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:
Aug. 24, 2021
Filed:
May. 15, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Takahiro Tachibana, Tokyo, JP;
Takehisa Okuda, Tokyo, JP;
Yasuyuki Fujiya, Tokyo, JP;
Shuho Tsubota, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A laser device includes a condensing assembly for condensing laser light output from a laser oscillator and a cover for accommodating the condensing assembly, the cover including protection windows permeable to the laser light on an optical path of the laser light. The protection windows include at least one first protection window having a positive refractive index temperature coefficient and at least one second protection window having a negative refractive index temperature coefficient, the at least one first protection window and the at least one second protection window being arranged along the optical path of the laser light.