公开(公告)号：EP1112547A1

公开(公告)日：2001-07-04

申请号：EP99952892.0

申请日：1999-09-10

Applicant: Robotic Vision Systems Inc.

Inventor： DOWLING, John, H. ,  STERN, Howard ,  FIGARELLA, Luis, Alberto ,  McKINLEY, Harry, R. ,  McKINLEY, Philip, E. ,  LEE, Jason, J.

IPC: G06K7/10

CPC classification number: G06K7/10742 ,  G06K7/10811

Abstract: A hand-held imager (10) which is capable of reading both linear and two dimensional symbologies, which can perform focusing and illuminating steps quickly and accurately so as to eliminate variation in the position of the imager (10) relative to the code becoming a negative factor, in which can operate in environment where the imager (10) is anywhere from 1.5 inches to 16 inches from the code. The imager (10) includes an imaging system having a focusing system, an illumination system (82), and a two-dimensional photodetector (93) which forms an image of the coded symbology. After achieving targeting of the coded symbology, the scanning system adjusts the focus between multiple different focuses, and utilizes a portion of the two-dimensional photodetector (93) to determine the optimum focus.

公开(公告)号：EP1112547B1

公开(公告)日：2006-07-05

申请号：EP99952892.0

申请日：1999-09-10

Applicant: Robotic Vision Systems Inc.

Inventor： DOWLING, John, H. ,  STERN, Howard ,  FIGARELLA, Luis, Alberto ,  McKINLEY, Harry, R. ,  McKINLEY, Philip, E. ,  LEE, Jason, J.

IPC: G06K7/10

CPC classification number: G06K7/10742 ,  G06K7/10811

Abstract: A hand-held imager (10) which is capable of reading both linear and two dimensional symbologies, which can perform focusing and illuminating steps quickly and accurately so as to eliminate variation in the position of the imager (10) relative to the code becoming a negative factor, in which can operate in environment where the imager (10) is anywhere from 1.5 inches to 16 inches from the code. The imager (10) includes an imaging system having a focusing system, an illumination system (82), and a two-dimensional photodetector (93) which forms an image of the coded symbology. After achieving targeting of the coded symbology, the scanning system adjusts the focus between multiple different focuses, and utilizes a portion of the two-dimensional photodetector (93) to determine the optimum focus.