"Discover Cooking, Discuss Life."

Go Back   Discuss Cooking - Cooking Forums > The Back Porch > Off Topic Discussions
Click Here to Login
Thread Tools Display Modes
Old 06-26-2008, 06:00 AM   #1
Executive Chef
YT2095's Avatar
Join Date: Aug 2006
Location: Central UK.
Posts: 3,875
Send a message via MSN to YT2095
Lightbulb Infrared Fun!

here`s a really cool experiment anyone can do that not only gives very interesting results (some of which I`ll present here) and it won`t break the bank either, normally I wouldn`t post such things here on a Cooking forum, but this is so simple and so much fun that I wanted to share it with you all.

I`ll only present some of the effects and results here as the potential hasn`t been fully explored yet by myself leaving Plenty of scope for others to join in.

you`ll need a cheap webcam, you can pick them up for pocket change nowadays.
the Best sort are the ones that you have to focus manually by turning the lens holder.
you`ll have to take this apart so that you can unscrew it entirely to see the CCD chip itself, although the CDD isn`t the bit you`r after, the bit you need to remove is 99.99% of the time in the Lens housing itself.
it`s the Infrared filter!
it`s often a small flat square piece of glass that has a Green color to it, I say Often as it can be circular too, but it always flat and has a green color.
depending on the design you`ll have to either remove tiny spots of glue at the edges to remove it, or cut some plastic away and let it drop out, eitherway a sharp box cutter blade is the ideal tool.

when you`v removed this IR filter, screw the lens housing back into place.
if you connect the Cam to the PC and switch it on during this, you can can also sharpen the focus as you`r doing it, you`ll know you`v got it right when your keyboard letters are all nice and sharp looking from about half a meter away.

you`ll not notice any strange effects at 1`st, until you shove the cam up the window to look at some trees or plants, here:

still not all That bizzare but don`t the trees have a strange Whiteish color and not at all Green anymore, this is just the beginning!

here`s what it looks like with different colored plastic filters in front of the lens, I`ll start with Blue:



Now you can see the Plants have taken on a Very odd White color compared to everything else ;)

my story didn`t end there though, I wondered What would happen if I used all 3 of these filters together Red/Green and Blue?
well I made up the layers and couldn`t see a thing through it with my eyes, but tested it anyway...

Yes! a Black and White filter for color cameras!
Now the Plants look really strange

and THIS is probably the Freakiest thing about this experiment:

all the Veins in my hand are perfectly visible now, and yet in "normal" vision you can`t see them.

I hope you all have fun with this and present Your results here as well as Ideas of things to try IR vision with.
and Yes you can read a book in total darkness using a TV remote as a flashlight ;)

Have Fun!

(Non of these pictures have been altered in Any way using any s/ware at all, they are ALL direct from the cam)


Katherine Snow. xx
YT2095 is offline   Reply With Quote
Old 06-26-2008, 06:55 AM   #2
Chef Extraordinaire
Katie H's Avatar
Site Moderator
Join Date: Sep 2006
Location: I live in the Heartland of the United States - Western Kentucky
Posts: 15,878
Really neat, John. Buck would've eaten this experiment up. Probably would've tried it. You're DC's "Mr. Wizard!"

"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!
Katie H is offline   Reply With Quote
Old 06-26-2008, 08:03 AM   #3
Head Chef
lulu's Avatar
Join Date: May 2006
Location: England
Posts: 2,039
I have an infa rad heat light for the cats in winter, as DH and I don't like the central heating on. sometimes though, when its cold I sit near it too and I never fail to be amazed by the pattern of veins under the skin.....its strangely beautiful.
In omnibus amor et iustum
lulu is offline   Reply With Quote
Old 06-26-2008, 09:44 AM   #4
Chef Extraordinaire
pdswife's Avatar
Join Date: Nov 2004
Location: Mazatlan
Posts: 20,334
Send a message via AIM to pdswife Send a message via MSN to pdswife Send a message via Yahoo to pdswife
oh, I love experiments. You'd think that my husband ( who has a chem. degree) would let me do some but we never get around to it.
I might be able to do this one myself. THANK YOU!!!!
Love the life you live!
pdswife is offline   Reply With Quote
Old 06-26-2008, 09:49 AM   #5
Head Chef
David Cottrell's Avatar
Join Date: Sep 2007
Location: Norwalk, Ohio
Posts: 1,193
Off topic, I'm sorry, but there is Katie! Great to see you are here.
David Cottrell is offline   Reply With Quote
Old 06-26-2008, 09:51 AM   #6
Senior Cook
pot clanger's Avatar
Join Date: Apr 2008
Location: In a van, down by the river.
Posts: 254
I thought this was going to be a demonstration on how to have more fun applying sunscreen... sheeesh!
pot clanger is offline   Reply With Quote
Old 06-26-2008, 09:56 AM   #7
Head Chef
David Cottrell's Avatar
Join Date: Sep 2007
Location: Norwalk, Ohio
Posts: 1,193
Back on topic, I revisited and opened the links to the photos - neat! Then I checked out your profile wondering where in the world is left of Europe and down a bit - that's vague enough to hide out! Nice garden and other photos you shared. Thanks
David Cottrell is offline   Reply With Quote
Old 06-26-2008, 04:07 PM   #8
Chef Extraordinaire
buckytom's Avatar
Join Date: Aug 2004
Location: My mountain
Posts: 21,540
yt, if you have a wide range of contrast on the camera, you can do some fun "x-ray vision" type stuff with it.

The past is gone it's all been said.
So here's to what the future brings,
I know tomorrow you'll find better things
buckytom is offline   Reply With Quote
Old 06-27-2008, 12:25 AM   #9
Traveling Welcome Wagon
Join Date: Apr 2004
Location: Somewhere, US
Posts: 15,716
Very interesting! Thanks! I think it is interesting how (to me anyway) it looks like the weather is stormy with the red filter, and kind of stormy with all three.


Barbara L is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Discuss Cooking on Facebook

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:45 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.