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
- electron microscope a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
- slit lamp (ophthalmology) a lamp that emits a narrow but intense beam of light that enables an ophthalmologist, using a microscope, to view the retina and optic nerve
- convex lens lens such that a beam of light passing through it is brought to a point or focus