPageWikiLink Phase_(waves).
- Focal_cloud wikiPageWikiLink Scalar_rings.
- Focal_cloud wikiPageWikiLinkText "Focal cloud".
- Focal_cloud wikiPageUsesTemplate Template:Antennas.
- Focal_cloud wikiPageUsesTemplate Template:Reflist.
- Focal_cloud wikiPageUsesTemplate Template:Unreferenced.
- Focal_cloud subject Category:Antennas_(radio).
- Focal_cloud subject Category:Mirrors.
- Focal_cloud subject Category:Physical_optics.
- Focal_cloud subject Category:Satellite_broadcasting.
- Focal_cloud hypernym Collection.
- Focal_cloud type Book.
- Focal_cloud type Redirect.
- Focal_cloud comment "A focal cloud is the collection of focal points of any imperfect lens, whether optical, electrostatic or electromagnetic. This includes parabolic antennas and lens-type reflective antennas of all kinds. The effect is analogous to the circle of confusion in photography.In this focal cloud illustration, a perfect reflector would focus all beams into the blue spot.".
- Focal_cloud label "Focal cloud".
- Focal_cloud sameAs Q5463842.
- Focal_cloud sameAs m.03cn2pm.
- Focal_cloud sameAs Q5463842.
- Focal_cloud wasDerivedFrom Focal_cloud?oldid=663957271.
- Focal_cloud depiction Focal_cloud.jpg.
- Focal_cloud isPrimaryTopicOf Focal_cloud.