Thoughts Media.com

 


Windows Phone Thoughts

Loading feed...

Digital Home Thoughts

Loading feed...

Apple Thoughts

Loading feed...




Go Back   Thoughts Media Forums > Thoughts Media Off Topic

Reply
 
Thread Tools Display Modes
  #1  
Old 07-03-2004, 07:00 PM
Janak Parekh
Editor Emeritus
Janak Parekh's Avatar
Join Date: Aug 2006
Posts: 15,171
Default IDFuel: "LED Me Not Into Temptation"

http://www.idfuel.com/index.php?p=178&more=1&c=1

" Having seen so many cool applications, and even more misapplications of LEDs and other solid state lights, we thought it might be useful to run through some of the benefits and tradeoffs of the technology, as well as some sources for buying them, and tutorials on their installation."



If you've ever wondered how the LEDs (and, especially, that incredibly bright Bluetooth LED) in your Pocket PC works, look no further. This is a short but good read on LED technology as it currently stands.
 
Reply With Quote
  #2  
Old 07-03-2004, 07:41 PM
gorkon280
Philosopher
Join Date: Apr 2004
Posts: 545
Default good post

Good post for those who don't know how cool LED's can be. I just wish that they could make a LED bigger then most. I guess they do, but I have not seen one yet. Some light bulbs in my house I would LOVE to replace with LED based ones because them damn things always pop.
 
Reply With Quote
  #3  
Old 07-03-2004, 08:27 PM
Falstaff
Thinker
Join Date: Dec 2005
Posts: 449
Default Re: good post

Quote:
Originally Posted by gorkon280
Good post for those who don't know how cool LED's can be. I just wish that they could make a LED bigger then most. I guess they do, but I have not seen one yet. Some light bulbs in my house I would LOVE to replace with LED based ones because them damn things always pop.
Actually, instead of making larger LEDs, arrays are used for lighting. There was an apartment in London rigged with LED lighting, NY Times (free registration required) and Lumileds Info (pdf). In addition to the long time LEDs last, they are EXTREMELY efficient and produce almost no heat (i.e. wasted energy) so they can save a lot of money if used in place of traditional incandescant lighting. I'm hoping that LEDs will become more commonplace and will be used in homes.
 
Reply With Quote
  #4  
Old 07-03-2004, 10:40 PM
Tiberian
Pupil
Join Date: Aug 2002
Posts: 12
Send a message via AIM to Tiberian Send a message via MSN to Tiberian Send a message via Yahoo to Tiberian

Quote:
"For help finding the value of this resistor, refer to the LED's documentation, or sue a calculator."
This is from the second paragraph of the article. I knew we were a litigious society, but...
 
Reply With Quote
  #5  
Old 07-04-2004, 01:41 AM
corphack
Ponderer
Join Date: Jun 2002
Posts: 103

Hmmm.. Times Square NYC, New Year's Eve 2005 waiting for The Ball to drop at midnight. The Ball is built with thousands of LumiLEDs, all flashing at random, controlled by a T68i (we can tell its a T68i because of the blue LED flashing out of sequence amidst all those white LEDs) and powered by a single Duracell 9-volt transistor battery... think of the commercial possibilities! :lol:
 
Reply With Quote
  #6  
Old 07-04-2004, 04:12 AM
yslee
Thinker
Join Date: Aug 2006
Posts: 451

Hmm.. no mention of Luxeon LEDs.. now up to 5 watts, and damn bright!
 
Reply With Quote
  #7  
Old 07-04-2004, 11:20 AM
Kowalski
Pontificator
Join Date: Nov 2003
Posts: 1,208
Send a message via MSN to Kowalski

5 watts? crazy!
BTW blue LEDs are different from other colors in one way: cost.
a blue led costs 20 times other colors!
 
Reply With Quote
  #8  
Old 07-04-2004, 12:59 PM
rugerx
Ponderer
Join Date: Dec 2003
Posts: 95

I picked up a nifty array LED flashlight.

It has 8x8 rows of LED's in a square, with a enlarging lense.
Very very bright.

Rated to last 80 hrs on one set of strong D cell batteries.

Pretty nifty. Its really bright too!
 
Reply With Quote
  #9  
Old 07-04-2004, 06:36 PM
xoiph
Intellectual
Join Date: Jul 2003
Posts: 152
Send a message via AIM to xoiph

Quote:
Originally Posted by Kowalski
5 watts? crazy!
BTW blue LEDs are different from other colors in one way: cost.
a blue led costs 20 times other colors!
Blue and white LEDs cost much more because they are manufactured in a different way than your regular red/green/amber LED, and the diode is made of a completely different material, not to mention the coolness factor.

:robot: <--red LED
__________________
There's no place like 127.0.0.1
 
Reply With Quote
  #10  
Old 07-04-2004, 07:24 PM
jeffmd
Thinker
Join Date: Dec 2004
Posts: 315

anyone seen or find a place you can order actual lightbulb replacements based on led tech? (kind of like the "compact florescent lamp" designs)
 
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 09:03 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright Thoughts Media Inc. 2009