Definitions from Wiktionary (Fresnel number)
▸ noun: (optics) A dimensionless quantity (denoted F), such that for an electromagnetic wave passing through an aperture and hitting a screen, F=(a²)/(Lλ) where a is the characteristic size (e.g. radius) of the aperture, L is the distance of the screen from the aperture, and λ is the incident wavelength.
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▸ noun: (optics) A dimensionless quantity (denoted F), such that for an electromagnetic wave passing through an aperture and hitting a screen, F=(a²)/(Lλ) where a is the characteristic size (e.g. radius) of the aperture, L is the distance of the screen from the aperture, and λ is the incident wavelength.
Similar:
f-number,
fresnel,
Froude number,
f-value,
focal length,
Fresnel lantern,
Fresnel lens,
f-stop,
quefrency,
Fresnel lamp,
more...
▸ Words similar to Fresnel number
▸ Usage examples for Fresnel number
▸ Idioms related to Fresnel number
▸ Wikipedia articles (New!)
▸ Words that often appear near Fresnel number
▸ Rhymes of Fresnel number
▸ Invented words related to Fresnel number