Definition of "optics" in English

noun

1. (physics) The physics of light and vision: basic optical science.

   • a PhD in the optics of liquid crystals

2. Technology that makes use of such physics: applied optical science; business lines making use of such technology.

   • defense R&D investments in both optics and electronics

3. The light-related aspects of a device.

   • the optics of liquid crystals under certain laboratory conditions
   • The optics of this telescope are particularly good.

4. (figuratively) Perception, image, public relations, especially in politics.

   • Near-synonyms: appearances, spectacle, theatrics; choreography
   • His policy prescription was sound, but the optics of its discussion were horrible.

noun

1. plural of optic