Daya optis

Daya optis (bahasa Inggris: optical power, dioptric power, refractive power, focusing power, convergence power) adalah rasio kekuatan lensa untuk membiaskan sinar cahaya ke titik api terhadap jarak fokusnya.[1] Dioptri adalah alat yang paling umum digunakan untuk pengukuran ini.

Referensi

  1. ^ Greivenkamp, John E. (2004). Field Guide to Geometrical Optics. SPIE Field Guides vol. FG01. SPIE. hlm. 7. ISBN 0-8194-5294-7. 


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