Examples from the Web for dioptric
Two methods of lighting have been employed—the Catoptric and the Dioptric systems.Grace Darling|Eva Hope
Mercury rotation; univalve 164 in azimuth, with 164 dioptric mirror in rear.
A new lantern and dioptric apparatus were erected on the tower in 1902.
We have (with the consent of the author) altered these to the dioptric system.Schweigger on Squint|C. Schweigger
This optic embodied the first combination of dioptric and catoptric elements in one design (fig. 34).