a question about inretech 2AA adapters

can anyone tell me the Vf of the cyan adapter, what vf bin would they be ?
thanks

a while back a purchased a few inretech adapters, one the cyan adapters had a really nice cyan color to it, but it's not
that bright(i think it's under driven to avoid heat).
I've been searching for a cyan LS with the same color ever
since with no luck...
I decided to take the inretech apart an use that cyan LS in
another mod(with heat sink), I'd like to know how much V it needs to light safely

i think Cyan has the same Vf binning as white lux, as so do RB and blue. Red, and orange have lower Vf in general. So i think you should be ok if you treat the cyan as white.

thank you shiftd, i'd hate to loose this LS.

lol, yep, me too hate to see you lose that LS /ubbthreads/images/graemlins/grin.gif

/ubbthreads/images/graemlins/naughty.gif /ubbthreads/images/graemlins/thumbsup.gif /ubbthreads/images/graemlins/tongue.gif /ubbthreads/images/graemlins/tongue.gif /ubbthreads/images/graemlins/thumbsup.gif /ubbthreads/images/graemlins/grin.gif

Not sure of the vf of the Cyan , but mine doesn't get hot on Lithiums and gives off very bright light blue light with just a hint of green.

sounds like the color of mine,it gets pretty warm with 3.6V applied, that PCB board is not much of a heat sink...
yours is a Low Dome too, right ?

dude, that PCB board is nothing related to heatsinking. when you open one apart, you will see that the PCB is like sammich's emitter board, so it does nothing to heat dissipation. Mine is a LD too, and i guess every inretech adapter is a LD, unless otherwise noted.

yup, i know that...
i've already taken the LS off the adapter, AA back onto a star board(it was a good size)it's going in a dorcy 1AA as i write this(iron warming up...).
i dont want to over drive this puppy at all, so no MaDMax or BadBoy.

Yeah mine is a LD.
I'd really like to get some of those emitters with the same binning.Most of my "cyan" emitters are mostly green.
Would this bin be a 1 or a 5 for color?

i'm not sure how the binning works for the color LS's.
maybe Inretech (Mike) could step in and clear this up...
maybe it's a secret /ubbthreads/images/graemlins/wink.gif

The color is the wavelength of the light:

Red=620.50
Amber=584.50
Green=520.00
Cyan= 490.00
Blue=460.00
Royal-Blue=440.00

As you can see, the CYAN LED is only 30nm shorter wavelength than the GREEN

Each person has a slightly different perspective on color; often when I show the CYAN adapter to people - about 75% of them respond telling me its "GREEN", then when I bring out the "real" GREEN Led, they suddenly do a "double-take" and are surprised

Some people think the CYAN is "Green" and then tell me that the GREEN is another color; other people call it "Turq" or "Blue-Green", very few know it as "Cyan"

So, in summary - its all relative to the perspective of the observer

The human eye is very sensitive, but not linear

For example, here is a relative sensitive chart of nm/brightness for the "average" human eye:

nmEye/Sensitivity/Color
420.00/0.02/Violet
442.00/0.04/Violet-Blue
450.00/0.05/Blue
457.90/0.06/Blue
488.00/0.19/Green-Blue
500.00/0.32/Blue-Green
514.00/0.59/Green
532.00/0.89/Green
543.50/0.97/Green
550.00/1.00/Yellow-Green
555.00/1.00/Yellow-Green
568.00/0.96/Yellow-Green
580.00/0.87/Yellow
594.10/0.71/Orange-Yellow
600.00/0.63/Orange
611.90/0.48/Red-Orange
632.80/0.24/Orange-Red
635.00/0.22/Orange-Red
647.10/0.13/Red
650.00/0.11/Red
660.00/0.06/Red
670.00/0.03/Deeper RED
680.00/0.02/Deep RED

On of the most common questions I get asked is "why the colors?", and I usually answer:

1) Because we can
2) They are pretty
3) To give the customer a choice

One time, we had a customer come over to the booth and wanted to know which color would allow him to see numbers stamped into metal

I had no idea - since we were at a Gun show, the customer wondered over to another booth and borrowed a pistol and checked all the colors; he determined that AMBER was the best for his needs, I made a sale - and we booth were happy; so - its really up to the customer to decide the "perfect" use for a color.

[ QUOTE ]
red_robby said:
can anyone tell me the Vf of the cyan adapter, what vf bin would they be ?
thanks

[/ QUOTE ]
/ubbthreads/images/graemlins/icon23.gifwill you answer this question ?
thanks

I really don't think there are bin-codes for colors

From the datasheet at:

http://www.lumileds.com/pdfs/protected/DS25.PDF

You can see that each color is allowed a "width" of acceptance on wavelength

Color,Min,Typ,Max
Green,520nm,530nm,550nm
Cyan,490nm,505nm,520nm
Blue,460nm,470nm,490nm

So you can see that a CYAN that is 519nm and accepted in the CYAN range, is very close to the 520nm of accepted GREEN; so it could look very green and still be sold as a Cyan

Should we get a request from a customer for a hand-selected Cyan, we could work something out - I have limited access to a optical spectrometerm which is a very expensive piece of equipment, we borrowed one for a short time - and tried to take as many measurements as we possibly could

Luxeon:

http://www.inretech.com/pictures/4.jpg

Sun:

http://www.inretech.com/pictures/1.jpg

I thought there was something wrong with the unit when I saw that "spike" at approx 762nm; and it took a lot of researching to find out why it was there