Post by thread:infrared camera/nite vision

Mike M wrote: > > anyone have any links or ideas on how to build an infrared camera/nitevision a ttatchment to a regular video camera if possible??? > > Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. > GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41 I've got a sneaky suspicion they can detect IR with suitable IR illumination. Possibly just IR LED's. -- Best regards Tony http://www.picnpoke.com Email spam_OUTsalesTakeThisOuTpicnpoke.com

<x-flowed>I saw some tiny board type CCD cameras just use a few infrared LEDs as the light source, it claims the image can be seen clearly in dark if within a few feets from the camera. {Quote hidden}>From: Mike M <.....elektrikmanKILLspam@spam@DYNAMITEMAIL.COM> >Reply-To: pic microcontroller discussion list <PICLISTKILLspamMITVMA.MIT.EDU> >To: .....PICLISTKILLspam.....MITVMA.MIT.EDU >Subject: infrared camera/nite vision >Date: Thu, 4 Nov 1999 21:47:36 -0500 > >anyone have any links or ideas on how to build an infrared >camera/nitevision attatchment to a regular video camera if possible??? > >Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. >GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41 > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com </x-flowed>

On Fri, Nov 05, 1999 at 01:57:26PM +1100, Tony Nixon wrote: > > I've got a sneaky suspicion they can detect IR with suitable IR > illumination. Possibly just IR LED's. You also need to remove the IR filter. Many camcorders have a night vision setting, that moves the IR filter out and turns on a couple of IR leds facing forward. It's also illuminating (pun intended) to view an IR led with a digital camera. Regards, Clyde -- Clyde Smith-Stubbs | HI-TECH Software Email: EraseMEclydespam_OUTTakeThisOuThtsoft.com | Phone Fax WWW: http://www.htsoft.com/ | USA: (408) 490 2885 (408) 490 2885 PGP: finger clydespam_OUThtsoft.com | AUS: +61 7 3355 8333 +61 7 3355 8334 --------------------------------------------------------------------------- HI-TECH C: compiling the real world.

At 09:47 PM 11/4/99 -0500, you wrote: >anyone have any links or ideas on how to build an infrared camera/nitevision attatchment to a regular video camera if possible??? > Hi Mike!, I did some months ago some test with night vision (homemade :) with a Sony SCC370 (Hi resolution B/W camera C mount lenses), this camera can see the infrarred, (I tested it looking on the monitor with the camera the emissions of a remote control IR led :-), a very easy way to see if the camera sees infrared light). well so I though, the only think i need is a couple of IR leds and a low shutter speed (50 was the minimum available for obvious reasons :-), so I put about 10 IR leds and test what can I see, and well the camera can really see on the night with IR but, you need a LOT of IR LEDS!!, 10 leds wasn't enough. I'm actually using about 40 IR led and a some lenses that i found somewhere and I can see but nothing like the day light :) I don't know if other cameras (specially the cheaper ones, the Sony SCC370 is about 700 Dollars) will work. see you. Leandro J. Laporta (LU2AOQ) mail: @spam@lu2aoqKILLspamyahoo.com wrk: Arg. Assoc. for Space Technology. ham: TCP/IP high speed group HSG __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

ITT makes night vision goggles and camera attachments. They are starlight, not IR. TI makes good IR cameras with a video out that can attach to a VCR. Do a search for Information Unlimited's site for homebrew IR image converters. Mike M wrote: > anyone have any links or ideas on how to build an infrared camera/nitevision a ttatchment to a regular video camera if possible??? > > Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. > GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41

One thing to keep in mind in all of this discussion is that the IR spectrum is pretty wide. A regular CCD camera (without IR filter) is sensitive to the type of IR emitted by an IR LED,that is,near-IR. It is just below the frequency of visible red light and corresponds to a VERY hot object's emission (>1000 K, I think). This is NOT the same freq. of IR that is used by passive IR nightvision goggles, FLIR, heat-seeking missiles (just had to add this because I just finished playing Falcon 4.0, a GREAT combat flight sim),etc. That is in the multi-micrometer range,and is emitted by near room temp objects (as well as engines, people, animals, hot ground, etc.) These sensors are somewhat exotic because they often need to be cooled (especially if you want to pick up heat from animals,etc.,anything not much hotter than ambient) SO, if you want to make a passive night-vision IR scope, you will need special equipment that is sensitive to the middle region of the IR spectrum. If you want an active IR scope (with its own IR spotlight),then you can use a standard CCD and an IR led array. If you want a starlight scope, you need an image intensifier, which are available surplus (but I'm not sure of the price). Sean At 09:32 PM 11/5/99 -0500, you wrote: >ITT makes night vision goggles and camera attachments. They are starlight, not IR. TI makes good IR cameras with a video out that >can attach to a VCR. Do a search for Information Unlimited's site for homebrew IR image converters. > >Mike M wrote: > >> anyone have any links or ideas on how to build an infrared camera/nitevision attatchment to a regular video camera if possible??? >> >> Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. >> GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41 > | | Sean Breheny | Amateur Radio Callsign: KA3YXM | Electrical Engineering Student \--------------=---------------- Save lives, please look at http://www.all.org Personal page: http://www.people.cornell.edu/pages/shb7 KILLspamshb7KILLspamcornell.edu ICQ #: 3329174