Abstract: A light collector for collecting and detecting emitted light from a raster scanned photostimulable phosphor sheet in a photostimulable phosphor imaging apparatus includes a generally rectangular slab of transparent material having a thickness greater than 20 mm, a first face of said slab being arranged along the scan line of the photostimulable phosphor, said first face making an angle .theta. of between 10.degree. and 15.degree. with respect to a perpendicular to the surface of the stimulable phosphor sheet, and a plurality of photomultiplier tubes being arranged at an opposite face of the slab. An elongated mirror is arranged opposite first face for directing light emitted from the phosphor onto said first face of said slab of transparent material.

Abstract: A light collector for collecting and detecting emitted light from a raster scanned photo-stimulable phosphor sheet in photo-stimulable phosphor imaging apparatus includes a generally rectangular mirror box having two opposite open ends, one of the open ends being arranged along the scan line of the photo-stimulable phosphor, and a plurality of photomultiplier tubes being arranged at the other open end of the mirror box. An elongated mirror is arranged opposite the one open end of the mirror box for directing light emitted from the phosphor sheet into the mirror box.

Abstract: A light collector for collecting and detecting emitted light from a stimulable phosphor sheet includes a cylinder with an elliptical cross section having specularly reflective internal surfaces, a pair of plane mirrors at the ends of the cylinder, and a row of photodetectors located along one side of the cylinder in the vicinity of a focal line of the ellipse. The stimulable phosphor sheet is positioned in the vicinity of the other focal line of the ellipse, so that most the light emitted from the stimulable phosphor is reflected once from the elliptical reflector to the light detector.