Device for quality testing barcodes, in particular 2D matrix codes

摘要

The device has a support (14) forming a supporting surface (10) that runs perpendicular to an optical axis (18). A digital camera (50) i.e. area scan camera, records a code in different and determinable orientations with respect to the optical axis to determine a total value for quality of the code from image data. The support is formed by a rotary table (16) that is rotatable around the optical axis. The table is transparent in a central field of vision (20), and the camera records the code in the field of vision from bottom. Light sources (60) i.e. LEDs, are arranged below the table.