Definitions from Wiktionary (echelon lens)
▸ noun: (optics) A large lens constructed in several parts or layers, extending in a series of annular rings beyond the central lens, and used in lighthouses.
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▸ noun: (optics) A large lens constructed in several parts or layers, extending in a series of annular rings beyond the central lens, and used in lighthouses.
Similar:
lenticular,
multiplying lens,
lunettes,
monocentric,
polyscope,
varifocal lens,
monocle,
semilens,
lenticular image,
monocule,
more...
▸ Words similar to echelon lens
▸ Usage examples for echelon lens
▸ Idioms related to echelon lens
▸ Wikipedia articles (New!)
▸ Words that often appear near echelon lens
▸ Rhymes of echelon lens
▸ Invented words related to echelon lens