TORTHAÍ
IN ENGLISH—IRISH DICTIONARY
lens, s. 1 a Lionsa m. Field lens (of surveying instrument), lionsa suirbhéireachta. Phot: Front, back, lens, lionsa tosaigh, cúil. b (Magnifying glass) Lionsa méadaithe. Pocket lens, gloine f phóca. 2 Anat: Crystalline lens, lionsa criostaltha (na súile).
ABAIRTÍ
IN ENGLISH—IRISH DICTIONARY
Opt: Four-component lens, lionsa ceathairchodach.
Phot: Doublet lens, lionsa dúbailte.
To grind down a lens, lionsa a shnoí.
To stop down a lens, lionsa a dhruidim.
Phot: Telescopic lens, lionsa teileascópach.
Opt: Triplet lens, lionsa triarach.