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Duke University Students:

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Scott McCain. Mohan Shankar. OSA Duke Student Chapter. Light and Optics. What is Light? ... What is white light made of? White light is made from all the colors ... – PowerPoint PPT presentation

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Title: Duke University Students:


1
Duke University Students
  • Evan Cull
  • Scott McCain
  • Mohan Shankar
  • Andrew Portnoy
  • Luis Garcia
  • Cristina Fernandez

OSA Duke Student Chapter
2
Light and Optics
3
What is Light?
  • Light is an electro-magnetic wave
  • Electro -gt electricity
  • Magnetic -gt magnets
  • Lets us see

4
Light is Fast!
  • 186,282 miles per second
  • 670,616,629 miles per hour

Sun
Earth
5
Where can we get light?
6
What is white light made of?
  • White light is made from all the colors in the
    rainbow
  • Look closely at a Television
  • Made of Red, Green, and Blue dots

7
How can we split white light into colors?
A Prism
Or A Grating
8
Controlling light
  • Reflecting with mirrors
  • Bending with lenses (Refracting)
  • Blocking, like a shadow in the sun

9
Optics in Nature
10
Why do we control light?
  • Your eyes
  • Eyeglasses and contact lenses
  • Lenses for TV, movie, and photographic cameras
  • Photocopiers and fax machines
  • Binoculars and telescopes
  • Microscopes and magnifiers

11
More Uses
  • Projectors (overhead, movie, slide, TV)
  • CD players
  • Supermarket product code laser scanners
  • Weather and spy satellites
  • Medical systems (to look inside the body)
  • Solar energy systems

12
Illusions
13
Illusions
14
Illusions
15
Illusions
16
Illusions
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