Patent ID: 7857224
Filing Date: 2010-12-28
Classification: G06K

Abstract:
1. A system comprising a barcode reader adapted to obtain one or more images of a two dimensional direct part marking barcode, the barcode reader comprising: a camera, the camera defining a camera axis; an on-axis lighting module that comprises first set of light emitting diodes (LEDs) having a first emitted color, the on-axis lighting module adapted to direct light on an on-axis lighting direction that is approximately collinear with the camera axis; an adjustable off-axis lighting module that is substantially minor-less, filter-less, and lens-less, the off-axis lighting module comprising a second set of LEDs having a second emitted color, the off-axis lighting module adapted to direct light in an off-axis lighting direction that intersects the camera axis at an adjustable angle, the adjustable angle less than approximately fifty-five degrees.