what you want to know…

What you want to know…How to make a laser Can lasers cut things? 10 pts

Colorblindness Are all animals? Why does it happen?

10 pts

Cameras How do they work? Why do they distort?

10pts

Camera Filters 5 pts

CREATE YOUR OWN Will discuss

Are lightsabers possible? 5 pts

Glow in the dark 5 pts

Double Rainbows / Rainbows 5 pts

How does a light bulb work? 5 pts

Car mirrors Why are objects closer . than they appear?

5 pts

What is a black light? 10 pts

3-D TelevisionA Scientific Perspective

History of 3D Imaging• 3D imaging in not new

• Been around for more than 150 years• 1st patented Sir Charles Wheatstone 1838

• Stereography

3DTV Begins• “3DTV: It’s an Eye-Opener”

• The first domestic 3D Television broadcast • Wednesday night 3/24/2010• Rangers vs. Islanders NHL game

• Described as “game-changing experience”

Photos: multichannel.com

How 3D Works• Binocular Vision

• ancient Greece – Euclid• Eyes are 2 inches apart• Each ‘sees’ slightly

different picture• Brain puts it together to

provide depth

How 3D Works• We can simulate this by viewing two pictures

taken from slightly different angles while cross-eyed

RED / BLUE (anaglyph) 3D• When light passes through a red

or blue filter, it filters out that particular wavelength of light

• Taking advantage ofthis and combiningit with binocular visionwe get basic 3D glasses

Polarized 3D• Polarizing the two

different images projected on the screen allows us to do this in a different way

• Does not distort color

New TV’s• Different Type of Technology…

The Active “blocking” method

Lenticular Displays

Sources• http://science.howstuffworks.com• New York Times Online