Diopters

Diopter, diopter - a system of “linked” lenses, used to adjust the eye of an optical instrument using an eyelet. Quite a lot of diopters were invented, and historically, depending on their purpose, they were divided into several types: ocular (for a telescope - periscope), ocular-ocular for binocular sights, ocular field, etc. There were also objective

Diopter. In ophthalmology, a quantity characterizing the change in direction of a parallel beam of rays passing through a transparent medium or optical glass, as well as an artificial lens, etc., responsible for the refraction of light rays and perceived by the eye.

Due to diffraction