Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ichiro Sekine0
Genta Masada0
Hiroyuki Shiraishi0
Date of Patent
May 15, 2007
0Patent Application Number
109387720
Date Filed
September 9, 2004
0Patent Primary Examiner
Patent abstract
An ultraviolet laser is provided that increases the conversion efficiency of laser beams when harmonics having wavelengths of less than 355 nm are generated by converting laser beams with a wavelength conversion element made of a single crystal of lithium tetraborate. A wavelength conversion element is heated and controlled to a specific temperature (for example, 200° C.) within a temperature range of 200 to 450° C. with a predetermined temperature precision.
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