English-Finnish translations for diopter

• diopteri
• dioptri
  Lasieni linssien voimakkuus on (plus) 7 dioptria.
• dioptria
• teodoliitti

Definition of diopter

• A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters
• Any lens system, such as a telescope
• An alidade
• An instrument for drawing the skull by projections

Related words

• dioptase
• dioptrics
• catadioptrics
• catadioptric
• dioptre