http://wiki.inforactiva.net/index.php?action=history&feed=atom&title=Barcode_reader 2026-04-16T18:00:34Z Revision history for this page on the wiki MediaWiki 1.23.5 http://wiki.inforactiva.net/index.php?title=Barcode_reader&diff=93&oldid=prev 2014-12-04T20:07:29Z

<p>Created page with &quot; == Barcode Reader == A barcode reader also know as barcode scanner is an electronic device for reading printed barcodes, it consists of a light source, a lens and a light s...&quot;</p> <p><b>New page</b></p><div><br /> == Barcode Reader ==<br /> <br /> A barcode reader also know as barcode scanner is an electronic device for reading printed barcodes, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.<br /> [[File:manual-barcode-reader-laser-4980-5796485.jpg|350px|]]<br /> <br /> == Types Of Barcode Reader ==<br /> <br /> ---- '''Pen-type readers'''<br /> Pen-type readers consist of a light source and photodiode that are placed next to each other in the tip of a pen or wand.<br /> [[File:Pen.jpg|250px|]]<br /> <br /> <br /> ---- '''Laser scanners'''<br /> Laser scanners work the same way as pen type readers except that they use a laser beam as the light source and typically employ either a reciprocating mirror or a rotating prism to scan the laser beam back and forth across the bar code.<br /> [[File:Laser.jpg|250px|]]<br /> <br /> ---- '''CCD readers'''<br /> CCD readers use an array of hundreds of tiny light sensors lined up in a row in the head of the reader. Each sensor measures the intensity of the light immediately in front of it.<br /> <br /> <br /> [[File:Ccd.jpg|250px|]]</div>

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