A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode’s image data provided by the sensor and sending the barcode’s content to the scanner’s output port.
The scanner resolution is measured by the size of the dot of light emitted by the reader. If this dot of light is wider than any bar or space in the bar code, then it will overlap two elements (two spaces or two bars) and it may produce wrong output. On the other hand, if a too small dot of light is used, then it can misinterpret any spot on the bar code making the final output wrong.
The most commonly used dimension is 13 Thou (0.33 mm), although some scanners can read codes with dimensions as small as 3 Thou (0.075 mm). Most manufacturers advertise bar code resolution in Mil, which is interchangeable with Thou. Smaller bar codes must be printed at high resolution to be read accurately.
Barcode scanners are widely used across industry verticals as it enables seemless data flow in a fast and accurate manner.
Holoflex offers a bouquet of various Barcode Scanners both 1D and 2D through our association with OEMs like Datalogic, Honneywell, Motorola etc. to fit into any of your existing labelling process or for any new processes.