| A | B |
|---|
| optics | study of visable light and ways in which visible light interacts with the eye to produce vision |
| law of reflection | the angle of reflection requals the angle of incidence |
| regular reflection | reflection of parallel light rays in the same direction |
| diffuse reflection | reflection of parallel light rays in many different directions |
| image | picture of an object formed by waves of light |
| convex | parallel light rays move away from each other |
| concave | parallel light rays move toward each other |
| focal point | the point in a mirror at which the rays meet |
| lens | clear optical tool that refracts light |
| focal length | distance from the center of the lens to the lens's focal point |
| cornea | transparent membrane that covers the eye where light enters |
| pupil | circular opening that controls how much light enters the eye |
| retina | part of the eye that contains specialized cells that respond to light |
| laser | device that produces an intense, concentrated beam of light that is brighter than sunlight |
| fiber optics | technology based on the use of laser light to send signals through transparent wires passed through these |
