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Difference between laser scanning gun and red light scanning gun light source Laser scanning gun
Latest company news about Difference between laser scanning gun and red light scanning gun light source Laser scanning gun

Difference between laser scanning gun and red light scanning gun light source Laser scanning gun

 

The hand-held laser scanner emits a beam of light through a laser diode and shines on a rotating prism or a mirror that swings back and forth. The reflected light passes through the reading window and shines on the surface of the barcode. The light returns to the photoelectric after being reflected by the bar or space. On the sensor, it is decoded and converted into an electrical signal and sent to the computer processing center for processing.

 

Laser scanning gun features

Laser scanning gun has strong penetrating power, long scanning distance (depth of field) (5-35 cm), large scanning width (25cm), fast scanning speed, sensitive response, radiation, cheap price, but poor drop resistance, and can read damaged codes The ability is weak, it is only suitable for paper one-dimensional barcodes, and cannot be used for two-dimensional and mobile phone screen scanning. Because its working principle is that the rotation of the prism turns the point laser light into linear light, its life is relatively short.

Red light scanners use one or more LEDs to emit light that can cover the entire barcode. The image of the barcode is transmitted to a row of lights, sampled by each individual photodiode, and the adjacent detection results are "black" or "White" distinguishes each bar or space to determine the characters of the barcode. In other words, the CCD reader does not pay attention to reading each "bar" or "space", but the entire part of the barcode, and converts it into a code that can be decoded. Signal (image type)

 

Red light scanner features

The red light scanning gun has weak penetrating power, relatively short scanning distance (depth of field), fast scanning speed, sensitive response, no radiation, moderate price, supports screen scanning, and is better than laser in breaking ability. It is only suitable for one-dimensional barcodes. Cannot be used in 2D.

 

How to choose between laser scanning gun and red light scanning gun?

 

When you only need to scan paper barcodes, and the barcodes are slender, choose a laser scanner, because red light scanners cannot scan small barcodes. If you need to scan barcodes on paper and electronic screens, choose a red light scanner. Compared with laser scanners, red light scanners are more versatile and can scan both paper and electronic screen barcodes.

 

For more inquiries, please contact Susan Liu whatsapp:86-18502019799 or email address:sales03@luckydoor.net

 

Pub Time : 2023-08-07 11:15:50 >> News list
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Guangzhou Luckydoor Electronic Equipment Co., Ltd

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