Webcams and IR lighting.

Archived from groups: alt.comp.periphs.webcam (More info?)

You would need no filter at all. Just IR lasers of the right wavelength,
well within the spectral response of the CCD and well outside the spectral
response of the eye... Of course, the reach of your 'night seeing' will be
limited by the power of your 'IR torchlight'.

Rgds

Javier


"Sonic" <dan@corned.beef.valvesunlimited.demon.co.uk> escribió en el mensaje
news:bhd5k0loga3gtjvg1udj1fmb0i7gqkj1eg@4ax.com...
> Hiya,
>
> hopefully this is the place to ask this question.
>
> I'm paying with a couple USB2 Trust webcams (380 space cam), making a
> bit of a CCTV system for our garage.
>
> Now these work ok in day light, but can't see anything when dark.
>
> If I have a bank of IR LEDs, or something that lights in IR, would the
> webcam be able to 'see' in the dark, or do I need a filter on the
> lens?
>
> Thanks for any comments
>
> --
>
> Dan Allen
>
> *******************************************
> * Nothing is illegal until you get caught!*
> *******************************************

Archived from groups: alt.comp.periphs.webcam (More info?)

On Sat, 11 Sep 2004 15:56:18 GMT, I was awakened from a daze by
shb*NO*SPAM*@comporium.net (Si Ballenger) in alt.comp.periphs.webcam
who caused me to spill hot coffee on my keyboard by writing the
following:

>On Sat, 11 Sep 2004 09:28:10 +0100, Sonic
><dan@corned.beef.valvesunlimited.demon.co.uk> wrote:
>
>>Hiya,
>>
>>hopefully this is the place to ask this question.
>>
>>I'm paying with a couple USB2 Trust webcams (380 space cam), making a
>>bit of a CCTV system for our garage.
>>
>>Now these work ok in day light, but can't see anything when dark.
>>
>>If I have a bank of IR LEDs, or something that lights in IR, would the
>>webcam be able to 'see' in the dark, or do I need a filter on the
>>lens?
>>
>>Thanks for any comments
>
>If your main interest is in the dark, it might be better to buy
>the cheap B/W cams that are made for working with IR. Many
>daylight cams have IR filters installed to specifically block out
>IR for a better pix. Some cheap cam sources below.
>
>http://www.supercircuits.com/
>http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47546

Thanks for the info,

I'll have a play and see what happens:-)

--
Dan
Dan Allen

*******************************************
* Nothing is illegal until you get caught!*
*******************************************