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erikujuline lääts, mille moodustavad kontsentrilised rõngad, mille ristlõige on kolmnurgasarnane, kasutatakse projektorites, tuletorni valgustis.
линза Френеля . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/%D0%BB%D0%B8%D0%BD%D0%B7%D0%B0%20%D0%A4%D1%80%D0%B5%D0%BD%D0%B5%D0%BB%D1%8F/1/rus (12.11.2026)
