1. OPTICAL DEVICES AND TECHNOLOGY Hi! How are you?

2. Technology: Cell Phone  What is it? A device that allows you to make a receive telephone calls.

3. Relation to Optics*  *This is an important topic!

4. What is Optics?  Study of properties of light, including visible, ultraviolet and infrared light

5. Relation to Optics*  Use electromagnetic waves to transmit information (microwaves)  Liquid crystal display (LCD)  Light polarized  Liquid crystals transmit polarized light  -critical can be changed by electric current *This is an important topic

6. Impact on Society! **  How does the technology affect...  Our everyday lives?  Jobs?  Education?  ** This section is even more importanter

7. Positive Impact on Society  Enables wireless communication across long distances (calling, text messaging)  Eliminates paper waste (i.e. letters)

8. Negative Impact on Society  Eliminates face to face communication, less personal interaction  Radiation damage caused by radiation (cancer, headaches); proximity to head makes it more dangerous

9. Your Task  1. Pick a technology  2. What is it’s relation to optics  3. Positive impact on society (2)  4. Negative impact on society (2)  5. Have fun and enjoy life (or something like that)

10. Two Way Mirror

11. Charged Coupling Device

12. Light Emitting Diode

13. Night Vision Goggles

14. Anti-glare glasses

15. Solar cells

16. Fibre Optic cable

17. Thermal Imaging

18. Head’s Up Display

19. Other cool optics stuff...  Escher’s Mirror Puzzle http://www.youtube.com/user/vat19com?v=BnuehP bgFpI http://www.youtube.com/user/vat19com?v=BnuehP bgFpI