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'[EE]:Bright bi-colour LEDs'
2002\08\15@232225 by Jinx

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Does anyone know of a 3mm or 5mm bright/superbright
bicolour LED ? I've looked through various catalogues
and wonder if they in fact exist. All of the ones I've found
so far are in the low mCd range

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2002\08\16@005737 by hard Prosser

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For 3 wire leaded 5mm types:-
The best ones I was able to locate were Adilam (?)  LU5351-JM from Memec
(phone # in Auckland 9 636 5984)

Not superbright & when both colours are on,  the actual viewed colour
depends on the angle somewhat but they were the best around at the time
(~18 months ago).

Richard P




Does anyone know of a 3mm or 5mm bright/superbright
bicolour LED ? I've looked through various catalogues
and wonder if they in fact exist. All of the ones I've found
so far are in the low mCd range

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2002\08\16@040506 by Alan B. Pearce

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>when both colours are on,  the actual viewed colour depends
>on the angle somewhat but they were the best around at the time

I have found this to be the case with all bi-colour LED's I have dealt with,
even when the lens is frosted it still occurs to some degree.

I was going to suggest Kingbright, some product lines from them are
available through RS, but looking round their website doesn't categorise
things the way one would hope. http://www.kingbright-led.com/Default.asp

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2002\08\16@043446 by Jinx

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> I was going to suggest Kingbright, some product lines from them
> are available through RS, but looking round their website doesn't
> categorise things the way one would hope.
> http://www.kingbright-led.com/Default.asp

Nothing I could see in RS, Farnell, DSE or Jaycar

I did have a look at Kingbright's range, and this one looks closest

http://www.kingbright-led.com/Products/Through-holeLED/l799.htm

although it's still not that bright. The red far outshines the green too
so you'd have to really cut the red back which gets you back to a
not very great overall gain over standard ones, but it seems that's
the best around

However, the local distributor for Kingbright doesn't stock it, so that
means indent and MOQ. Which ain't gonna happen for a run of 20
units. Sigh. The perils of getting your hopes up looking at on-line
product ranges

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2002\08\16@053816 by Katinka Mills

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{Quote hidden}

Jinx hon, how many are you after, I have some on the shelf (not sure which
part number, would have to look up the '98 invoices to see what they are
lol) all I know is they came from Alpha Tek in Sydney and are Kingbrite Bi
colored ultra bright leds. 5mm body

Regards,

Kat.

**********************************************
K.A.Q. Electronics.
Electronic and Software Engineering.
Perth, Western Australia.
Ph +61 (0) 419 923 731
**********************************************

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2002\08\16@064536 by Jinx

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> Jinx hon, how many are you after, I have some on the
> shelf (not sure which part number, would have to look up the
> '98 invoices to see what they are lol) all I know is they came
> from Alpha Tek in Sydney and are Kingbrite Bi colored ultra
> bright leds. 5mm body

I'm expecting a short production run of a specialised machine
interface. Probably a dozen or so, and each needs two LEDs
The client has seen the DSE one and not too impressed. My
reckoning of UB is > 1000mCd. Those I've seen so far are 500mCd
or less, which I'd call just bright

It would be very helpful if you could find the part number of the ones
you have (LEDs must be about the only semi with no number on
them), although it's not overly important if you can't

If I really really have to I can put a piece of clear 5mm perspex rod in
the bezel and illuminate it from below. If the bottom is cut with angles
shallow enough for two LEDs to go side by side that should do it. Big
gob of silicone to hold the LEDs in place. Sorted, and apart from a bit
of simple labour, probably cheaper to get standard UB singles anyway

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2002\08\16@090434 by Nelson Hochberg

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Try;
www.eled.com/SearchResult.asp?WaveLengthLogic=%3D&WaveLength=&Viewing
AngleLogic=%3D&ViewingAngle=&LuminousIntensityLogic=%3D&LuminousIntensity=&c
hk3mm=ON&chk5mm=ON&Search=Search&CategoryName=Multi-Color+LED

{Original Message removed}

2002\08\16@103403 by llile

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Kingbright definitely sells special high brightness dual color LEDs, and
they definitely keep them a secret.  Call your rep and get some samples.
We are designing them into a product now, and when we design in a special
it becomes a standard.  regular LED's look sick in comparison.

--Lawrence








Katinka Mills <katinkaspamKILLspamMAGESTOWER.COM>
Sent by: pic microcontroller discussion list <.....PICLISTKILLspamspam.....MITVMA.MIT.EDU>
08/16/02 04:32 AM
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       Subject:        Re: [EE]:Bright bi-colour LEDs


> {Original Message removed}

2002\08\16@150350 by Eric Chan

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Jinx,

I have a whole bunch of bi-color, 3mm LEDs, with part number
LT0362-24-D63 from LEDTech Electronics Corp.  They are just bright but
cheap, I think.  I just don't have their spec handy but I am sure you can
dig it up from LEDTech web site.  You can have some free if you wish, let
me know offline.

Also, if you are desperate with the KingBright, send me the part no. and
I can try asking samples through local sales in Taiwan for you but will
surely take some time.

Good luck.
Eric


Jinx wrote:

> Does anyone know of a 3mm or 5mm bright/superbright
> bicolour LED ? I've looked through various catalogues
> and wonder if they in fact exist. All of the ones I've found
> so far are in the low mCd range
>
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2002\08\16@181035 by Jinx

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Thanks for all replies re UB bi-colour LEDs. I think I will have
to get in a few salesperson's faces on Monday morning and
not get fobbed off like I was last time

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2002\08\17@005648 by Katinka Mills

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Jinx hon if you give me your snail mail address off list, I would be more
than happy to send you 24 free of charge, as a way of saying thanks for all
the help you have given us here.

Regards,

Kat.

**********************************************
K.A.Q. Electronics.
Electronic and Software Engineering.
Perth, Western Australia.
Ph +61 (0) 419 923 731
**********************************************

> {Original Message removed}

2002\08\17@093236 by Jinx

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> Jinx hon if you give me your snail mail address off list, I would
> be more than happy to send you 24 free of charge, as a way
> of saying thanks for all the help you have given us here
>
> Regards,
>
> Kat.

Well that's above and beyond the call of duty Kat and certainly
appreciated. I'm touched. Not as often as I'd like but that's another
story

I'll be talking to the client on Monday and see what he wants to do

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