Tony Dutton remarks that colour CCD sensors in video cameras often have a blue IR filter mounted in front of the sensor, an inspection of my colour CCD camera shows this to be the case. Mervyn Hobden and Max Jens Jensen also remarked that infra-red is not usually a problem with colour CCD cameras. I read with interest your article on Micscape on the small CCD camera. I have just purchased one of these for use on an infra-red microscope I am constructing at work. Therefore they are very sensitive to the near infrared, up to 1.3 micron wavelength.
Trouble is, a tungsten bulb pushes out far more energy in the infra-red than it does in the visible.
The result is an out of focus image with lousy contrast. You will need some sort of an I.R. filter between the camera CCD and the illuminator, cutting off all radiation above 0.8 micron to get a decent image. The heat stopping filter out of a slide projector would do. The black and white miniature CCD camera used was highly sensitive to infra-red. The author reported that horn, skin and other substances of interest are also IR transparent.