catoptrics
/kəˈtɑptrɪks/
noun
- The branch of optics that deals with the reflection of light, especially from mirrors.
- In his lecture on catoptrics, the professor explained how concave mirrors can focus light.
- The textbook on catoptrics included diagrams showing how light bounces off different surfaces.
- Ancient Greek scientists made important discoveries in catoptrics using polished metal mirrors.