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.

Date of Patent:
Aug. 20, 2019

Filed:

Dec. 13, 2017
Applicant:

Olympus Corporation, Hachioji-shi, Tokyo, JP;

Inventors:

Toshiaki Suzuki, Tokyo, JP;

Yasuhiro Miyazaki, Tokyo, JP;

Assignee:

OLYMPUS CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/32 (2006.01); G02B 6/42 (2006.01); G02B 23/26 (2006.01);
U.S. Cl.
CPC ...
G02B 6/32 (2013.01); G02B 6/4206 (2013.01); G02B 6/4207 (2013.01); G02B 6/4212 (2013.01); G02B 6/4292 (2013.01); G02B 23/26 (2013.01);
Abstract

In an optical signal transmission system for transmitting signal light through a transmitting fiber, an optical connector, and a receiving fiber to an optical receptacle, the relationships ϕex<ϕen and ϕpd<ϕen are satisfied, where ϕex is the core diameter of the transmitting fiber at the exit face of the transmitting fiber, ϕen is the core diameter of the receiving fiber at the entrance face of the receiving fiber, and ϕpd is the diameter of a receiving surface of a light receiving element in the optical receptacle, and the relationship NAex>Naen is satisfied, where, in the optical connector, NAex is the numerical aperture (NA) of the signal light emitted from the transmitting fiber, and NAen is the NA of the signal light incident on the receiving fiber.


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