Step 4: Build the LED array...

I used 12 LED's. 6 LED's wired in series to another series of 6 in parallel. Attach the 10ohm resistors to the positive end of the array.
<p>I have the same viewfinder as yours, can you give me some tips on wiring it?</p>
<p>hey kip! i was wondering, could i get the viewfinder somewhere else (a disposable camera maybe), since i highly doubt that my dad will let me take apart any of his... Or maybe you could make this one of your kits as well?</p>
<p>With so much of digital cameras around all you have to do is find a repair shop for video cameras. They would have numerous junk cameras lying around and would be happy to remove a viewfinder and sell it to you cheap. I am in New Delhi (India) and got my viewfinder for about $4 equivalent. It works but I am yet to progress the project. Presently I am assembling the IR light. Got a 100 LEDs.</p>
<p>WHERE TO BUY CONGO BLUE AND PRIMARY RED GEL SHEETS IN INDIA? PLEASE EMAIL ME IF YOU KNOW..... <a href="mailto:rashishvaibhaw@gmail.com" rel="nofollow">rashishvaibhaw@gmail.com</a> please tell me if you know, GOD will bless you!</p>
<p>WHERE TO BUY CONGO BLUE AND PRIMARY RED GEL SHEETS IN INDIA? PLEASE EMAIL ME IF YOU KNOW..... <a href="mailto:rashishvaibhaw@gmail.com" rel="nofollow">rashishvaibhaw@gmail.com</a> please tell me if you know, GOD will bless you!</p>
<p>WHERE TO BUY CONGO BLUE AND PRIMARY RED GEL SHEETS IN INDIA? PLEASE EMAIL ME IF YOU KNOW..... <a href="mailto:rashishvaibhaw@gmail.com" rel="nofollow">rashishvaibhaw@gmail.com</a> please tell me if you know, GOD will bless you!</p>
<p>WHERE TO BUY CONGO BLUE AND PRIMARY RED GEL SHEETS IN INDIA? PLEASE EMAIL ME IF YOU KNOW..... <a href="mailto:rashishvaibhaw@gmail.com" rel="nofollow">rashishvaibhaw@gmail.com</a> please tell me if you know, GOD will bless you!</p>
hi night visions are fun but thermals are the holy grail, any way of making these on the cheap, ive searched and searched but keep drawing blanks! ive come across this <a rel="nofollow" href="http://www.rapidonline.com/Electronic-Components/Sensors/Thermal-Sensors/TPA81-Thermopile-array-sensor/77927/kw/78-0792?source=googleps&amp;utm_source=googleps">http://www.rapidonline.com/Electronic-Components/Sensors/Thermal-Sensors/TPA81-Thermopile-array-sensor/77927/kw/78-0792?source=googleps&amp;utm_source=googleps</a><br/>and wanted to know if it was usable to create a diy thermal imager, so ive come to you to show me how :D<br/>
well it's a thermal sensor so it only gives out &quot;yes no&quot; signals, not thermal images
Help Please. Hello i have taken apart and found the positive, ground, and video wires and the tube works so does the camera so i am positive about the wires. My problem is when i tey to use a different video source i dont get any picture i bought a black and white little cmos camera that has a yellow rca connector and i hooked that up but no picture i also tried a color surveilence camera it didnt work either so i tried a vcr/dvd player which also didnt work UNTIL i tried the component RGB connector then i finally got a picture when i hooked to the Green port the other two were scrambled but there was some picture. So my question i guess is why does the normal yellow composite signal not work and the green component signal work? is there some way i can hook my B/W camera to some resistors or capacitors or something to make it work? what am i doing wrong? does the viewfinder need a different type of signal than everyone elses that has gotten this to work with B/W cameras? thanks to anyone that can help
so i did some testing with resistors nothing happened but i then went to capacitors and viola it seems any capacitor will make it work i put it between the output of the camera and the input of the view finder or you can put it between the ground of the cameras output and the ground from your powersource either way worked for me. I used a couple different electrolytic ones and ceramic ones they all worked size didnt make a difference in picture quality that i could notice. i stuck with a small ceramic capicitor . OK then just thought id post an update incase anyone else might have a similar problem
your viewfinder is not pal signal supported
Hi, <br> <br>I just read your message regarding the viewfinder rewiring. I currently have the same problem : I found the proper ground and + wires to power up the viewfinder, but I have a very poor image quality when I hook up the video signal (I get an partial picture shaped like a horizontal line that drops in and out of the screen). Did you get the same problem ? <br>I will try to add a capacitor to see if its sorts things out. What kind of capacitor did you use exactly ? I am very surprised that any kind of capacitor can fix the problem. I also don't know how a capacitor can, electronicaly speaking, fix a video signal. Maybe you have an opinion about that ? <br>Thanks in advance !
