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:
Sep. 01, 2020
Filed:
Sep. 18, 2019
Applicant:
Lasertec Corporation, Yokohama, Kanagawa, JP;
Inventors:
Akihiro Ando, Yokohama, JP;
Jun Sakuma, Yokohama, JP;
Assignee:
LASERTEC CORPORATION, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02F 1/355 (2006.01); G02F 1/37 (2006.01);
U.S. Cl.
CPC ...
G02F 1/3501 (2013.01); G02F 1/3534 (2013.01); G02F 1/3551 (2013.01); G02F 1/37 (2013.01); G02F 2001/3503 (2013.01); G02F 2001/3505 (2013.01); G02F 2001/3507 (2013.01);
Abstract
A wavelength conversion apparatus and a wavelength conversion method that can stably output wavelength converted light for a long time are provided. A wavelength conversion apparatusaccording to an aspect of the present disclosure includes a casing, a wavelength conversion elementdisposed inside the casingand configured to convert a wavelength of incident light and output light with the converted wavelength, a first portthat introduces a first gas containing 99.9% or more of a nitrogen gas inside the casing, and a second portthat introduces a second gas containing 1% or more of an oxygen gas.