Pull the ring to play a clear QR code? Using RFH nanosecond 355nm UV solid-state lasers is too easy

Consumers who often buy beverages may find that some brands of plastic bottle caps or metal pull tabs "hidden" QR codes. Through the information released by the manufacturer on the bottle, consumers only need to scan the QR code and have the opportunity to receive red envelopes of varying amounts.

When consumers scan the QR code with the camera of the mobile phone, they find that the QR code is not easy to read, and the scanning distance needs to be adjusted repeatedly, and the recognition can only be realized in a place with sufficient light. The main reason for the low recognition rate of the scanning code is that The size of the area where the QR code can be sprayed on the bottle cap and the pull ring is small, and the fineness of the code is not high, which affects the overall recognition success rate.

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If the QR code is marked with an RFH industrial nanosecond solid-state laser, a better scanning code recognition experience can be obtained. It applies the principle of laser marking, and uses a high-energy density beam to act on the surface of the material to quickly ablate to obtain the required pattern, text and other information. The 355nm ultraviolet laser it outputs, whether it is plastic or metal material, has a very high absorption rate, coupled with the high single-photon energy of ultraviolet light, it can quickly break the molecular bonds of materials, and has low thermal impact, especially in thermal The marking on sensitive plastic products will not deform and burn; its beam quality is excellent (M2 < 1.2), the diameter of the focused spot is small, and the lines are delicate during marking. The QR code is clearly and accurately etched into the surface of the material, with no graininess, no consumables, and no contaminants. The QR code marking can be maintained for a long time, avoiding the shortcomings of traditional printing methods.

In the era of mobile Internet, QR code has penetrated into daily life as a very important intermediate carrier. When making mobile payment, people can quickly collect and pay by scanning the QR code; when fighting the epidemic, they can scan the QR code to verify and read efficiently. With a wide range of capacity, manufacturers "integrate" a lot of information into the QR code, such as signs, nameplates, etc., for customers or consumers to scan the code for identification and analysis, becoming an important channel for communication and interconnection... Clear two The QR code is the key to realize scanning code recognition. With the UV nanosecond solid-state laser of Nafei Optoelectronics, it is really easy to mark the QR code clearly.