Definition that contains beam of light
- spot a lamp that produces a strong beam of light to illuminate a restricted area; used to focus attention of a stage performer
- spotlight a lamp that produces a strong beam of light to illuminate a restricted area; used to focus attention of a stage performer
- projector an optical device for projecting a beam of light
- scanning the act of systematically moving a finely focused beam of light or electrons over a surface in order to produce an image of it for analysis or transmission
- polaroid (trade mark) a plastic film that can polarize a beam of light; often used in sunglasses to eliminate glare
- grating optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum
- searchlight a light source with reflectors that projects a beam of light in a particular direction
- laser beam a beam of light generated by a laser
- tyndall effect the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue
- diffraction grating optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum