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. 16, 2024
Filed:
Apr. 06, 2022
Applicant:
Asahi Intecc Co., Ltd., Seto, JP;
Inventors:
Yuko Katsurada, Seto, JP;
Toshihiko Tsukamoto, Seto, JP;
Assignee:
ASAHI INTECC CO., LTD., Seto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 23/24 (2006.01); A61N 5/06 (2006.01);
U.S. Cl.
CPC ...
G02B 23/2469 (2013.01); G02B 6/0008 (2013.01); A61N 5/0601 (2013.01); A61N 5/062 (2013.01); A61N 2005/063 (2013.01);
Abstract
A light irradiation device having an elongated outer shape includes: an optical fiber for emitting light from its distal end, which has a curved part, in which the distal end is oriented in a direction intersecting with a longitudinal direction of the light irradiation device by the curved part; and a light transmitting holder that retains a shape of the curved part of the optical fiber. The optical fiber has a core, or has the core and an outer surface layer, and the holder has a refractive index smaller than a refractive index of the core or a refractive index of the outer surface layer of the optical fiber.