Download Chapter 18 Vocabulary – Optics and Light

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Daylighting wikipedia, lookup

Bicycle lighting wikipedia, lookup

Light pollution wikipedia, lookup

Doctor Light (Arthur Light) wikipedia, lookup

Bioluminescence wikipedia, lookup

Doctor Light (Kimiyo Hoshi) wikipedia, lookup

Grow light wikipedia, lookup

Photopolymer wikipedia, lookup

Cataract wikipedia, lookup

Gravitational lens wikipedia, lookup

Chapter 18 Vocabulary – Optics and Light
1. optics – the study of visible light and the ways in which visible
light interacts with the eye to produce vision.
2. law of reflection – states that the angle of reflection equals the
angle of incidence.
3. regular reflection – the reflection of parallel light rays all in the
same direction.
4. diffuse reflection – the reflection of parallel light rays in many
different directions.
5. image – a picture of an object formed by waves of light.
6. convex – curved outward.
7. concave – curved inward.
8. focal point – the point at which the rays meet after reflecting
from a concave mirror or being refracted by a convex lens.
9. lens – a clear optical tool that refracts light.
10.focal length – the distance from the center of the lens to the
lens’s focal point.
11.cornea – a transparent membrane that covers the eye.
12.pupil – a circular opening that controls how much light enters
the eye.
13.retina – structure of the eye that contains specialized cells that
respond to light and where the image of an object is projected.
14.laser – a device that produces an intense, concentrated beam of
light that is brighter than sunlight.
15.fiber optics – technology based on the use of laser light to send
signals through transparent wires called optical fibers.