Download - The Light Emitting Diode (LED)
The Light Emitting Diode (LED)
Greg Carlson
Nerd Nite Siem Reap Photo by: Mathieu Young
To be covered in the next 18 slides:
• History
• The Science of LEDs
• Why LEDs are so freakin’ awesome
• Cost
• 40 sec Case Study
• Common LED uses
Oleg’s Discovery
• 1920’s Russian radio technician and inventor by the name of Oleg Vladimirovich Losev
• Noticed that diodes used in radio receivers emitted light when current was passed through them
Oleg Losev
The Science
electroluminescence
1,200 hrs
• 60 watts • $10 /year • 85 BTUs • Fragile
8,000 hrs
• 14 watts • $2.50 / year • 30 BTUs • Fragile • Mercury • Temp Sensitive
50,000 hrs
• 7 watts • $1 / year • 3.4 BTUs • Durable • Non-toxic • = freakin’
awesome
Incandescent Compact Florescent LED
Why LEDs are so freakin’ awesome
60W
1,200 hrs
• 60 watts • $10 /year • 85 BTUs • Fragile
8,000 hrs
• 14 watts • $2.50 / year • 30 BTUs • Fragile • Mercury • Temp Sensitive
50,000 hrs
• 7 watts • $1 / year • 3.4 BTUs • Durable • Non-toxic • = freakin’
awesome
Incandescent Compact Florescent LED
Why LEDs are so freakin’ awesome
60W
1,200 hrs
• 60 watts • $10 /year • 85 BTUs • Fragile
8,000 hrs
• 14 watts • $2.50 / year • 30 BTUs • Fragile • Mercury • Temp Sensitive
50,000 hrs
• 7 watts • $1 / year • 3.4 BTUs • Durable • Non-toxic • = freakin’
awesome
Incandescent Compact Florescent LED
Why LEDs are so freakin’ awesome
60W
Pricing
50Watt Incandescent Replacement = $14.50
40 sec. LED case study
• Portland, Oregon USA
• Replace 13,000 Incandescent traffic light lamps with LEDs (150 watts each)
Project Highlights
Automotive Use
“Due to their smaller size, increased durability, increased lifespan and low energy consumption, LED lighting systems will undoubtedly take over as the primary lighting source in future vehicles.” -Audi Motors
Style…
The Peace Bridge connecting Buffalo, NY, USA and Ft. Erie Ontario, CA
Design
Practicality
The MoonLight by Kamworks
Photo by: Mathieu Young
Photo by: Mathieu Young
Questions?
I Invented This
