HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
TJ McDermott
User Rank
Blogger
Re: Important subject
TJ McDermott   10/5/2011 9:49:07 PM
NO RATINGS
I'm visiting a customer on the East coast this week.  While driving, I've noticed that the city opted for LED traffic signals.  They come to one's attention because about 30% of the LEDs in the lights are non-functional (the green lights are quite noticable).  Is there really a longevity gain by switching to LEDs? 

William K.
User Rank
Platinum
what design engineers need to know :Led Lighting
William K.   10/5/2011 9:31:14 AM
NO RATINGS
The information presented is certainly very useful, and presented in an interesting and usable manner. But the information about heat removal is missing, it appears. Since heat is the primary challenge in LED lighting, it is important, even vital, that anyone designing LED lighting understand both the heat generation and the heat removal mechanisms. After all, the selling point of the more expensive solid state lighting systems is reliability and long life, the two things that heat limits most.

Charles Murray
User Rank
Blogger
Important subject
Charles Murray   10/4/2011 3:25:47 PM
NO RATINGS
Kudos to the author for writing about a necessary and important subject. Given the fact that LEDs are about to take over in hundreds of new applications in the next ten years, ranging from automobiles to aircraft to medical equipment, a primer on this subject is badly needed.  



Partner Zone
Latest Analysis
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
Software developers beware: Your open-source components may not be secure.
For companies that have gone into corporate venturing, sponsoring and nurturing startup companies, the subsequent IP transfer is tricky.
Learn how to build Raspberry Pi controllers using Python during this free Continuing Education Center class presented by Design News and Digi-Key.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 6 - 10, Building Raspberry Pi Controllers with Python
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service