OPTICAL DEVICES AND TECHNOLOGY Hi! How are you?. Technology: Cell Phone What is it? A device that allows you to make a receive telephone calls.

OPTICAL DEVICES AND TECHNOLOGY

Hi! How are you?

Technology: Cell Phone

What is it? A device that allows you to make a receive telephone calls.

Relation to Optics*

*This is an important topic!

What is Optics?

Study of properties of light, including visible, ultraviolet and infrared light

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

Impact on Society! **

How does the technology affect... Our everyday lives? Jobs? Education?

** This section is even more importanter

Positive Impact on Society

Enables wireless communication across long distances (calling, text messaging)

Eliminates paper waste (i.e. letters)

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

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)

Two Way Mirror

Charged Coupling Device

Light Emitting Diode

Night Vision Goggles

Anti-glare glasses

Solar cells

Fibre Optic cable

Thermal Imaging

Head’s Up Display

Other cool optics stuff...

Escher’s Mirror Puzzle http://www.youtube.com/user/vat19com?v=BnuehPbgFpI