Patent ID: 11931827
Assignee: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. The laser cutting method according to claim 8, wherein the annular light beam emitted by the spectroscopic element will further pass through a first lens, the first lens adjusts the annular light beam into a convergent light beam;
the convergent light beam is reflected by a second reflecting mirror to a second lens, the second lens will readjust the convergent light beam into multiple annular light beams, and wherein the spectroscopic element is arranged on a focal plane on an object side of the first lens, a focal plane on an object side of the second lens coincides with a focal plane on an image side of the first lens, and the focusing lens is arranged on a focal plane on an image side of the second lens;
the multiple annular light beams formed by the readjustment of the second lens are then reflected by a third reflecting mirror to the focusing lens.