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:
Oct. 31, 1995
Filed:
Oct. 03, 1994
Kazuhiko Terao, Nagano, JP;
Hidetoku Iida, Nagano, JP;
Takeyasu Nakayama, Nagano, JP;
Toshiya Kubo, Nagano, JP;
Jiro Horigome, Nagano, JP;
Yoshihiro Matsuoka, Chiba, JP;
Nobutoshi Takeda, Chiba, JP;
Tohru Mizuhashi, Chiba, JP;
Totoku Electric Co., Ltd., Tokyo, JP;
Emit Seiko Co., Ltd., Tokyo, JP;
Abstract
End face of a ferrule 100 is polished to form a conical surface 3 such that, central axis Ap of said conical surface 3 makes an inclination of 8.degree. with respect to central axis L of optical fiber insertion hole 4, top 3t of said conical surface 3 coincides with said central axis L and has a taper angle of 2.degree.. Because of this, while polishing an end of a optical fiber inserted and fixed inside said optical fiber insertion hole 4, a well balanced oblique spherical surface can be formed and the non-coincidence of the center of said oblique convex surface with the point where said oblique convex surface intersect with the optical axis of said optical fiber can be prevented.