Electronics RGB/White Leds

Discussion in 'Modding' started by computer, 15 Apr 2004.

  1. TheAnimus

    TheAnimus Banned

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    RGB n BLUE ones all clear
     
  2. computer

    computer What's a Dremel?

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    huh?
    right I'm going to order buy it now, $10, 10 RGB 5mm water clear leds.

    sound okay? and its only going to cost me $10, even though it says additional charges may be added by the supplier (on the buy it now page) and I get free shipping to the UK and can pay via paypal okay?

    thanks
     
  3. TheAnimus

    TheAnimus Banned

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    i didn't get any extra charges. One other thing, each LED has slightly differn't MCD so differnt resistors are needed for each colour to get a perfect white. (but all RGB leds i've found have this).
     
  4. SteveyG

    SteveyG Electromodder

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    lol, I noticed that too when I looked at that page.



    TheAnimus, can I buy 5 RGB ones off you if you have some spare so I can see what they're like?
     
  5. specialk

    specialk What's a Dremel?

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    I'm just going to voice my opinion about the RGB LEDs one more time, because I think it's important. The RGB LEDs that Chi Wing sells are low-quality, cheap water-clear LEDs. If you don't think that the water clear matters (because you plan on "mixing" the colors using pwm) then you will be surprised at how severe the viewing angle cutoff is for each color. It certainly disuaded me from using them in any projects where they would be directly seen (but you can see them from the side here where I use them for programming). I was very disappointed in them. Some may argue that you can just sand the top to "diffuse" them, however, it will not perform nearly the same as a diffused lens LED (because diffused LEDs are cloudy throughout the epoxy lens). I say buyer beware and avoid them. Go for some genuine high-quality diffused RGB.

    -special [k]
     
  6. SteveyG

    SteveyG Electromodder

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    The trouble is that we just can't get them here in the UK. All the ones in Farnell, CPC, Rapid etc use GaP 525nm Green which is useless for full spectrum reproduction. I've not been able to find another source of RGB LEDs with InGaN Pure Green die.
     
  7. TheAnimus

    TheAnimus Banned

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    the angle is as servire as u would expect, sand the top and you get a perfect white (with less resistance for red, and more for blue than for the green).

    The clear projects nicely, but the segments are split over long range. I've yet to find a clear LED that dosn't do this.
    True about the epoxy been deffused all the way provides a better diffusion, but for the price differnce, i wouldn't worry about it.
    If anyone knows someone selling non clear RGB ones, then please enlighten us!
     
  8. computer

    computer What's a Dremel?

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    well I ordered some RGB ones, I might have a go for the white and some others if this goes through okay.

    so 10x2000Mcd, how bright is that (assuming they're all on white in the same direction)... in relative anyway (ie, equivelant to a 10w halogen bulb) or something
     

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