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How Does polarized Light Behave and What is 3-D?

How Does polarized Light Behave and What is 3-D?. Filtering Out the Waves. What is Polarized Light?. Light travels in waves Light waves are transverse Sound waves are longitudinal. Longitudinal. Transverse. How do light waves move?. Light is non-polarized and vibrates in all directions

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How Does polarized Light Behave and What is 3-D?

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  1. How DoespolarizedLight Behave and What is3-D? Filtering Out the Waves

  2. What is Polarized Light? • Light travels in waves • Light waves are transverse • Sound waves are longitudinal Longitudinal Transverse

  3. How do light waves move? • Light is non-polarized and vibrates in all directions • It has horizontal and vertical movements

  4. How Does Polarization Happen? • When a plane of light is selected or filtered out, it becomes polarized • Glare from the water or road is partially polarized from the reflection of light

  5. Using Polarized Sunglasses • Polarizing filters select a vertical plane of light movement

  6. Polarizers Can Block Out Light • Two polarizing filters, rotated 90° opposite of each other can completely block light

  7. Your Turn… AnaglyphOnline Activity

  8. How Does 3-D Viewing Work • Our eyes are set about 2.5 inches apart • Each eye takes a slightly different view of the same object

  9. 3-D Viewing Continued • The brain combines the similarities of the object • It also adds up the differences that each eye observes • The 2-eye viewing combines to form a 3-D stereo image

  10. How Does 3-D Stereograms or Anaglyph Work? • 3-D Stereograms require the person to focus past the page or computer screen • Put your nose close to the page or computer screen and slowly move away till you can view the 3-D object

  11. Anaglyphs Continued • Requires glasses with a red left lens and a cyan right lens • The left eye only views an image that selects the red from the photo • The right eye only views an image that selects the cyan from the photo

  12. Anaglyphs Continued • The images on the photo are slightly offset • Your brain takes the red and cyan images with slightly different views and combine to form a binocular stereopsis

  13. Anaglyph Continued

  14. How Do 3-D TV and Movies Work? • A 3-D slide show or movie has one horizontally polarized view and another vertically polarized view. • The viewer wears polarizing eyeglasses with the lens axes also at right angles.

  15. How Do 3-D TV and Movies Work?

  16. Homework • Review Chapter 27 and 28 • Answer Ques. 20, 22, 23, 46, 64

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