Patent ID: 6534763
Filing Date: 2003-03-18
Classification: H04N

Abstract:
A lens assembly for use in connection with a line scan camera for scanning objects conveyed past an object plane, comprising:a lens mount including a base member; a lens component fixedly mounted upon said lens mount; calibration means mounted upon said base member of said lens mount for engaging fixed parts of a base member of the camera when said base member of said lens mount is mounted upon the base member of the camera so as to positionally adjust the disposition of said lens component with respect to the object plane of the camera; and means for mounting said base member of said lens mount in an adjustably fixed manner upon the base member of the camera so as to accommodate said positional adjustment of said base member of said lens mount with respect to the object plane by said calibration means, whereby once said calibration means have been calibrated, further calibration of said calibration means is not required in order to accurately position said lens component with respect to the object plane of the camera even if said lens mount is dismounted from the base member of the camera and subsequently remounted upon the base member of the camera.