Question about differring Luxeon white color hues

Orion · Jul 11, 2003

Here's the question. You have a blue LED and to make it white, you add phosphor.

An LED with too much phospher, you get a more green, 2 bin color.
An LED with just the right amount of phospher, you get a white, 3 bin color
An LED with not enough phospher, you get a more blue, 4 bin color.

What combination do you get in order to have the purple-ish beam, or 5 bin color?

Or, have I missed the concept of luxeon color differences? /ubbthreads/images/graemlins/confused.gif

Orion · Jul 12, 2003

Anyone care to make a guess at this?
Anyone know the answer?
Anyone know if there is a thread that already discussed this?

/ubbthreads/images/graemlins/wink2.gif

kakster · Jul 12, 2003

if i had to guess, id say that there was even less phosphor in a bin 5 than a bin 4.

Orion · Jul 12, 2003

Thanks for the guess. However, I would think that even less phosphor would be even bluer as opposed to purple.

Ralph_Hilton · Jul 26, 2003

I'd guess that there are 2 factors:
1. The amount of phosphor.
2. The yellowness of the phosphor. i.e. too red or too green.

If both are correct then you have bin 3.
Combinations of errors in the 2 factors would give the other bins.
The 5 bins don't cover all possibilities. The new binning, with 8 bins, appears to cover the color map more sufficiently.

Question about differring Luxeon white color hues

Orion

Flashlight Enthusiast

Orion

Flashlight Enthusiast

kakster

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Orion

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Ralph_Hilton

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