公开(公告)号：WO1995016973A1

公开(公告)日：1995-06-22

申请号：PCT/US1994013323

申请日：1994-11-16

Applicant: NORAND CORPORATION

Inventor： NORAND CORPORATION ,  VADIM, Laser

IPC: G06K07/10

CPC classification number: G06K7/1417 ,  G06K7/10574 ,  G06K7/10722 ,  G06K7/10752 ,  G06K7/10811 ,  G06K17/0022 ,  G06K2007/10524 ,  G06K2207/1011 ,  G06K2207/1013

Abstract: The present invention utilizes two-dimensional photosensitive arrays (SR, SL) for decoding two-dimensional optically readable information sets which provides a best focus. A lens is provided for each of the photosensitive arrays movable in a trajectory (k-k', m-m') such that as the lens moves away from the photosensitive array, the distance between the lenses decreases. The varying distance between the lenses provides image zones (A, B, C) having the same overlap in each zone.

Abstract translation: 本发明利用二维光敏阵列（SR，SL）来解码提供最佳焦点的二维光学可读信息集。 为每个可在轨迹（k-k'，m-m'）中移动的光敏阵列提供透镜，使得当透镜从光敏阵列移开时，透镜之间的距离减小。 透镜之间的变化距离提供在每个区域中具有相同重叠的图像区域（A，B，C）。