This lecture explores the advancements in fluoroscopy detectors, focusing on the use of black panel detectors for live imaging, pulse imaging, and high-resolution imaging. It delves into the interaction of X-rays with biological materials, the importance of contrast resolution, and the role of anti-scattering grids. The lecture also discusses future developments in color imaging, the use of different materials for contrast enhancement, and the potential of photon counting technology for improved image quality.