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Fun with LEDs

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mugz   12-12-2006 at 04:50:18 PM

Replaced my mouse's generic red LED with a blue one. Due to a blue light wavelength being shorter than red light, the mouse should theoretically have a far higher resolution than normal. And yes, it does.

Now I come to a question. White LED fans - overseas availability of.

Down here (south africa, joy) we can get LED fans in red, blue, green, yellow/orange or multicolour. I am wondering whether the white LED fans in my case (2x120, 3x80) are nonexistent here or globally.

Admittedly, while a red/green/yellow LED is around R4, a blue one is around R7 or so, and the whites are R15+. All waterclear ultrabrights 6500~8500mcd.

For all I know, overseas white LED fans are even more unremarkable than the blue/red/psychedelic varieties. Anyone ever seen one before?

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lewbaseball07   12-13-2006 at 01:06:13 AM
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i think we need a conversion to us dollars buddy

Reply to lewbaseball07
drummerdude   12-13-2006 at 01:31:46 AM
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are you talking about something like these from newegg link

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mugz   12-13-2006 at 09:23:28 AM
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Good point: ZAR 7.00 = US$ 1.00 - as close as makes no odds.
White LED around $2, blue around $1, others around 40~60c I'd guess.

Thanks for the link, that was exactly what I was talking about.
Also exactly what I cannot get down here due to idiotic import/export regulations - and have I mentioned it's a third world country?

I hate this place...

Reply to mugz
Sticky   12-13-2006 at 10:56:53 AM
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If you hate SA that much just leave you Prick!

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mugz   12-13-2006 at 01:22:21 PM
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But then what will I have left to bitch about?

Reply to mugz
apt403   12-13-2006 at 01:41:36 PM
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you could bitch about high gas prices and UPS smashing the hell out of your parts like everybody else.

white LED's

i would just buy a couple hundred of those then line the inside of your case with them, the power will be a problem. (im sure you could mod the end of a moltex power cable or something.) and you would have to be pretty handy with a soldering iron, but it would look totally awesome! the diffused ones would probably look a little better.

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Sticky   12-13-2006 at 01:50:04 PM
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You old lady maybe.............

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mugz   12-13-2006 at 01:57:04 PM
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Handy with a soldering iron? Used to do industrial electronics before I started working in a PC shop. Enjoy the PC stuff more too.

High gas prices are fact of life everywhere, I'd guess. Couriers too... and politicians...

@sticky: luckily for me, I'm single, and planning to stay that way for some time yet. Last one, well, let's just say I considered becoming gay until I (finally) dumped her.

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Sticky   12-14-2006 at 06:12:40 AM
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That sounds cold dude... Seems you have deeper issues than just the quality of life in ZA.............

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mugz   12-14-2006 at 08:50:41 AM
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yeah, even my issues have issues, and /they/ have hangups.

Reply to mugz
Gah   12-14-2006 at 10:51:57 AM
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Bah, Try an infra red one.
Thanks to a dodgy soldering job, my infra red mouse needed to be hit to work, but it wasn't too bad.
I <3 my laser mouse though. Too bad I can't change the colour.

Reply to Gah
plankmeister   12-14-2006 at 11:17:28 AM
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Quote :

Replaced my mouse's generic red LED with a blue one. Due to a blue light wavelength being shorter than red light, the mouse should theoretically have a far higher resolution than normal. And yes, it does.



How does that work, then? Surely it's a combination of the emitter and the sensor? Unless the sensor is tuned to narrower wavelengths in the first place, I guess...

Reply to plankmeister
mugz   12-14-2006 at 12:02:33 PM
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Broad-spectrum CCD sensor, by the looks of it, appears to be standard fare on most optical mice. Works with white LED as well.

From what I can see, the sensor isn't so much concerned with wavelength as with intensity. Putting a diffuse 800MCD LED in won't work. Putting a 2500MCD LED in won't work very well. Putting in a 8500MCD will work incredibly well.

The standard is around 5000~6000MCD I think.

Prime reason why I haven't gone with a laser mouse yet. It must match my case colour scheme (black/silver w/blue highlighting).

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