公开(公告)号：US20240235144A1

公开(公告)日：2024-07-11

申请号：US18603253

申请日：2024-03-13

Applicant: BEIJING RSLASER OPTO-ELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Jinsong WU ,  Bin LIU ,  Xiangyu XU ,  Guangyi LIU ,  Rui JIANG ,  Wenbin CHEN

IPC: H01S3/034 ,  H01S3/036

CPC classification number: H01S3/0346 ,  H01S3/036

Abstract: A dustproof structure for a laser output window of a laser includes a discharge chamber, a gas purifier, a dust prevention pipeline, and a fan. A cavity is provided between the laser output window and a slit. The dust prevention pipeline includes a gas inlet end connected to the gas purifier, a middle part passing through the cavity, and a gas outlet end connected to the fan. At least a portion of a working gas purified by the gas purifier flows through the dust prevention pipeline to the cavity. The fan guides the working gas so as to increase a flow rate of the gas passing through the cavity, thereby strengthening the blowing of the clean gas on the laser output window and effectively preventing dust particles in the working gas from approaching and contaminating the laser output window.