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Method for producing damage resistant optics

United States Patent

February 11, 2003
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
The present invention provides a system that mitigates the growth of surface damage in an optic. Damage to the optic is minimally initiated. In an embodiment of the invention, damage sites in the optic are initiated, located, and then treated to stop the growth of the damage sites. The step of initiating damage sites in the optic includes a scan of the optic using a laser to initiate defects. The exact positions of the initiated sites are identified. A mitigation process is performed that locally or globally removes the cause of subsequent growth of the damaged sites.
Hackel; Lloyd A. (Livermore, CA), Burnham; Alan K. (Livermore, CA), Penetrante; Bernardino M. (San Ramon, CA), Brusasco; Raymond M. (Livermore, CA), Wegner; Paul J. (Livermore, CA), Hrubesh; Lawrence W. (Pleasanton, CA), Kozlowski; Mark R. (Windsor, CA), Feit; Michael D. (Livermore, CA)
The Regents of the University of California (Oakland, CA)
09/ 948,444
September 7, 2001
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.