Difference between revisions of Diopters
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1 prism diopter displaces 1 cm for an object 1 m away. If c is in cm, and f is in diopters, then P is in prism diopters. | 1 prism diopter displaces 1 cm for an object 1 m away. If c is in cm, and f is in diopters, then P is in prism diopters. | ||
A prism with apex angle a and refractive index n results in angle of deviation of the light d, which is equal to P prism diopters: | |||
<math>d=(n-1)a</math> | |||
<math>P=100\tan{d}=100\tan((n-1)a)</math> | |||
=== Vertex Distance === | === Vertex Distance === | ||