bn:00050673n
Noun Concept
Categories: Lenses, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Optical components, All articles containing potentially dated statements, Articles with short description
EN
lens  lense  lens system  Lens maker's formula  Bi-concave diverging lens
EN
A transparent optical device used to converge or diverge transmitted light and to form images WordNet 3.0
English:
optics
Definitions
Relations
Sources
EN
A transparent optical device used to converge or diverge transmitted light and to form images WordNet 3.0 & Open English WordNet
A lens is a transmissive optical device which focuses or disperses a light beam by means of refraction. Wikipedia
Optical element which converges or diverges light. Wikipedia Disambiguation
Optical device which transmits and refracts light Wikidata
An optical device with perfect or approximate axial symmetry which transmits and refracts light, concentrating or diverging the beam. OmegaWiki
A device which focuses or defocuses electron beams. Wiktionary
Device which focuses or defocuses electron beams. Wiktionary (translation)