355nm DPSS Lasers engraving PCB Boards   Plastics can be seen everywhere in our lives, and colored plastics have also become the most widely used materials, whether in beverage bottles, handicrafts, or building materials. In the past, marking on colored plastics usually used the ink jet coding method, but this method is prone to pollution and the marking effect is not good, so the ultraviolet laser has a stage to play.  

355nm dpss lasers for qr code engraving   To meet the market demand, RFH newly developed S9 series UV laser . Comparing with its kinds, S9 series UV laser features with rugged sealed cavity, extremely compact size, simple and robust, high stability, high efficiency, high reliability and excellent laser beam quality.Its compact design suggests no necessity in building big light path, which greatly reduces space and cost and makes it easy to be installed into UV laser marking machines. In addition, S9 series cavity structure is more stability and more excellent scalability, which means the same laser cavity can be produces multi-power lasers , and the stability of different power ranges is greatly improved