optical

A thin, flexible fibre with a glass core through which light signals can be sent.

A computer mouse which uses a light source to detect movement relative to a surface.

Something that deceives the eye by appearing to be other than it is.

A piece of glass or other transparent material with curved sides for concentrating or dispersing light rays.

A type of computer disk drive that reads and writes data from optical disks.

A visual impression or phenomenon produced by light.

A flat, circular plate on which data can be stored by cutting pits with a laser.

A microscope that uses visible light and a system of lenses to magnify images of small samples.

A telescope that gathers and focuses light, mainly from the visible part of the electromagnetic spectrum.

An instrument designed to assist seeing, such as a microscope or telescope.

A general term for any equipment that uses light.

A combination of optical components, such as lenses, mirrors, and prisms.

A device on a firearm that uses optics to help the user aim.