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Messages - Diffusion

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IR Pens / Rechargeable IR pen mod
« on: February 28, 2008, 10:25:11 AM »

First thing I did was search for a good LED pen / flashlight.

I looked for one with a push button on the side so that activating the light while "drawing" would be easy.

I found this one on Ebay and bonus its rechargeable via USB!:

It is from "Genaldi" more info here:
(you can also buy it on their site for $10)

The dimension is about 3/4" wide X 1/4" High X 2.5" long.

Here is what I did to modify it for an IR LED

1)I unscrewed the mini screw holding the battery cover and removed the battery.
2)Using a small flathead screwdriver I was able to separate the 2 halves (they are glued / snapped together.
3) When separating the 2 halves be careful of the wire from the battery connector to the main board. I didn't see it and had to re solder the wire to the mainboard after.
4) Remove the mainboard (slides off guides easily.
5) Heat the solder (using your trusty solder gun)on the 2 connectors for the LED and remove it. Take not of which side is the "fat " end so that when you put on the IR LED that it matches.
6) Cut your IR LED to the same length and then re heat the solder on the mainboard and attach the IR LED.
7) Re insert the Mainboard into the case and close. insert battery and re screw the cover closed. To test that everything is still working fire up the laser.

Your done!
I am going to test the PEN soon but this was very easy to do.

IR Pens / Re: Prebuilt IR pen light found.
« on: February 05, 2008, 09:34:10 AM »
Looks so coool and professional...
only 2 things defray me..

1. Price
2. AAAA batteries (that's 4 As)

For $20 I think that is pretty cheap considering its already IR and you don't need to mod at all.
Is there any reason to think this wouldnt work? Am I missing something?

IR Pens / Prebuilt IR pen light found.
« on: February 01, 2008, 01:01:49 PM »
I have been peeking in here the last few days and while searching on Ebay for a good LED pen light I ended up going to the website for Streamlight (

They off several LED lights as well as an Infrared one here:

Price is about $20 ish you can search for a local dealer on their site.

StylusŪ IR Combo

The bright LED penlight is compatible with all night vision equipment.

    * High-intensity LED lasts 100,000 hrs.
    * Powered by 3 "AAAA" alkaline batteries
    * Battery life 20x greater than a standered flashlight
    * Runs up to 60 continuous hrs.
    * Momentary blink and constant "on" modes
    * Serialized for easy identification
    * Pocket clip for easy access
    * Includes Sharp SpotŪ, Glare Guard and holster
    * 6.21", 1.1 oz
    * The IR LED can not be seen without Night Vision Goggles.

looks like this

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