Working Principle, Features And Applications Of QR Code Scanning Lens
A QR code scanning lens, as the name suggests, is a lens device that can scan and decode QR codes. This lens is typically used in conjunction with image processing modules and decoding software to quickly and accurately decode the information embedded in QR codes.
1、The working principle of QR code scanning lens
The QR code scanning lens usually uses an image sensor and an optical system to capture the image on the QR code and convert it into a digital signal, which is then processed by decoding software to finally obtain the information contained in the QR code. Its components and main principles are as follows:
Optical system
The optical system mainly includes lenses, lenses and filters, etc. Their function is to accurately project the image on the QR code onto the image sensor, control the focus of light and adapt to different scanning distances.
The scanning lens
Image Sensor
QR code scanning lenses usually use CMOS or CCD image sensors, which can convert optical signals into electronic signals and output them to decoding software for processing.
Decoding software
The decoding software is mainly responsible for analyzing and decoding the QR code image captured by the image sensor. It processes the image, identifies the position and orientation of the QR code, and extracts the information contained in the QR code.
2、Features of QR code scanning lens
The main features of the QR code scanning lens are as follows:
Optical zoom
The QR code scanning lens can scan QR codes at different distances or sizes, and complete the scanning quickly and accurately by automatically or manually adjusting the focal length.
Large field of view
The QR code scanning lens can adapt to scanning QR codes of various sizes, and its large field of view supports it to effectively identify small to large QR codes.
High resolution
The QR code scanning lens has high resolution and can quickly and clearly capture QR code images to provide accurate decoding.
3、Main applications of QR code scanning lenses
QR code scanning lenses have a wide range of applications. Here are some main aspects:
Mobile Payment
QR code scanning lenses are widely used in the field of mobile payment. Users can scan the QR code provided by the merchant, and the merchant can also scan the user’s QR code to realize the payment function.
QR code scanning lens for mobile payment
Logistics Tracking
QR code scanning lenses also have important applications in logistics tracking. Workers can record information such as the status and location of goods by scanning the QR code on the goods.
Electronic Ticketing
QR code scanning lenses are also often used in electronic ticketing systems. Users can scan the QR code on the electronic ticket for entry verification, or enter by providing a QR code scan.
Marketing Activities
QR code scanning lenses are also widely used in marketing activities. Users can obtain relevant promotional information or coupons by scanning the QR code on products or advertisements.
In addition, QR code scanning lenses are also used in the medical industry for patient identification, medical records, drug management, etc.; they are used in the industrial manufacturing field for item tracking, line automation, quality control, etc.