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:
Dec. 22, 2015
Filed:
Sep. 14, 2010
Keiji Sumiya, Tsukuba, JP;
Kiyoshi Shimamura, Tsukuba, JP;
Garcia Villora, Tsukuba, JP;
National Institute for Materials Science, Tsukuba-shi, Ibaraki, JP;
Abstract
The inorganic optical filter of the invention consists of a NdFsingle crystal. The optical element of the invention comprises a wavelength conversion element wherein incident light is subjected to wavelength conversion to twice the frequency by quasi-phase-matching using primary matching or tertiary matching, and emitted, and an inorganic optical filter situated in the optical path of light emitted from the wavelength conversion element, wherein the wavelength conversion element consists of a ferroelectric fluoride single crystal represented by Ba(MgZn)F(where 0≦x≦1, and −0.2≦y≦0.2), and the inorganic optical filter consists of a NdFsingle crystal.