Can Cellphone cameras detect UV?
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X_Dror




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Location: Jerusalem, Israel
PostPosted: Sun, 5th Jun 2011 18:29    Post subject: Can Cellphone cameras detect UV?
Just wondering. Couldn't find much about this subject, except for these two articles -
http://www.specinst.com/What_Is_A_CCD.html this one says that CMOS can detect only down to 400 nm (not low enough for UV)
and this one says that it's supposed to get better - http://www.rdmag.com/News/2011/02/Materials-UV-transparent-coating-opens-new-world-for-cell-phone-sensors/

Anyhow I couldn't find any information about specific phones like Iphone 4, Galaxy, etc...

If anyone could enlighten me I'd be happy.

Thanks!
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dingo_d
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PostPosted: Sun, 5th Jun 2011 18:39    Post subject:
Well I doubt that they'll use that for cell phone cameras. From what I've seen in these articles, those would mainly be used in spectroscopy in labs around the world.

I don't see what's confusing to you? How CCD and CMOS chips work? Where could that be applicable? Something other?


"Quantum mechanics is actually, contrary to it's reputation, unbeliveably simple, once you take the physics out."
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chiv wrote:
thats true you know. newton didnt discover gravity. the apple told him about it, and then he killed it. the core was never found.

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X_Dror




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Location: Jerusalem, Israel
PostPosted: Sun, 5th Jun 2011 20:41    Post subject:
I want to know if a cellphone camera is sensitive enough to detect UV light.
I need to know that for some possible experiments with it.
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PumpAction
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PostPosted: Sun, 5th Jun 2011 20:51    Post subject:
Infrared light yes, ultra violett... well don't you have an UV lamp at home? Shouldn't be that hard to check. Mobile phones have VERY cheap camera inside of them, so that they basically catch everything as there is no money for proper filters (like IR filters).


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dingo_d
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PostPosted: Sun, 5th Jun 2011 21:05    Post subject:
Sensitivity in cheap ccd chips in cell phones.... I don't think so...

The thing is, I doubt that mobile phone companies will put some expensive chip in their mobile phone, since that wouldn't be profitable...


"Quantum mechanics is actually, contrary to it's reputation, unbeliveably simple, once you take the physics out."
Scott Aaronson
chiv wrote:
thats true you know. newton didnt discover gravity. the apple told him about it, and then he killed it. the core was never found.

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garus
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PostPosted: Sun, 5th Jun 2011 21:08    Post subject:
snip


Last edited by garus on Tue, 27th Aug 2024 21:56; edited 1 time in total
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PumpAction
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PostPosted: Sun, 5th Jun 2011 21:13    Post subject:
By filtering the regular light?

Catching IR only is pretty easy. Take some exposed film, hold it infront of your cam et voila. Only IR will go trough.


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garus
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PostPosted: Sun, 5th Jun 2011 21:17    Post subject:
snip


Last edited by garus on Tue, 27th Aug 2024 21:56; edited 1 time in total
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PumpAction
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PostPosted: Sun, 5th Jun 2011 21:17    Post subject:
Want to see my wand?


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garus
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PostPosted: Sun, 5th Jun 2011 21:21    Post subject:
snip


Last edited by garus on Tue, 27th Aug 2024 21:56; edited 1 time in total
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LeoNatan
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PostPosted: Sun, 5th Jun 2011 21:33    Post subject:
I use my iPhone as my personal Hubble telescope. It's that awesome. Cool
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deelix
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Location: Norway
PostPosted: Sun, 5th Jun 2011 21:35    Post subject:
iNatan wrote:
my apple prooduct is awesome. Cool
Cool Face
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X_Dror




Posts: 4957
Location: Jerusalem, Israel
PostPosted: Sun, 5th Jun 2011 21:40    Post subject:
garus wrote:
They might catch it, but how are you planning to differentiate it from a "regular" light?


That would be the next step.

First I must know if it's even possible to detect it, if not, then there's no use to what I'm trying to do.

Too bad there's no such information on Phones specs.
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garus
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PostPosted: Sun, 5th Jun 2011 21:56    Post subject:
snip


Last edited by garus on Tue, 27th Aug 2024 21:56; edited 1 time in total
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WaldoJ
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PostPosted: Mon, 6th Jun 2011 06:54    Post subject:
garus wrote:
iNatan wrote:
I use my iPhone as my personal Hubble telescope. It's that awesome. Cool


There's an app for that? Surprised Waiting for free Android version Cool


all my derpPhone apps are free Smug
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