Invention Grant
- Patent Title: Method and apparatus for laser marking by ablation
- Patent Title (中): 通过消融激光标记的方法和装置
-
Application No.: US11332923Application Date: 2006-01-16
-
Publication No.: US07148447B2Publication Date: 2006-12-12
- Inventor: Jonathan S. Ehrmann , James J. Cordingley , Donald V. Smart , Donald J. Svetkoff
- Applicant: Jonathan S. Ehrmann , James J. Cordingley , Donald V. Smart , Donald J. Svetkoff
- Applicant Address: US MA Billerica
- Assignee: GSI Group Corporation
- Current Assignee: GSI Group Corporation
- Current Assignee Address: US MA Billerica
- Agency: Brooks Kushman P.C.
- Main IPC: B23K26/06
- IPC: B23K26/06 ; B23K26/38

Abstract:
A precision, laser-based method and system for high-speed, sequential processing of material of targets within a field are disclosed that control the irradiation distribution pattern of imaged spots. For each spot, a laser beam is incident on a first anamorphic optical device and a second anamorphic optical device so that the beam is controllably modified into an elliptical irradiance pattern. The modified beam is propagated through a scanning optical system with an objective lens to image a controlled elliptical spot on the target. In one embodiment, the relative orientations of the devices along an optical axis are controlled to modify the beam irradiance pattern to obtain an elliptical shape while the absolute orientation of the devices controls the orientation of the elliptical spot.
Public/Granted literature
Information query
IPC分类: