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Old 01-25-2010, 08:04 PM #1
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Default Webcam IR filter - what does it look like? Pics?

The title pretty much says it all, I have a "<50mW" green laser from Focal Price (goes without saying it's unfiltered) and i want to block the IR.

I have a bunch of webcams which I don't use and I want to tear the filter from one. But I need help. I'll take it apart (I love taking stuff apart) and keep all the bits, but can someone direct me as to what an IR filter looks like? Because as it happens I've never seen one before....

Thanks in advance


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Old 01-25-2010, 08:08 PM #2
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Default Re: Webcam IR filter - what does it look like? Pics?

If it has one, it will be right on top of the CCD chip. There will a small plastic, or rubber square holding it on the chip. It will be a square coated piece of glass.
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Old 01-25-2010, 08:18 PM #3
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Default Re: Webcam IR filter - what does it look like? Pics?

Ok, that's better than nothing. I... think I know what a CCD chip looks like. It's black & shiny, right?
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Old 01-25-2010, 08:23 PM #4
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Default Re: Webcam IR filter - what does it look like? Pics?

The black part is holding the filter over the CCD. You should be able to peel it off.

The chip look like this.



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Old 01-25-2010, 08:40 PM #5
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Default Re: Webcam IR filter - what does it look like? Pics?

Ok. Thanks.

What are the chances of a webcam not having one in it?
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Old 01-25-2010, 08:42 PM #6
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Default Re: Webcam IR filter - what does it look like? Pics?

Nvm. Think i got it. There's a little transparent square attached to the lens, that seems to reflect light with a slight red tinge. Sound right?
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Old 01-25-2010, 09:06 PM #7
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Default Re: Webcam IR filter - what does it look like? Pics?

^yup, i have two IR filters from webcams on my windowsill, at one angle they look red, while at other angles they can seem blue
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Old 01-25-2010, 09:14 PM #8
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Default Re: Webcam IR filter - what does it look like? Pics?

Thanks again, LPF!

Now... they're stuck pretty hard into this lens... lol no idea how i'm going to get it out.
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Old 01-25-2010, 09:19 PM #9
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Default Re: Webcam IR filter - what does it look like? Pics?

Alright, got it. It's pretty! One side reflects red and the other reflects blue. When put down it's like... invisible.

Now, it's pretty tiny. How should i put it in? Will Cellotape do or does that have too high an absorbancy?
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Old 01-25-2010, 11:52 PM #10
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Default Re: Webcam IR filter - what does it look like? Pics?

Silicone glue.
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Old 01-26-2010, 10:31 PM #11
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Default Re: Webcam IR filter - what does it look like? Pics?

It's on temporarily with tape. Where do i get silicone glue from? Hardware stores?

Thanks in advance.
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Old 01-26-2010, 10:41 PM #12
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Default Re: Webcam IR filter - what does it look like? Pics?

That little IR window is so light you should be able to stick it in place with just about any type of adheasive.
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Old 01-27-2010, 05:36 PM #13
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Default Re: Webcam IR filter - what does it look like? Pics?

Dont use supper glue. You can use some caulk, most people have it. Any rubbery type of glue.
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