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Nightwing
03-14-2006, 06:18 PM
Can anyone explain why we have some non-primary LED colors like green, cyan, red-orange, etc, but no purple or pink? Do the LED gods think that those colors are too wimpy/girly to be LEDs or something?

xwingband
03-14-2006, 07:40 PM
I'm not sure but I believe it's why the same colors pop out out of a rainbow. There are just certain fundamental frequencies that pop out. Theoretically you could make an LED that would do all sorts of colors but when they must do it in an itsy-bitsy size certain colors pop out well.

Like all the blue shades we have. The native state of LEDs is a blue so it doesn't take much to pop a blue shade out. I believe the reason purple is difficult is because it wants to pop out in the UV spectrum. I know you can get 5mm purple's but they're powerfully weak.

I guess that's how it makes sense me. I'm not sure if I'm hitting the mark either.[?]

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Do-Clo
03-14-2006, 08:05 PM
Another determining factor in the color of leds is the market demand. The colors we currently have are commonly used in many other aplications. It is hard to accept but we are not the only ones using leds and we only make up a small precentage of the market. So demand leads the direction of design and production.

Do-Clo
Don't make me destroy you...

virus692
03-14-2006, 11:51 PM
here is a keen video I found on luxeon leds and how what colurs are made:
http://www.luxeon.com/technology/ll_video.cfm

VIrus 692-
Life Liberty and the prusuit of insainaity

Devilstar2k2
03-15-2006, 08:32 AM
Sweet vid... Felt like high school though...

Do-Clo
03-15-2006, 08:38 AM
Good information but it reminds me of an army training film. I know that they make product films for technical people but they must think we are really boring people.

Do-Clo
Don't make me destroy you...

james3
03-15-2006, 09:26 AM
Is that guy the voice of every training and sales film in the world?

It was really cool though. [:D]

"Only a Sith deals in absolutes. I will do what I must." - Obi-Wan Kenobi

xwingband
03-15-2006, 09:56 AM
What I get out of it is, "So are you telling me before they cut it there's a super-sized LED?[:0] Why do I not have one...now?"[:D]

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Do-Clo
03-15-2006, 10:38 AM
All semicondutors such as diodes transistors ic chips and such are made on a large silcon wafer which has segments containing the individual parts. Then once the wafer passes inspection it is cut into the indivdual parts and then installed into the housings that we recognize. I once worked for a company in their microwave division (communications not cooking) and we used the parts straight from the silcon wafers after they had been cut. The tiny chips of silcon where connected into the circuit using gold wire about the size of a human hair. I used to spend most of the day looking through a microscope to work in the devices.

Do-Clo
Don't make me destroy you...

xwingband
03-15-2006, 10:49 AM
Bubble burster.[:p]

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virus692
03-18-2006, 07:56 PM
I am with Xwing I want a Huge LED...

VIrus 692- [img=left] http://e.deviantart.com/emoticons/j/jedi.gif[/img=left]
Life Liberty and the prusuit of insainaity!

Do-Clo
03-18-2006, 08:41 PM
Sorry guys the best way to get a big led is to combine several small leds together and then you would have the output of a big led. I once used a pair of aircraft landing lights for driving lights on my truck, those were the brightess lights I have ever seen, and they were the size of a headlamp. They were great for off road use.[:D]

Do-Clo
Don't make me destroy you...

xwingband
03-18-2006, 08:52 PM
And I was planning that spotlight sized saber... party pooper.[:p]

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Do-Clo
03-18-2006, 09:10 PM
Here is a solution for your saber problem, take an old style round headlamp, two 6 volt lantern batteries or a motorcycle battery and a piece of 4" clear pvc pipe for a blade, and some of the stage lighting colored gels for your diffuser and there you go a big bright saber.[:D]

Do-Clo
Don't make me destroy you...

Firebird21
03-18-2006, 09:12 PM
What about the defuser?

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Do-Clo
03-18-2006, 09:13 PM
That is what the rolled up colored light gels are for, just put them inside the blade.

Do-Clo
Don't make me destroy you...

xwingband
03-18-2006, 09:15 PM
I want bigger! LOL[:D]

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Firebird21
03-18-2006, 09:15 PM
Like the Corbin's film?

Hmm... I got some of that stuff...

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Firebird21
03-18-2006, 09:16 PM
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by xwingband

I want bigger! LOL[:D]<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Damn, you're greedy! lol

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Do-Clo
03-18-2006, 09:21 PM
I want bigger! LOL

Pappy had a saying, you can want in one hand and poop in the other and see which one fills up first. LOL

Do-Clo
Don't make me destroy you...

xwingband
03-18-2006, 09:32 PM
Yes, but I can sell the poop in the other hand as fertilizer to pay for the wants.[:p]

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Firebird21
03-18-2006, 09:36 PM
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by xwingband

Yes, but I can sell the poop in the other hand as fertilizer to pay for the wants.[:p]<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">


It's called "Milorganite"
www.milorganite.com

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Pirate King
03-18-2006, 11:03 PM
wouldn't it be easier to just cut a sheet of stage gel into a disc shape and use it as a filter at the lense like tim's color discs? That's what I did for purple with my build-your-own saber before I tore it apart.

{<font color="black">[[[</font id="black">(((<font color="red">o</font id="red">))<font color="gold">EE</font id="gold">[/<font color="blue">==============</font id="blue">

GFORCE13
03-19-2006, 04:04 AM
Well you want L.Saber how one with a 6' overall length with a 5"Diameter Hilt and a 4"Diameter Blade that uses a 120V Floodlight Bulb to change the Blade Color screw in a different Bulb.[:D]
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May the Force
Be with You

Marc E.

xwingband
03-19-2006, 12:30 PM
Bigger.[:)]

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Do-Clo
03-19-2006, 02:23 PM
I'll make you a deal Xwing if you front the money for parts and do the design work I will big your giant saber for you.

Do-Clo
Don't make me destroy you...

xwingband
03-19-2006, 02:29 PM
See... money. That I have very little of. *shakes fist at old car*[xx(]

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Firebird21
03-19-2006, 03:47 PM
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Pirate King

wouldn't it be easier to just cut a sheet of stage gel into a disc shape and use it as a filter at the lense like tim's color discs? <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">


Because it doubles as a defuser...

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Melek Taus
05-07-2006, 08:44 PM
Hey....were those Afgany women making the LED's? LOL Oh....I heard this stuff already in my semiconductor class in college...geez.

Melek

There is no light or dark...there is only the Force....knowing this...who dares to challenge me?

Jedi-Loreen
05-07-2006, 11:36 PM
<font color="blue"><font size="3">Those were probably women in India. I doubt that women in Afghanistan are allowed to work, are they? I know they didn't used to be allowed to be educated. And don't they have to have their faces covered?</font id="size3"></font id="blue"> [?]

In order to see the Light, you must sometimes risk the Dark.

Do-Clo
05-08-2006, 06:47 AM
I think that the women have some freedom these days but I am not sure how much, it is really sad.

Do-Clo
Don't make me destroy you...
Sith Lord
Brotherhood of the Sith