The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2010
Filed:
Feb. 02, 2006
Toshiki Koshimae, Chiyoda-ku, JP;
Takeshi Morimoto, Chiyoda-ku, JP;
Toshiaki Watanabe, Chiyoda-ku, JP;
Toshiki Koshimae, Chiyoda-ku, JP;
Takeshi Morimoto, Chiyoda-ku, JP;
Toshiaki Watanabe, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A laser generator includes a generation means for pumping by a pumping light source () a pumping medium () to generate a fundamental-wave laser beam, an output sensor () for measuring average output power or pulse energy of the fundamental-wave laser beam, a wavelength-conversion element (), arranged on an optical path for the fundamental-wave laser beam, for converting the fundamental-wave laser beam into its higher-harmonic-wave laser beam, and a controller () for memorizing a determination value set to a value lower than a breakage threshold for average output power or pulse energy of the laser beam converted by the wavelength-conversion element (), and for, when the measurement value becomes not lower than the determination value, controlling the output power of the fundamental-wave laser beam to be a value lower than the breakage threshold; thereby, the beam intensity through the wavelength-conversion element () never exceeds the breakage threshold, and thus breakage of the wavelength-conversion element () can be prevented.