Application of RFH 355nm UV Laser in Bluetooth Headset Marking

With the continuous advancement of wireless transmission technology, wireless Bluetooth headset (TWS) has become more and more powerful, not only eliminating the need for connecting wires, but also switching music, answering calls and other operations can be done directly on the Bluetooth headset, even its low latency , sound quality, battery life, waterproof and other aspects have also made a qualitative leap. Large-scale integrated Bluetooth headsets have gradually become an indispensable part of our work, life, sports and entertainment, and their market shipments have gradually increased. Some institutions predict that the shipments of wireless Bluetooth headsets will reach 500 million pairs in 2022.

Under the huge market volume, in order to further enhance the exposure and convenient management of their own Bluetooth headset products, manufacturers often mark their own logos and product information on the surface of Bluetooth headsets and supporting battery compartments, and have strict marking effects. requirements, such as requiring the marked text or pattern information to be clear, accurate, not fading and not easy to tamper with, etc.

uv laser | green laser | Ultraviolet lasers | uv dpss laser | nanosecond laser | UV laser source | Solid State Lasers

Obviously, the traditional silk-screen marking method can no longer meet this demand. This is not the case with the laser marking process. Its high efficiency, clear markings, permanent and difficult to tamper with, high flexibility, and customizability are unmatched by silk-screen markings, and it can also enhance the appearance of Bluetooth headsets in an all-round way. This laser, RFH, is easy to integrate in the production line, and the output UV laser (pulse width <20ns) has a good marking effect.

The shell of the Bluetooth headset is mostly made of plastic material, which is highly sensitive to heat. The 355nm ultraviolet laser output by this nanosecond solid-state laser from RFH has high material absorption rate and high single-photon energy, which can easily break the molecular bonds of materials. With a very narrow pulse width, it brings a very small heat-affected zone. Charred, not carbonized; excellent beam quality (M2<1.2), after the integration of high-speed scanning galvanometer system, focusing mirror and other components, the diameter of the spot after focusing is small, about 20um, this level of fineness makes marking when marking The graphic marking is clear, the line transition is smooth, and the marking speed is fast, and the conventional marking can be completed within a few milliseconds to several seconds; the non-contact processing ensures that the material surface is not affected by external forces and ensures product quality.

Since laser marking acts on the surface of the material through a high-energy density beam, the energy after focusing is high, and the surface of the material is instantly melted and vaporized like a sharp knife, so as to obtain the set exquisite patterns, logos and texts and other information. The information cannot be tampered with, is permanent, and has strong anti-counterfeiting properties, and the whole process is automatically controlled by the computer without human intervention. It can also automatically find the target mark with the aid of machine vision, which improves the marking efficiency and liberates the workbench. Manpower to help Bluetooth headset manufacturers reduce costs and increase efficiency.