Question: Physics of the LS

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What is the relaxation time of the LS Led?
Im not sure if this is the right technical term.

How long does it take to stop glowing after I turn off power?

Can you give me an equation for how bright it is over time after the power is taken off?

How about a graph?

Thanks in advance,
Mike Munroe
www.arcflashlight.com
 
Originally posted by munroe:
What is the relaxation time of the LS Led?
Im not sure if this is the right technical term.

How long does it take to stop glowing after I turn off power?

Can you give me an equation for how bright it is over time after the power is taken off?

How about a graph?

Thanks in advance,
Mike Munroe
www.arcflashlight.com
Click to expand...
<font size="2" face="Verdana, Arial">All colors but white are probably under 1 usec. White, I don't know about but it should not be difficult to measure. A couple of hours in the lab should do it.
 
Doug,

Do you have a way to give me the graph or the equation?
smile.gif


I dont have a lab that can tell me.
Do you have one? If so do you mind confirming the number more precisely?

1 us = 1 microsecond?

Thanks,
Mike Munroe

References browsed:
Yale GaAs
Vishay Optoelectronic Physics
Cladiss
 
Originally posted by munroe:
Doug,

Do you have a way to give me the graph or the equation?
smile.gif


I dont have a lab that can tell me.
Do you have one? If so do you mind confirming the number more precisely?

1 us = 1 microsecond?

Thanks,
Mike Munroe

References browsed:
Yale GaAs
Vishay Optoelectronic Physics
Cladiss
Click to expand...
<font size="2" face="Verdana, Arial">>Do you have a way to give me the graph or the equation?

Not without actually designing and conducting the test.

>1 us = 1 microsecond?
Correct.

I do contract test engineering for a living and have lab. If you have a commercial need, i.e., have money to spend, email me and we can discuss further. I suggest that you first contact Lumileds, they may have the data you need.
 
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