Diopter
Hawkins' Electrical Dictionary · 1915 · p. 3
—A unit for expre ing the refractive power of a lens, being the power of a lens whose focal distance is equal to one meter.
Bu kavram başka kaynaklarda da geçiyor
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Student's Medical Dictionary (1896)
An Illustrated Encyclopedic Medical Dictionary (1892)
Prism-diopter
—
The Optical Dictionary (1904)
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