The invention relates to small dimension image recorders, such as an image recorder, comprising a matrix of rows and columns of photosensitive points, arranged on a chip of a generally square or rectangular form with believed corners, characterised in comprising a reading register arranged at the base of the matrix. The register is bent to follow the bevelled corners of the chip and thus comprises a horizontal piece and two oblique pieces. The sensor further comprises means (ZI.sub.n) to direct the photosensitive charges form the columns terminating opposite the beveled corners towards the stage of the reister situated in the oblique part along the beveled corners. The above is of application to intraoral dental radiological sensors.
