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BEatonNo1
Nobel Prize Winner
USA
1133 Posts |
 Posted - Aug 02 2010 : 12:38:09 AM
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| I think the issue is with how the spectral output of the LED relates to the EYE. When I was playing with blending LED colors, the yellows were not as bright as the other colors When you looked at the spectral emission of the LEDs they had really narrow outputs at red blue and green and not much output in between. |
Edited by - BEatonNo1 on Aug 02 2010 12:41:58 AM |
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audioguru
Nobel Prize Winner
Canada
4218 Posts |
Posted - Aug 02 2010 : 09:47:09 AM
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when you mix red light and green light your eyes see yellow light.
With R, G and B in the correct ratios you can make perfect white that contains all colours.
Colour TVs use R, G and B to make millions of colours. |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Aug 02 2010 : 10:36:44 AM
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| I know there is only a tiny amount of mercury, but it does all add up and it makes sense to keep it out of the environment. Fluorescent tubes pose a similar problem. Incandescent lamps are much more "friendly" aside from the power usage since most of them aren't packed with toxic chemicals. Glass, tungsten, argon, a coating, some lead, and steel. Most of the incandescent bulbs at my place were well over 5 years old when they were replaced with CFLS. And in the mean time, at least 8 CFLs have needed to be replaced. 3 of those actually caught fire, 2 were about to. I use so much power that paying for a few extra electrons to run some incandescent lamps doesn't bother me. I've noticed no savings since switching to CFLs anyway. |
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RRITESH KAKKAR
Apprentece
India
23 Posts |
Posted - Aug 23 2010 : 09:25:38 AM
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| I have Mosfet & It's working But have a doubt How to know whether it's Depleted or Enchan. Mosfet I remember in class lecture It was told That depleted mosfet On GATE suply It Does not give o/p But in Experiment I azm not able to understand this.............! |
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boron
Mad Scientist
Canada
223 Posts |
Posted - Aug 23 2010 : 10:00:40 PM
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| What does that have to do with a subwoofer crossoever circuit, colour spectrums or anything else that was brought up in this thread? Stop hijacking them and start your own. Your post is also quite difficult to understand. |
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Aaron recommended a circuits site to me.
