catadioptric
/ˌkætədaɪˈɑptrɪk/
adjective
- Relating to or using a combination of lenses (refraction) and mirrors (reflection) to focus light, especially in optical instruments like telescopes and cameras.
- Many modern binoculars are catadioptric, combining lenses and mirrors for better performance.
- The telescope uses a catadioptric design to produce clear images in a compact tube.
- The photographer chose a catadioptric lens for its lightweight and long focal length.