Wonders of CCD Barcode Readers

CCD BARCODE READERSlittle more complex than the applications for the more
Charge Coupled Device (CCD) barcode readers, alsobasic laser scanners. Credit, debit, and gift card
known as LED readers, and camera-based barcodepayments are commonly swiped through CCD
readers are newer technology than the standby penbarcode readers that can read the magnetic strip on
and laser barcode readers, but have really opened upthe backs of such cards. A similar technology is used
possibilities for barcode use. for employee shift tracking and security purposes at
Both CCD and camera barcode readers work inuniversities and public events. 
essentially the same way with an array of lightThe advantages of these barcode readers over the
sensors that analyzes the intensity of the light emittedlaser barcode readers lies in the wider range of
from the barcode labels. This is the main differenceapplications as well as the more precise readings that
between the CCD and camera barcode readers andthese newer barcode readers can provide. The
the laser readers, which reader a light frequencytechnology behind CCD and camera barcode readers
reflected off the barcode instead of the light emittedallow smaller barcodes to read with high levels of
by the barcode. There is really only one mainefficiency, which simplifies the pricing of tiny items and
difference between CCD barcode readers andreduces the likelihood that a barcode won't be read. 
Camera-based barcode readers. While aWhile the CCD barcode readers can read smaller
CCD barcode reader picks up an image of thebarcode labels, it has problems reading wider labels,
barcode label, the camera barcode readers can pickwhich is a major disadvantage. Another concern is the
up a two dimensional picture of the barcode. low range of the scanners, they usually cannot
The uses of CCD and camera barcode readers are afunction any further than 3 inches from the barcode.