FrinGOe
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Turning the Raspberry Pi into a spectrometer

Wed May 27, 2015 1:52 pm

We recently invented new optics that can turn the Raspberry Pi's camera into a spectrometer. The concept was proven on the iPhone as well as the Raspberry Pi NoIR camera. In fact because the NoIR camera had its IR-cut filter removed, we were able to obtain a spectral range up to the NIR portion.

Just wondering if anyone here may be interested and could appreciate this technology? What would you do with it?

Here's a demonstration video of FrinGOe on iPhone: https://youtu.be/e1RSMpPdohI

More information can also be found at our website, http://www.fringoe.com
FrinGOe: Spectrometer on the GO!
Turning the Raspberry Pi into a spectrometer at www.fringoe.com

FrinGOe
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Contact: Website

Re: Turning the Raspberry Pi into a spectrometer

Fri May 29, 2015 1:31 am

We have a new video available: measuring different LEDs: https://youtu.be/D7LtvKpWcPQ
FrinGOe: Spectrometer on the GO!
Turning the Raspberry Pi into a spectrometer at www.fringoe.com

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Burngate
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Re: Turning the Raspberry Pi into a spectrometer

Fri May 29, 2015 10:17 am

I find this remarkably interesting, so interesting I want to buy one - I don't have a use, I just want to play with it :geek:

One of the things I'd like to try it on is the Electric Pickle (http://hyperphysics.phy-astr.gsu.edu/hb ... le.html#c1)
I tried and failed (my maths is good enough, but my arithmetic isn't) to work out whether it could separate the sodium D-lines, 588.995/589.592, but I assume it couldn't. Never mind.

FrinGOe
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Re: Turning the Raspberry Pi into a spectrometer

Sat May 30, 2015 1:35 pm

That's precisely why we are making a Raspberry Pi version: it is fun, it is cheap, it is scientific and it is a great educational tool! :D

As for the sodium D-lines doublet, it would require a spectrometer with spectral resolution of at least (589.592-588.995)/2 = 0.2985nm which unfortunately FrinGOe is unable to resolve.

How much would you consider paying to get your hands on one for the interest and fun factor?
FrinGOe: Spectrometer on the GO!
Turning the Raspberry Pi into a spectrometer at www.fringoe.com

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Burngate
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Re: Turning the Raspberry Pi into a spectrometer

Sun May 31, 2015 10:34 am

Given that the Pi A+ costs about £17, 2 B £37, camera £20, my Scottish ancestry would baulk at paying more than about £20. My Welsh ancestry might go a bit higher, and the Devonians would probably max out in the £30-£35 range (but they were rich enough to own a fleet of cargo boats)
How much do you think you'll be wanting to sell it for?
... resolution of at least (589.592-588.995)/2 = 0.2985nm
So a factor of about 40.
I vaguely remember at an OU summer-school making a standard spectrometer, then comparing it to a professional one. The difference was phenomenal.
This one should still be good enough to see line spectra in a mercury source, or salts in a bunsen flame, I would think?
The other thought I had was whether it would see Fraunhoffer lines in the sun's spectrum.

FrinGOe
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Re: Turning the Raspberry Pi into a spectrometer

Sun May 31, 2015 3:38 pm

Mercury source and flame tests using the Bunsen burner shouldn't be a problem, although Fraunhofer absorption lines in the solar spectrum may have line widths too narrow to be captured.
Last edited by FrinGOe on Tue Jul 31, 2018 6:31 am, edited 1 time in total.
FrinGOe: Spectrometer on the GO!
Turning the Raspberry Pi into a spectrometer at www.fringoe.com

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Burngate
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Re: Turning the Raspberry Pi into a spectrometer

Sun May 31, 2015 4:36 pm

$49 ~ £32 so we're onto a winner :D

tryer
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Joined: Sun Jul 22, 2018 6:31 pm

Re: Turning the Raspberry Pi into a spectrometer

Sun Jul 22, 2018 6:34 pm

Looking nice!
Did you find a great application for it outside enterprises? I would love to buy one and play with it. Can you do something in the mid-IR range? That would be pretty helpful for food testing, etc.
But this is some awesome work!

Matisse
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Joined: Sat Dec 22, 2018 10:12 pm

Re: Turning the Raspberry Pi into a spectrometer

Sat Dec 22, 2018 10:16 pm

Is there a posibility to get the code

rflloyd
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Joined: Wed Feb 13, 2019 11:09 pm

Re: Turning the Raspberry Pi into a spectrometer

Wed Feb 13, 2019 11:11 pm

Will the raspberry pi version work on a RP 3?

FrinGOe
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Contact: Website

Re: Turning the Raspberry Pi into a spectrometer

Mon Feb 25, 2019 9:18 am

Hi everyone, thank you for the support. Due to poor performance of the RPi camera, we have discontinued this product.

A custom evaluation version is available to corporate customers who would like to test frinGOe.

For any enquiries, please contact us at "contact-AT-fringoe.com".
FrinGOe: Spectrometer on the GO!
Turning the Raspberry Pi into a spectrometer at www.fringoe.com

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