Imaging Systems
Device that creates the image.
Notes:
Imaging systems are then the devices that creates the images. So for our example, a photograph is made not only with camera, but the film, and the processing of that film.
X-ray is similar, where you need the source of x-ray, as well as the film to capture the image.
And as for television, you need camera, broadcasting equipment, television receiving set, and so on.