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moomoo
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Join Date: Jun 2008
Posts: 121
Good Answers: 1

Reliablity Statistics

12/23/2012 8:49 PM

Hi All,

Would like to see ur advise on this issue. I have burn in data accumulated so far up to 3 years for some LED form various manufacturers like Lumileds, Cree and samsung.

I am also interested to do some degradation calculation on the lux with the burn in samples so far after measuring their lux/lumens.

Is there any statistical program in the internet that could be used to calculate the the degradation or lumen maintenance data for to project up to 10 years lumen maintenance?

Your inputs are appreciated.

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fixitorelse
Guru

Join Date: Aug 2010
Posts: 687
Good Answers: 21
#1

Re: Reliablity Statistics.

12/23/2012 10:25 PM

I would just set up a spread sheet (in your favorite manufactures brand) to estimate the data you have. Might take a bit of programing but, not to bad to do.
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Usbport
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Engineering Fields - Optical Engineering - Member Engineering Fields - Engineering Physics - Member Engineering Fields - Systems Engineering - Member

Join Date: Apr 2010
Location: Trantor
Posts: 5363
Good Answers: 647
#2

Re: Reliablity Statistics.

12/24/2012 12:47 AM

I hope you used an integrating sphere.

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