dioptrics
/daɪˈɑptrɪks/
noun
- The branch of optics that deals with the refraction of light, especially through lenses.
- The professor specialized in dioptrics and designed new types of eyeglass lenses.
- The textbook chapter on dioptrics explained how light bends when passing through water.
- Students in the physics lab studied dioptrics to understand how magnifying glasses work.