Dioptrique

"Dioptrique" typically refers to a concept in optics related to the measurement of the refractive power of lenses and optical instruments. The term is derived from "diopter," a unit of measurement used to express the optical power of a lens. One diopter is the reciprocal of the focal length in meters. In a broader context, "dioptrique" can be associated with the study of refraction and the behavior of light as it passes through various media.