Re: kiddie cam

[perry paolantonio <perryp@tiac.net>]

>The IR sensitivity is a function of using silicon as an imager - its

>response peaks in the infrared.  An IR cut filter (the blue disk that's

>behind the lens of a PXL2000, for example) is normally added to the optical

>path to prevent saturating the imager when outdoors, and reduce the

>shifting of apparent brightness of objects that strongly reflect or absorb

>IR.  Lower cost filters don't cutoff as sharply, which may be why the Kid

>Cam is especially sensitive to this region.  Surveillance cameras that are

>designed to work with IR illumination leave this filter out altogether.



so does that mean that if you remove the blue disk on the PXL, you'd have a

camera sensitive to IR? That would be really cool.



-perry

kinopravda productions

(owner of one dead PXL-2000)



________________________________________________

-perry

kinopravda productions

www.tiac.net/users/perryp



"all you need to make movies is a girl and a gun"



                                -jean luc godard