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Mirrors and Lenses

TermDefinition
lens a transparent object that refracts light waves such that they converge or diverge to create an image
real image an image that is formed by the intersection of light rays: a real image can be projected on a screen
concave curved or rounded inward like the inside of a spoon
converge to come together; a converging lens or mirror causes parallel beams of light to come together at a single point
cornea a transparent membrane that covers the iris and pupil of the eye; much of the eye’s refraction occurs as light passes
diverge to move apart; a diverging lens or mirror causes parallel beams of light to spread apart as if they came from a single point
reflection he bounding back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
refraction the bending of a wave front as the wave front passes between two substances in which the speed of the wave differs
virtual image an image from which light rays appear to diverge even though they are not actually focused there, a virtual image cannot be projected on a screen
retina the light-sensitive inner layer of the eye, which receives images formed by the lens and transmits them through the optic nerve to the brain
scattering describes matter that transmits light but that does not transmit an image
convex curved or rounded outward like the back of a spoon
Created by: kdominick
 

 



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