| Answer | Crossword Clue |
|---|---|
| stereoptics | the optics of stereoscopy |
| stereoscopies | STEREOSCOPY, the use of a stereoscope |
| stereoscopic | of or relating to stereoscopy or the stereoscope also STEREOSCOPICAL |
| stereoscopical | of or relating to stereoscopy or the stereoscope also STEREOSCOPIC |
| dioptrics | The branch of optics that deals with refraction |
| catoptrics | the branch of optics which is concerned with reflected light |
| chromatics | the science of colors; that part of optics which treats of the properties of colors |
| photonics | The branch of technology concerned with the properties and transmission of photons, for example in fiber optics |
