Is laser engraving marking lens different from laser cutting lens?
As we all know, a laser machine at least is composed of laser source tube and some reflecting lens/mirror. Whether it is a laser marking engraving machine or it is a laser cutting machine. The lens is used for reflecting and focusing the laser light. Then is the lens of a laser marking engraving machine and a laser cutting machine the same? Of course, they are not. To speak of the laser lens, first, we need to know the laser lights. A [...]