Dioptric

[dai'ɒptrik]

Definition

(a.) Of or pertaining to the dioptre, or to the metric system of numbering glasses.

(n.) A dioptre. See Dioptre.

(a.) Alt. of Dioptrical

Typed by Clint

Definition

adj. pertaining to dioptrics.—ns. Diop′ter an ancient form of theodolite: the index-arm of a graduated circle; Diop′trics the part of optics which treats of the transmission of light from one medium to another.—Dioptric system in lighthouses (as opposed to reflecting system) illumination from a central lamp whose rays are transmitted through a combination of lenses.

Checked by Dylan