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Old 09-23-2008
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Icon5 462 nanometers

The LED's I used in my cluster are 462 nanometer blue, the ones I bought to do my door handles are 472 nanometer blue. Will I be able to see the difference or is 10 nanometers basically nothing.

Probably not too many will be able to help here, but I was just wondering....
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Old 09-23-2008
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Nano, a prefix meaning "dwarf" in Greek, also means one billionth. A nanometer is therefore one billionth of a meter. To provide a sense of scale, here are the measurements of some readily visible objects.

• The period at the end of this sentence is almost 500,000 nanometers in diameter.

• A penny is about 19,000,000 nanometers wide.

• A basketball is about 239,506,000 nanometers wide.

• Stanford basketball player Brooke Lopez is about 2,130,000,000 nanometers tall.
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Old 09-23-2008
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^ lol. . . .nice
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Old 09-23-2008
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I would say no... unless the extra 10 nanometers somehow changes the color. That would be more of a how do LED's work type question though. And I don't know the answer to that.
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Old 09-23-2008
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bucky, you must deal with nanometers or something. i deal with ten thousands of a inch everyday and i thought that was small lol.
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Old 09-23-2008
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20,000 leagues under the sea?
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Old 09-23-2008
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Quote:
Originally Posted by SniperX103 View Post
I would say no... unless the extra 10 nanometers somehow changes the color. That would be more of a how do LED's work type question though. And I don't know the answer to that.
It does change the color, thats the whole point. Different colors have different wavelenghts... thats the whole idea here, I thought it was common knowledge.

Color Wavelength (nm)
Red 780 - 622
Orange 622 - 597
Yellow 597 - 577
Green 577 - 492
Blue 492 - 455
Violet 455 - 390
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Old 09-23-2008
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Originally Posted by timpat92855 View Post
bucky, you must deal with nanometers or something. i deal with ten thousands of a inch everyday and i thought that was small lol.
nah google is your friend...
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Old 09-23-2008
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Quote:
Originally Posted by Jp7 View Post
It does change the color, thats the whole point. Different colors have different wavelenghts... thats the whole idea here, I thought it was common knowledge.

Color Wavelength (nm)
Red 780 - 622
Orange 622 - 597
Yellow 597 - 577
Green 577 - 492
Blue 492 - 455
Violet 455 - 390
I guess not to me. To me, LED's have always just been different colored lights.

Hahaha... anyway, here's what I found.



Using that scale the 462 vs. 472 don't look very different at all. I think you'll be good to go.
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Old 09-24-2008
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shucks... I just got the 472s and you can really see a difference. the 462 is much more violet-ey.
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Old 09-24-2008
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Originally Posted by SniperX103 View Post
I would say no... unless the extra 10 nanometers somehow changes the color. That would be more of a how do LED's work type question though. And I don't know the answer to that.
Nanometer is the wavelength. Wavelength determines color. If it is really only 10nm apart, it will be very hard, if not impossible to distinguish. You are talking Purpleish-blue compared to purpleishh blue.
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Old 09-24-2008
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Nanometer is the wavelength. Wavelength determines color. If it is really only 10nm apart, it will be very hard, if not impossible to distinguish. You are talking Purpleish-blue compared to purpleishh blue.
No

I just got the 472's i ordered and compared them to the 462's i've had.


It is very easy to distinguish. Blue vs Indigo almost.
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Old 09-25-2008
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No

I just got the 472's i ordered and compared them to the 462's i've had.


It is very easy to distinguish. Blue vs Indigo almost.
Then the diodes arent accurate. A true 10nm difference is hardly distinguishable.
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