For the past seven years, I've had a broken digital camera lying around. It is still able to take pictures, but it is almost impossible to use on account of a broken screen. The fundamental problem is that sometimes the menu will accidentally get turned on, and not being able to see the screen, I can't turn off the menu and take pictures (without removing the batteries to reset the camera). I've been trying to figure out what to do with this camera as long as I can remember.
For a while I was considering converting it to a near IR camera, but I was reluctant to make another one after having already made one for
62 Projects to Make with a Dead Computer
(p. 200). However, I changed my mind about this when I learned that it was possible to use the material inside floppy disks as a visible light filter (for viewing near IR light). This sounded really cool and so I decided to give this a try. Not only does this totally work, it also adds another level of computer reuse to the version demonstrated in the book (as it provides a way to reuse floppy disks in addition to cameras).
It has been fun going around shooting pictures and discovering all of the interesting results when I upload the photos at home.
i think that the best is not to get scared of the technology :)
Greetings
Thanks
So on an older fixed focus point and shoot digital the photos will be blurry at first. You need to find someway to adjust the focus on them because it will need to be changed ever so slightly.
It's easy to do this on many cheap point and shoots.
I wasn't sure about this until today, when I bought a Kodak Easyshare cx6200 for 50C. I saw it on the shelf and knew what I had to do with it.
Mind you I've already found it's limitations (it's very bad at infinity/anything past a certain distance) and the 2mp is just a bit lower then I'm used to dealing with.
Either way I've taken a few photos. I didn't like the brownish tint so I tried to edit them, not knowing how they should really look.
http://img62.imageshack.us/img62/4236/1008617s.jpg
http://img844.imageshack.us/img844/5452/68780899.jpg
I'll just assume it's so blurry because of the camera itself.
The images normally have a reddish color to them, but in the camera settings I set the camera to capture in mono chrome. To give the effect of using a SLR camera with black and white IR film.
I sandwiched the disk material between 2 squares of plastic that I cut from a jewelcase, and then made it so the only light that could get into the camera was through the disk material. I then glued my IR pass filter directly to the outside lens of the camera. Looks alittle crude, but it seems to work on the things I tested so far. It was pretty late and cloudy on top of that.
However, on lamps with incandescent light bulbs, with the camera, it appears very bright, however, putting the same disk material over a non hacked camera that still has its IR filter, you cant see anything.
Fluorescent lights though, its very dark, can barely make out the tubes on the view finder. Shows how much energy light bulbs waste, giving off most of their energy in IR. The light from Laser mice is very visible.
I then passed 5,000 volts through 2 flash tubes, which is visible with my regular camera, but is much, much brighter on my IR hacked camera.
I also tested a stove, turned the burner on high, on IR, it appears bright white, and glows before I can see the red glow or before my non hacked camera can see it.
I then did a shot with the flash on aiming at a mirror, as well as a picture of me with flash in the dark.
Hopefully the weather is clear so I can test the camera out in the sun tomorrow.
and to hivoltage: well, now i know someone here lives in my area... i recognised that sundial-looking building instantly. i had a friend who was a chem professor at cal poly. as a sidenote, keep ahold of that picture. i read somewhere that they're tearing that complex down. (the "sundial" and the building next to it)
Great hack. Now i just wish i had saved some floppy disks. Oh well, off i go to see if Fry's still stock these things.
Might need to try this on the weekend :-)
Thanks
"Another interesting fact about infrared light is that it can travel through thick smoke, dust or fog, and even some materials."
Thats about it, so it's not possible to use it like an X-ray camera :) That would involve radiation ofcourse :)
Some airports are using IR boosted imaging scanners to show a thermal differentiation between the body and the clothing worn To filter out more of the visible light, you can stack the filters so that your visual representation of the I.R. spectrum is more pure.
There's no better way to describe it? The better way to describe it is to be specific as to non-ionizing radiation...
You are saying the word radiation cannot be used with non-iionizing types of radiation because the layman term radiation now only means ionizing radiation.
Where as the scientific meaning has been unaltered.
I better go and turn my non-ionizing radiators down as it's hot in here....
They are used quite widely throughout the packaging industry as well due to the high transparency, at THz freqs, of most packaging materials and the very low energy of the beams.