Recent content by InventaNutta

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    Stumped on Dorcy 1AA 3led to lux mod

    The Inductor in that PIC appears to be 47uH value, assuming conventional marking. I'm currently messing with a similar circuit here. Although I mainly designed it to run a single 5mm 5500mcd White Led. It runs off 1.2 to 1.5V, and will run down to 0.8V still with a reasonable light O/P...
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    Cheap IR Filters??

    Heres a source I found for IR Illuminators and IR Filters>> http://www.cobra-optics.co.uk/infra_red.htm They have IR Lasers also Halogen rechargeable spotlights. The 2 IR laser units are very powerful. There's 2 models, one at 75mW and one at 150mW (I might have to grab one of these soon)...
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    Gen II recommendation for a newbie?

    Another link here http://www.cobra-optics.co.uk/ Steve
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    Cheap IR Filters??

    [ QUOTE ] Lasernerd said: The infrared Laser Diode in a CD player can really light things up! [/ QUOTE ]Yo Lasernerd this is indeed an interesting thought. My Gen 2 nightsight has a 50mW IR laser, focusable from 5 to 200 metres. Sadly when I acquired this sight, the previous owner had blown...
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    Cheap IR Filters??

    Webley445's method will stand a lot heat, by the nature of the material etc.. But I'm curious, The E6 transparency film, how does that standup to heat? in say a 35 Watt Halogen spotlight?? methinks melt-down?? Steve
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    IR Illuminator for a CCTV Camera (homemade)

    Re: IR Illuminator for a CCTV Camera (homemade) I think CCTV gear is more sensitive to IR illumination @ or around 810nm. Link to the ones I use>> http://www.roithner-laser.com/All_Datasheets/LEDs/ELJ-810-228B.pdf Steve
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    Newbie: I wanna build an IR Illuminator

    An addendum to my last post... I found the site for serious power IR leds. I have 2 of these, but purchased through a distributor, so took a while to find the original manufacturer. Heres a direct link to the PDF for this device...
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    A Shot in the dark...

    Just tried this with my old Canon UC10. I used my IR spotlight to illuminate a dark area. when viewed with the camera, light was apparent, but not much. Wavelength about 850nm. So my cam must have an aggressive IR filter. Steve
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    Can anyone help me ID this light?

    I'm looking at 2 big ones I have here, each have 6x IR led chips in the one case, with a lense. they run @9.5V nominal, @250mA. wavelength is 810nm, radiant power is 225mW nominal/1200mW/sr. They have a heatsink mount, the 2 types I have are flat plate heatsink, and 10mm stud mount. I have the...
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    Newbie: I wanna build an IR Illuminator

    ukpbz... Here's an extract from my post in Nightvision.. I obtained some ICI Persex, black of course, this also is indeed dark red. I cut a new lense for the 6V torch, replacing the original. An optical comparison between the Lee IR filter and the Perspex one appeared to have the same dull red...
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    color infrared LED under DV

    A small point of interest, the really cheap Mono CMOS Cams have a peak sensitivity @ around 800nm, a cheaper alternative to CCD types. Steve
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    Cheap IR Filters??

    Hi Guys, I'm new to this forum. I read this thread and would like to offer my findings on IR illumination...Dead cheap Like many here, I've messed with IR Leds etc, there are only a few that can cut it, the best I found were some german multi-chip beasties, which are not bad, but about £10...
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