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[technologyreview] LEDs that Burn 10 Times Brighter - Page 2

post #11 of 30
paint the casing of the LED in flat white ceiling paint then.... BAM instantly diffused perfectly.
    
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post #12 of 30
Quote:
Originally Posted by RussianGrimmReaper View Post

You're under the assumption it needs to send light in ALL directions! Why not just meet in the middle? Have a small array of ultra bright LEDs (let's say 3-5) and then place a divergent lens in front of them. It won't spread the light in ALL directions, but it will do it enough! How often do you use a lamp after all? Most of the time, your lights are in your ceiling. When that's the case, they don't need to illuminate the area behind them.
You're under the assumption that there is an assumption. What the market wants has clearly been established. The reality is that the market wants drop in replacements of existing incandescent light bulbs. Go ask GE or Philips. If your product does not come close to this, it will not sell.

Quote:
Originally Posted by ESP View Post

paint the casing of the LED in flat white ceiling paint then.... BAM instantly diffused perfectly.
No.... it would still be diffused in a single direction.

Quote:
Originally Posted by Solarin View Post

I wonder how much money they were "endowed" with from the government to develop these?
Don't make this political... especially if you do not fully understand how the process works. The primary investors are here: http://soraa.com/about
Edited by DuckieHo - 2/14/12 at 8:48am
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post #13 of 30
Quote:
Originally Posted by DuckieHo View Post

Don't make this political... especially if you do not fully understand how the process works. The primary investors are here: http://soraa.com/about

Sardonic

sar·don·ic adj \sär-ˈdä-nik\

Definition of SARDONIC

: disdainfully or skeptically humorous : derisively mocking
sar·don·i·cal·ly adverb

Origin of SARDONIC

French sardonique, from Greek sardonios
First Known Use: 1638

Forgive me if I view highly acclaimed green energy alternatives in a sardonic (please read above for reference) light. The overwhelming majority of them (from Tesla to Ener1) thrive on government loans. I made an off-the cuff- statement, and as such I do not require a prerequisite level of knowledge of the given field to do so.
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post #14 of 30
Quote:
Originally Posted by DuckieHo View Post

LED's will not replacement light bulbs for ambient lighting until they solve the directional lighting limitation.

That, the initial cost and the quality of the light. Having tried a few of the commercially available bulbs I have to say they would be fine in an office environment but I don't want one in my home. The light seems too blue, cold and harsh compared to the softer, yellower, warmer light of an incandescent (subjective I know). I know that better white LEDs have been developed but they have yet to make it to the shelves (at least to the shelves that I have found). When they can make a LED which mimics a black body radiator in the visible spectrum then I will be sold.

I would love to replace my lights with LED lights, my living room lights alone consume 200W, but it just isn't feasible for me right now. Hopefully this will help slightly.
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post #15 of 30
Quote:
Originally Posted by DuckieHo View Post

LED's will not replacement light bulbs for ambient lighting until they solve the directional lighting limitation.

Well, I welcome any progress with LEDs; lightbulbs are already illegal in the EU.
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post #16 of 30
Quote:
Originally Posted by xeeki View Post

Well, I welcome any progress with LEDs; lightbulbs are already illegal in the EU.

Wait, what?
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post #17 of 30
Quote:
Originally Posted by Solarin View Post

Forgive me if I view highly acclaimed green energy alternatives in a sardonic (please read above for reference) light. The overwhelming majority of them (from Tesla to Ener1) thrive on government loans. I made an off-the cuff- statement, and as such I do not require a prerequisite level of knowledge of the given field to do so.
I know what sardonic means.... never less, your statement could incite political discussion regardless of intent. It was not a statement of fact but implication of further discussion/commentary.
Quote:
Originally Posted by GingerJohn View Post

That, the initial cost and the quality of the light. Having tried a few of the commercially available bulbs I have to say they would be fine in an office environment but I don't want one in my home. The light seems too blue, cold and harsh compared to the softer, yellower, warmer light of an incandescent (subjective I know). I know that better white LEDs have been developed but they have yet to make it to the shelves (at least to the shelves that I have found). When they can make a LED which mimics a black body radiator in the visible spectrum then I will be sold.
I would love to replace my lights with LED lights, my living room lights alone consume 200W, but it just isn't feasible for me right now. Hopefully this will help slightly.
You're right... The color temperature is another big issue but like you mentioned, there is good progress on that front.
Quote:
Originally Posted by xeeki View Post

Well, I welcome any progress with LEDs; lightbulbs are already illegal in the EU.
You mean incandescent lightbulbs... A US ban was suppose to go into effect this year but was defunded.
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post #18 of 30
Quote:
Originally Posted by DuckieHo View Post

I know what sardonic means.... never less, your statement could incite political discussion regardless of intent. It was not a statement of fact but implication of further discussion/commentary.

Perish the thought...
Quote:
You mean incandescent lightbulbs... A US ban was suppose to go into effect this year but was defunded.

Careful now. We don't want a discussion about government bans do we?
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post #19 of 30
Quote:
Originally Posted by Solarin View Post

Wait, what?

Yes, you can't buy them anymore. You can still use your left-over lightbulbs, though.
Quote:
Originally Posted by DuckieHo View Post

I know what sardonic means.... never less, your statement could incite political discussion regardless of intent. It was not a statement of fact but implication of further discussion/commentary.
You're right... The color temperature is another big issue but like you mentioned, there is good progress on that front.
You mean incandescent lightbulbs... A US ban was suppose to go into effect this year but was defunded.

Oh, okay... Care to explain the difference?
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post #20 of 30
Quote:
Originally Posted by Solarin View Post

Careful now. We don't want a discussion about government bans do we?
It is a statement of fact. It is what it is. There was no injection of personal opinion or commentary.
Quote:
Originally Posted by xeeki View Post

Oh, okay... Care to explain the difference?
The sales of a light bulb type was banned.

incandescent light bulb
fluorescent light bulb
LED light bulb
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