Catoptric
Part of speech: adjective
Definition: of, relating to, or produced by mirrors or reflections
Optics
Part of speech: noun
Definition: The physics of light and vision.The light-related aspects of a device.Perception, image, public relations.The physics of light and vision.
Example sentence: There is a new way with very very tiny fiber optics, which give an enormous high resolution. There are many many thousand fibers, very very close together with a very small diameter.