REDUCING BACK-REFLECTIONS IN LASER PROCESSING SYSTEMS
摘要
Systems and methods reduce or prevent back-reflections in a laser processing system. A laser processing system includes a laser source to generate an incident laser beam, a laser beam output to direct the incident laser beam toward a work surface, and a lens to receive the incident laser beam along a first axis of propagation that is substantially perpendicular to the work surface. The lens includes a primary axis that is substantially parallel to, and offset from, the first axis of propagation. The lens is configured to focus the incident laser beam onto the work surface along a second axis of propagation that forms a non-perpendicular angle with the work surface such that at least a substantial portion of a reflected laser beam from the work surface does not return to the laser beam output.
申请公布号
WO2009155280(A2)
申请公布日期
2009.12.23
申请号
WO2009US47490
申请日期
2009.06.16
申请人
ELECTRO SCIENTIFIC INDUSTRIES, INC.;ALPAY, MEHMET, E.;JOHANSEN, BRIAN