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CCD Eyepiece for Binoculars

CCD Eyepiece for Binoculars
Have you ever looked through your binoculars and thought " I wish I could get this on tape" ? Well now you can. In this Instructable I'll show you how to build a cheap CCD eyepiece that will fit most binoculars.
You can use it with any camcorder that has a video input to capture whatever you can get a view on with your binoculars.
 
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Step 1Materials and tools:

Materials and tools:
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Gather the following, but note nothing is critical. Here and there I'll tel you how you could do it differently.

Tools:

saw, soldering iron, pliers, electric drill with hole saw, sharp knife, 4mm threading tool.

Materials:

- 1 cheapo binoculars (mine cost me +-8 euros, but they are quite good.)
- about 12 cm of PVC tubing , inner diameter must be a larger (1cm is ok) than binocular diameter. (I used 40mm diameter, 1.8 mm wall thickness, thicker is ok too).
- 6 nylon 4mm 12..20 long screws.
- RTV silicone or other adhesive.
- 1 CCD camera module. I used what I could get, which was a module cheap B&W module intended to go in a security camera. It cost me <20 euros. If you have the possibility use a color module with a decent number of lines, as this will give you a better result in the end.

-Some electronic components to power and attach the CCD module. This really depends on the module you can get.
Mine needed 5V, so:
- 78L05 Voltage regulator
- 10uF 16V capacitor
- 10uF 35V capacitor
- 220 ohm resistor
- red 3mm led.
- 1N4148 diode for protection against power-reversal,
- connector to go to a wallwart
- cable with video connector that matches the camcorder/monitor/videorecorder you want to use.
- a piece of perfboard.

optional: AA-size battery holder and switch, if you want a portable power source.

I couldn't find the exact datasheet of the CCD module I bought (they didn't even have it in the shop), but here is a datasheet of one that looks just like it, and had the same connections.

Incidently, you could do this hole thing also with a gutted webcam and use a laptop to record what you see through your binos, while you're on the road.
ITM-M-SC-N.pdf(595x842) 72 KB
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23 comments
Aug 22, 2008. 12:22 PMmweston says:
I did this with a telescope not to long ago, it might be an instructable soon...
Aug 25, 2008. 2:32 PMmweston says:
It is color, and the lens is zoomed in all the way (to act like the eyepiece that magnifies it for the human eye). It has great color too, looking at stars the blues come out really well, greens and reds are solid too. Its really easy to focus, so the result is always really pleasing! Here are some more photos, some might be blurry because I had to hold the camera with one hand while positioning the... other camera ~P.S. to mount it I used a little piece of rubber that I glued onto the camera and then inserted it into the focusing tube and tightened it down with the eyepiece set screw.
Aug 19, 2008. 10:54 AMMadScott says:
This is a great basic tutorial for putting video in nearly any optical device from binoculars to microscopes and on to more unusual things like interferometers and spectroscopes -- would be very useful in school demonstrations and the like too.
Aug 20, 2008. 9:46 AMrofus says:
make something for a memory stick so you can take it on the go
Aug 23, 2008. 6:19 PMsmabber says:
very nice. ill have to give it a go
Aug 23, 2008. 5:48 PMmothflavour2 says:
totally digging the amber monitor. Nice instructable.
Aug 22, 2008. 8:47 AMkd1uc says:
I love the thinking going into this. Not sure if I would go through all of this because I can buy a ready made pair for about 40 USD and you don't loose one eye. Again love the idea.
Aug 19, 2008. 10:07 AMKnex Guru says:
Coule i put this on a sniper optic?
Aug 19, 2008. 10:31 AMKnex Guru says:
A 4 x 15 about the diameter of a dollar coin.
Aug 16, 2008. 11:51 PMV-Man737 says:
Favorited!
Aug 16, 2008. 7:33 PMPineapplebobTheGreat says:
love it.
Aug 16, 2008. 3:30 PMrimar2000 says:
Good idea, thanks. Well done.
Aug 16, 2008. 3:29 PMfinfan7 says:
I once got something like this for free from a bank for opening an account. I should find that thing.
Aug 16, 2008. 1:31 PMlennyb says:
this is a very good idea

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