X-ray Viewer

 An X-ray Viewer (or film illuminator) is a light-emitting device designed specifically for viewing analog radiographic films. It provides a uniform, high-luminance white light source that backlights the film, making the captured image of bones, organs, and tissues visible for medical diagnosis. While its role has diminished with the widespread adoption of digital radiography and PACS monitors, it remains a crucial tool for reviewing historical film archives, in clinics with hybrid analog/digital systems, and for teaching. Modern LED viewers offer cool operation, energy efficiency, and consistent light quality, serving as an essential interface between the physical film and the diagnostician's eye.