Euclid's anatomy

This image shows what Euclid looks like on the inside, its optical bench. From this angle, light (white arrow) enters the telescope from below and is redirected by several mirrors to a special component called a dichroic. This component separates the visible light (orange arrow) from the near-infrared light (red arrow). Visible light is reflected and directed to the VISible Instrument (VIS, near the top), and near-infrared light passes through it to the Near-Infrared Spectrometer and Photometer (NISP, on the right).