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:
Apr. 23, 2019
Filed:
Apr. 17, 2015
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Hiromi Iwamoto, Osaka, JP;
Kunimitsu Yajima, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Abstract
Provided is an optical component including: a pair of substrate bodies each having a refractive index of not lower than 2 with respect to infrared laser light, and having an incident surface or an emitting surface and an inclined surface inclined with respect to this surface at θi; and an antireflective film which prevents reflection of normal incident infrared laser light, wherein θi is not smaller than a complementary angle θtB of a Brewster's angle θB of infrared laser light incident on a plate member and smaller than a critical angle θc, the inclined surfaces are opposed to each other via a gap, and the incident surface and the emitting surface are arranged in parallel to each other.