History of the LED Light

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History of the LED Light

Postby Katahu » Fri Jan 05, 2007 8:57 pm

How LEDs have managed to put Edison's bulb to shame.

I'm pretty amazed by how far LEDs have evolved to the point where they even have their "moore's law". :o
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Re: History of the LED Light

Postby Chris_F » Fri Jan 05, 2007 9:47 pm

God I hope people never use LEDs to light their homes.  LEDs may be extremely efficient, but they also produce very poor color rendering, giving the light a miserable feel.  Accent lighting yes, but light my entire house with LED?  I'll take compact florescent thanks.  Maybe some day...

What amazes me about LEDs isn't the speed at which they're advancing, it's how quickly they hit the consumer market after their discovery.  Usually when something new is invented it takes a good 10 years to show up in consumer's hands.  LEDs seem to hit the streets within months of coming out of a test tube.
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Re: History of the LED Light

Postby Ravang » Fri Jan 05, 2007 9:56 pm

I just brought my 1st LED flashlight just about 1 month ago and it is super bright and the light bulb doesn't burn out or break when dropped :D [smiley=grin.gif]
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Re: History of the LED Light

Postby PsychoDiablo » Fri Jan 05, 2007 11:25 pm

i had led lights put in my trucks tail lights. Real nice, and brite
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Re: History of the LED Light

Postby expat » Sat Jan 06, 2007 5:45 am

I just brought my 1st LED flashlight just about 1 month ago and it is super bright and the light bulb doesn't burn out or break when dropped :D [smiley=grin.gif]



Super bright it is, but the beam is only good for a very short distance. Also LED light does tend to mask fluid spills/leaks. For example, got s fuel or oil leak on an aircraft surface, it is very had to see. We tried LED torches out a month or so ago. After 2 nights we went back to Mag lites.

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Re: History of the LED Light

Postby Woodlouse2002 » Sat Jan 06, 2007 8:27 am

From what I've seen of LED torches they all seem to rely on the bulb alone to produce the light. Any torch with a filament bulb will be designed to focus the light, sometimes through a lense to brighten it up. LED's don't seem to ever do this which is why I think the beam doesn't travel far.
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Re: History of the LED Light

Postby Katahu » Sat Jan 06, 2007 10:10 am

God I hope people never use LEDs to light their homes.


People will have a very different view when they see how much they'll save on energy bills. ;)
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Re: History of the LED Light

Postby Woodlouse2002 » Sat Jan 06, 2007 11:26 am

I'm sure people already are using to light their homes. Their certainly being used more and more on board boats. Apparently the way to make the light seem less cold is to have a cluster of white LED's and have a couple of either yellow or red ones mixed in to give some warmth to it.
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Re: History of the LED Light

Postby Chris_F » Sat Jan 06, 2007 7:16 pm

God I hope people never use LEDs to light their homes.


People will have a very different view when they see how much they'll save on energy bills. ;)

Not many people have converted to compact flourescents yet and that's a bulb that produces a very nice quality light at a lower price than LED lights and they're exceptionally efficient (though not as efficient as LEDs).
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