Keyence launches world's smallest laser barcode reader

Assembly Automation

ISSN: 0144-5154

Article publication date: 1 September 2000




(2000), "Keyence launches world's smallest laser barcode reader", Assembly Automation, Vol. 20 No. 3.



Emerald Group Publishing Limited

Copyright © 2000, MCB UP Limited

Keyence launches world's smallest laser barcode reader

Keyence launches world's smallest laser barcode reader

Keywords: Keyence, Sensors, Microsensors

Using technology originally developed for ultra high accuracy sensors, Keyence has launched the world's smallest laser barcode reader (see Plate 10). As well as the semi-conductor and electronics markets, the super compact BL-600 series is aimed at all manufacturers who rely on barcodes for identification and production control.

Plate 10Keyence BL-600 series

Measuring just 31 x 40 x 21mm, the BL-600 not only smashes the world record for the smallest barcode reader, but also has twice the range of other readers in its class. At its heart is a new and innovative microscopic polygon mirror and motor originally aimed at advanced sensors. However, the series also comes with a host of other industry firsts.

Using Keyence's own auto gain control (AGC) circuits for advanced, high-speed performance, the BL-600 series offers excellent reading depth and angle characteristics. Built-in specular reflection cancel (SRC) circuits greatly reduce the effects of extraneous reflected light, guaranteeing more reliable and stable reading.

In another world first, the BL-600 series has a built-in preventive maintenance information (PMI) function for monitoring and reporting reading performance during operation. PMI is a quick way to detect potential reading error problems and is an extremely convenient tool for both acquiring valuable maintenance information and investigating the causes of reading errors.

Other novel features include a built-in test mode for faster installation and maintenance, while a five-bar LED display indicates the reading ratio (decoding/100 scans) in real time, and a scanning speed of 500 scans/second ensures exceptional accuracy even on very fast production lines.

The BL-600 series also boasts a number of clever design features, including die-cast magnesium construction for strength and rigidity, exceptional resistance to cope with the severest environments, and a flat reading surface making them as easy to use as sensors.

A variety of types are available to suit different application conditions. Front- and side-type are offered to make the best use of limited space, while single-scan or raster-scan types can be selected depending on barcode quality. Selection can also be based on the minimum bar widths of the barcodes to be read - the standard model having a minimum width of 0.19mm while the high-resolution model is down to 0.125mm.

Technical contact: Shinji Furuta, Keyence UK Ltd, 504-510 Elder House, Station Square, Elder Gate, Milton Keynes, Buckinghamshire MK9 1LR. Tel: +44 (0)1908 696900; Fax: +44 (0)1908 696777; E-mail:

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