that sounds pretty much like what was happening to me. The first capacitor i used was an electrolytic 220uf 50volt cap but that was just because it was the first one i found. I then switched to one of those green chiclet looking ceramic caps i think the value was 0.01uf it had the code 103k on the cap itself. I just assumed that any cap would work because of the vast difference in the two that worked for me. I really have no idea about why it would make it work but it did so i just thought id post it. My guess would be that it filters out something but you would think that it would need to be a specific value if that were the case. Let me know if it helps yours. I put mine between the +output of the B/W camera and the video Input of the viewfinder
Thanks natsud ! <br>Actually, my setup didn&rsquo;t worked because I forgot to hook up the video ground cable ^_^; <br>I managed to decode 2 viewfinders so far. For the record, I also had the case where the viewfinder had 2 video cables. None works if you hook one of them with a video signal. You have to join the 2 cables together then hook it up with a video signal. <br>Cheers <br>
Wow, that's impressive. Is there a danger to the operator of burned eyeballs if someone hits it with a car headlight or tactical flashlight (surge)?
naa,it will be like a camera pointed at a bright bulb,try it,it might damage your camera but the max brightness you get is like white image.
Will this work with a color camera and not black and white?
Hi All, I'm trying this with a Panasonic M7 and there are 9 (yes 9!!) wires from the viewfinder: red, black, grey, purple, white, pink, brown, yellow, and orange. Any ideas as to which are which? I'm quite new to this and don't to risk popping something by trying the 'trial and error' method! many thanks. J
If anyone's interested it was +ve= Red. -ve= Orange and Video = Pink
Hi!<br>a have a viewfinder with 4 yellow wires and 1 black wire. how do i find out which one is video and power?
well, the best way would be with an oscillscope and volt meter, but not everybody has those, so simple trial and error will have to suffice
ok thank you :)
This might be a dumb question but, based from my understanding of this, i have a question. If the goal is to see in darkness, why do you need led lights that would still emit light? 'coz for me its just like replacing the filter with black and white then tints it to green. If that is so I'd rather get a green plastic and put it in front of the lens of a camera. I don't really get the function of the led lights. <br><br>-please shed some light for me.
They are infra red led lights.
<br> I made this project a while back, just without the camera and view finder part.<br> <br> It works very well!<br> <br> <div class="media_embed"> <iframe frameborder="0" height="345" src="http://www.youtube.com/embed/B27MBqS3zHw" width="560"><br> </iframe></div> <br>
<br> This is amazing, the video just gives us all the information in the best way possible.<br> <a href="http://www.eyespyoptics.com/index.php?cPath=2">http://www.eyespyoptics.com/index.php?cPath=2</a><br>
Hello<br><br>I would like to make a 2 or 3 led of this, so I can see in the dark with my mobile.<br><br>I can see the led butt they are very weak.<br><br>How is this possible?<br><br>What must I do?<br><br>THANK you for your help!
http://www.instructables.com/id/Cell-Phone-Night-Vision-Under-10/ on the sidebar that says &quot;related&quot;... right on this page.
Your camera probably has an IR filter that filters out the infrared.<br>If you want to see the infrared better you will have to remove that filter but this is quite a hard job.
How would an old phone camera that picks up IR (and the phone screen used as the monitor), without an IR pass filter, and a 250mW LED array be worse/better from your setup? That's all I have handy, and I want to know before I go buy the LEDs at the nearby warehouse.
