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:
Jan. 06, 2015
Filed:
Mar. 23, 2012
Yoshinori Oshita, Yoshikawa, JP;
Akira Tokuhisa, Tokyo, JP;
Yoshinori Oshita, Yoshikawa, JP;
Akira Tokuhisa, Tokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An ultraviolet laser device comprises a laser beam output unit that outputs infra-red laser beams, and a wavelength conversion unit that wavelength converts the infra-red laser beams. The laser beam output unit comprises a first laser beam output unit that outputs a first infra-red laser beam whose wavelength is 1900-2000 nm, and a second laser beam output unit that outputs a second infra-red laser beam whose wavelength is 1000-1100 nm. The wavelength conversion unit comprises a first element series that the first infra-red light beam is incident upon and propagated through, and a second element series that the laser light propagated through the first element series and the second infra-red laser beam are incident upon, combined in, and propagated through, and constructed so that ultraviolet laser light is outputted, due to the first and second infra-red laser beams being wavelength converted by optical wavelength conversion elements.