~Exhibit Ideas~

~Exhibit Ideas~

Fiber Optics & Light Guides Presentation by: CGIE Cambridge Girls In Engineering July 1st August 2nd, 2002 CGIE Girls Get Set 2002 Mia School: Cambridgeport School Age: 13 yrs old

Hobbies: Computer Games, Sports CGIE Girls Get Set 2002 Lydia School: Martin Luther King School Age: 13 yrs old Hobbies: Drawing & Painting CGIE Girls Get Set 2002

Annie School: King Open School Age: 14 yrs old Hobbies: Dancing, Swimming, and Basketball CGIE Girls Get Set 2002 Ashlee School: King Open School Age:

14 yrs old Hobbies: Swimming, Singing, volleyball, CGIE Girls Get Set 2002 Laurie School: Cambridgeport School Age: 12 yrs old Hobbies: Playing the piano, listening to music,

shopping, and writing CGIE Girls Get Set 2002 Overview of Presentation Basic knowledge, use, and structure of fiber optics and light guides how they work, pros/cons, applications, etc. Group project deciding on ideas, prototypes, ordering, building, etc. Final Exhibit CGIE Girls Get Set 2002 What Are Fiber Optics? Long, thin

strands Glass/Plastic Diameter of a human hair Come in bundles Able to transmit signals or images over long distances CGIE Girls Get Set 2002 What are Light Guides? Long rods that come in different shapes and sizes Glass/ plastics able to transmit light

Some are flexible Work like fiber optics CGIE Girls Get Set 2002 Differences Between Fiber Optics and Light Guides Light Guide- long, variety of different diameters, do not concentrate light as well as fiber optics Fiber Opticssmall, thin, transmit light more efficiently, flexible

CGIE Girls Get Set 2002 Basic Structure of Fiber Optics and Light Guides * Layer one: Jacket or Buffer Coating *Layer two: Cladding *Layer three: Core CGIE Girls Get Set 2002 How Do They Work The core has a higher index of refraction than the cladding The light

travels through the core by constant reflection from the cladding CGIE Girls Get Set 2002 Advantages & Disadvantages of Fiber Optics Advantages Lightweight Non-flammable

Flexible Carry signals more efficiently than traditional methods Disadvantage s Break easily Small & hard to detect Expensive CGIE Girls Get Set 2002 Advantages & Disadvantages of Light Guides

Advantages: More durable Light travels through Less expensive Available in different sizes Disadvantages: Scratches easily Some are breakable Light can get lost if scratched too much

CGIE Girls Get Set 2002 Applications of Fiber Optics Medical instruments Communications networks Computers and printers CGIE Girls Get Set 2002 Where did Fiber Optics come from? In the late 1800s scientist John Tyndall found using an illuminated tank, light

could travel through a curved stream After years of experimenting, he found that light and images were able to be carried through glass rods CGIE Girls Get Set 2002 How We Decided on Fiber Optics and Light Guides We were going to use lasers and mirrors to reflect light through a maze It was suggested that we do something with fiber optics

We did research and found out about light guides We brainstormed ideas CGIE Girls Get Set 2002 Exhibit Ideas Our ideas were: Spider Girl Teddy Bear Medusas Head Alphabet Spaghetti Maze

CGIE Girls Get Set 2002 Spider Girl CGIE Girls Get Set 2002 Teddy Bear CGIE Girls Get Set 2002 Medusas Head CGIE Girls Get Set 2002 Spaghetti Maze CGIE Girls Get Set 2002

Final Decision We decided to do the spaghetti maze as our main project New title for the exhibit: Light It Up CGIE Girls Get Set 2002 Prototypes CGIE Girls Get Set 2002 What is Light It Up?

Various fiber optics and light guides shaped with bends and curves Users of the exhibit shine the light in one end and see where it comes out Putting colored filters in front of the light changes how it looks coming out of the other end This exhibit shows how light travels through fiber optics and light guides CGIE Girls Get Set 2002 Discussions CGIE Girls Get Set 2002 Experiments Different lengths & diameters of light guides

Different light sources flashlights vs. LEDs Bending light guides with different heat sources stove vs. blowtorch Filters / colors CGIE Girls Get Set 2002 Problems We Came Across What kind of lights are we going to use? How powerful will they be? How will the lights be set up? What diameter of the light guides are we using? What are the dimensions of the exhibit?