My viewfinder has four wires. Yellow and three brown. Im pretty sure yellow is video in but I read below it could be ground. The positive I know I have found, it's written on the board, and the ground I think is another brown going to the largest PCB pad. The third brown I don't know about, it goes directly to a green SMD(resistor I think). Inside the case it shows directions for replacing the picture tube, would this be worth trying? The camera I got it from would not display video through the viewfinder so I'm guessing its the tube, is their any easy way to test the tube? I appreciate any help
Same here. My picture would not display but the camera worked fine, i found that a pin was disconnected but could not tell if reconnecting it worked. What type of camera did you take it from? Which wire was positive 'cause to only ting that I could find was a + on one side of the pin. It was next to the yellow wire. As for the extra wire, one wire will be the H-synch which I think can be left alone. I may be wrong thats just what my camera's schematics looked like.
Looks like I have the same viewfinder as you, the only difference is the big wires going to the tube are different colors. The wire that I think is positive is the brown one right next to the yellow one, it connects to the pad under the + and then goes to the bottom of the board. After lots of web searching the best I could find was a datasheet for the big metal rectangle part, which turns out to be a flyback transformer. I think the camera was Hitachi but I can't find it so im not sure. I don't know what else to do so if you find anything that could be helpful let me know.
I only have 4 wires on mine, Is one of them a common ground for video and power?&nbsp; Mine also runs on 4.9vdc... so any hints on not frying this... <br />
use a resistor
Use a 7805 regulator it will reduce the voltage to 5 volts. Be sure to put a heatsink on the 7805.
You could use a regulator, but why not just use a resistor?
You would not use a resistor to reduce the voltage of a power supply. It would only work if the current drawn by the device were constant, which is unlikely.<br><br>There are various things you can do (Zeners, DC-DC converters etc) but by far the simplest, although not the most efficient, is a 7805. For a project such as this I would not consider anything else, but as rocketman said, you will probably need a heatsink.
ALSO: if you think you can help me with this in a more &quot;live&quot; setting my email is fire_darkness_shadow @ Yahoo . com <br /> <br /> I can give you my phone number and maybe someone can walk me through figuring this out.<br /> <br /> Colors of the wires are as follows:<br /> Pin 1 Small yellow<br /> Pin 2 Med Black<br /> Pin 3 Sm Grey or white<br /> Pin 4 Sm orange<br /> <br /> Pins 2+3 share a heat shrink &quot;sleeve&quot; while 1 and 4 are &quot;loose&quot;<br />
Does anyone know why i can get my panasonic vhs palmcorder viewfinder to work when i plug it into a dvd player but not a spy camera i have used an RCA wire to connect to 2 wires from the viewfinder that i plug into the dvd player but when i plug it into a spy camera's phono jack i get nothing
This looks like it would work:<br>http://www.amazon.com/SC-NVA5-Wired-Security-Camera-Adapter/dp/B000V0AHRA
hey i have a view finder a panasonic one but it has 8 wires orange,purple,pink,black,yellow,red,grey and white anyone know how to figure out wich one is wich?
Try these two pages:<br>http://www.lucidscience.com/pro-night%20vision%20viewer-2.aspx<br>http://www.lucidscience.com/pro-night%20vision%20viewer-3.aspx<br><br>They tell how to do it all.
cool ill try that thank you so much for the reply
Hey, can anyone help me with this, i have a viewfinder off a panasonic pv-320d, it pretty much is exactly the same as the one pictured here (same wire colours, and 2 or 3 different components, probably a different board revision). Has anyone had any experience with this viewfinder, unfortunately i don't have the camera to test outputs, so does anyone know what wire corresponds to what?<br />
i don't know if you figured this out yet, but if not, if you have a yellow, blue, and gray wire, yellow is gnd for video and power, blue is +9vdc, and gray is composite video in.
&nbsp;thank you! this was very helpful. i can now see my ps2 games on my tiny screen, but only in black and white i have. i have more wires than the ones above.&nbsp;<br /> the thickest is a brown wire (traced to be ground.)<br /> red (used as&nbsp;ground&nbsp;for video)<br /> black (traced to be positive voltage)<br /> white<br /> orange<br /> yellow<br /> gray (used for video, but it comes in black and white, and the viewfinder is colour i believe)<br /> and blue<br /> <br /> I dont know if my connections are right, some help would be great :D<br /> <br />
If it is a crt viewfinder, then it should be black and white.
thanks a lot. I've kinda been putting this project off due to lack of progress with my viewfinder(s), but this helps a lot. I cant find a pinout for the video ic anywhere either so i didnt really know where to start with this.<br />

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