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Webcam IR filter - what does it look like? Pics?

JaiNobeZ

JaiNobeZ

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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
 





Tech_Junkie

Tech_Junkie

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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.
 
JaiNobeZ

JaiNobeZ

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Ok, that's better than nothing. I... think I know what a CCD chip looks like. It's black & shiny, right?
 
Tech_Junkie

Tech_Junkie

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

The chip look like this.

ccd%20chip.JPG


ccd-chip4.jpg
 
JaiNobeZ

JaiNobeZ

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Ok. Thanks.

What are the chances of a webcam not having one in it?
 
JaiNobeZ

JaiNobeZ

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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?
 
Gryphon

Gryphon

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^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
 
JaiNobeZ

JaiNobeZ

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Thanks again, LPF!

Now... they're stuck pretty hard into this lens... lol no idea how i'm going to get it out.
 
JaiNobeZ

JaiNobeZ

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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?
 
JaiNobeZ

JaiNobeZ

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

Thanks in advance.
 
Flaminpyro

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That little IR window is so light you should be able to stick it in place with just about any type of adheasive.
Pyro...
 
Tech_Junkie

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