Login Preferences
About News Publications Statistics Downloads API Guide License How to use Preferences
bn:00061336n
Noun Concept
Categories: Antennas (radio), Geometrical optics, Radiation therapy, Optics stubs
EN
pencil  narrow beam  Pencil-beam radar  pencil beam  pencil of rays
EN
A figure formed by a set of straight lines or light rays meeting at a point WordNet 3.0
English:
optics
physics
Definitions
Relations
Sources
EN
A figure formed by a set of straight lines or light rays meeting at a point WordNet 3.0 & Open English WordNet
In optics, a pencil or pencil of rays is a geometric construct used to describe a beam or portion of a beam of electromagnetic radiation or charged particles, typically in the form of a narrow beam. Wikipedia
A beam of radiant energy in the form of a narrow cone or cylinder Wikipedia Disambiguation
An aggregate or collection of rays of light, especially when diverging from, or converging to, a point. Wiktionary
IS A
figure
CATEGORY DOMAIN
geometry
physics
WordNet 3.0 & Open English WordNet
EN
pencil
Wikipedia
EN
pencil (optics)
Wikidata
EN
pencil
Wiktionary
EN
pencil
Wikipedia Redirections
EN
narrow beam, Pencil-beam radar, Pencil (physics), pencil beam, pencil of rays
Wikidata Alias
EN
pencil of rays

Please note that, in order to improve your browsing experience on this website, BabelNet® uses various types of cookies, including: browsing functionality, performance and statistical cookies.

By continuing to browse the site you are agreeing to our use of cookies. OK

License