What is the cost of the materials? Are the light guides strong enough to carry the light? CGIE Girls Get Set 2002 More Issues Light cannot travel through a 30 foot long light guide Maximum length of each light guide is 6 feet Different frustrations with team dynamics CGIE Girls Get Set 2002

Ordering Materials Different types of light guides & fiber optics Lights (LED & reflectors) Color Filters Wire for prototype Light switches CGIE Girls Get Set 2002 Budget Item 1mm Acrylic Fiber 3mm Acrylic Fiber 1mm round optical fiber 3.2mm round optical fiber 2mm red fluorescent round fiber 2mm yellow fluorescent round fiber 2mm green fluorescent round fiber

2mm blue fluorescent round fiber 1mm orange fluorescent round fiber 6.3mm jacketed fiber optic bundle .25"extruded acrylic rod 6mm glass rod LED 6400 MCD, 20 deg. LED 6400 MCD, 20 deg. LED reflectors Laminating Colored Filters 48x48 clear cast acrylic sheet 90 degree Angle Outlet Strip 36x48 clear cast acrylic sheet Clear cast acrylic rod 22mm panel cutout plastic switch Borosilicate glass rod, 6 mm, 48'' 24x48 clear cast acrylic sheet 19" wide rack-mount outlet strip

Flourescent optical fiber-Y G B V Flourescent optical fiber-Red 0.06" Flourescent optical fiber-Red 0.1" Flourescent optical fiber-Orange-0.04" Plastic optical fiber Acrylic optical fiber Stranded single conductor wire Shipping and handling fees Company Edmund industrial Edmund industrial Optical polymer reasearch Optical polymer reasearch Optical polymer reasearch Optical polymer reasearch Optical polymer reasearch Optical polymer reasearch

Optical polymer reasearch Edmund industrial McMaster-Carr McMaster-Carr www.theledlight .com www.theledlight .com www.theledlight .com Modern Laminating B.N. Productions Inc. McMaster-Carr McMaster-Carr McMaster-Carr McMaster-Carr McMaster-Carr McMaster-Carr McMaster-Carr McMaster-Carr South Coast Fiber Optics

South Coast Fiber Optics South Coast Fiber Optics South Coast Fiber Optics South Coast Fiber Optics South Coast Fiber Optics McMaster-Carr CGIE Individual Cost $ $ $ $ $ $ $ $

$ $ $ $ $ $ $ 1.30 3.50 0.13 1.30 4.59 4.59 4.59 4.59 1.05 8.70

0.89 4.04 17.40 17.40 1.20 $ 6.50 $ 118.13 $ 47.02 $ 96.65 $ 3.98 $ 11.90 $ 5.54

$ 20.91 $ 47.02 $ 1.40 $ 0.80 $ 2.40 $ 0.32 $ 0.14 $ 0.72 $ 24.21

Girls- Get Quantity 10 10 115 50 1 1 1 1 1 18 3 1 1 1 1

48 8 2 2 1 12 7 1 1 1 12 3 3 3 115 35 1 Set -2002

Total Cost $ 13.00 $ 35.00 $ 14.95 $ 65.00 $ 4.59 $ 4.59 $ 4.59 $ 4.59

$ 1.05 $ 156.60 $ 2.67 $ 4.04 $ 17.40 $ 17.40 $ 1.20 $ 80.00 $ 52.00

$ 236.26 $ 94.04 $ 96.65 $ 47.76 $ 83.30 $ 5.54 $ 20.91 $ 47.02 $ 16.80

$ 2.40 $ 7.20 $ 0.96 $ 16.10 $ 25.20 $ 24.21 $ 500.00 Total Estimated Cost =

$1703.02 Lets Do It! CGIE Girls Get Set 2002 Final Exhibit: Light It Up CGIE Girls Get Set 2002 SPECIAL THANKS to CGIE Girls Get Set 2002 Questions? CGIE Girls Get Set 2002

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