- Optics is a branch of physics that is the study of light and vision.
An example of optics is the technology of an astronomical telescope.
Origin of optics; from optic
noun(used with a sing. verb)
optics - Computer Definition
The branch of physics dealing with the nature and properties of electromagnetic energy in the light spectrum and the phenomena of vision. In the broadest sense, optics deals with infrared light, visible light, and ultraviolet light. See also electromagnetic spectrum, infrared light, physics, ultraviolet light, and visible light.