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. 10, 2004
Filed:
Oct. 09, 2002
Masaru Suzuki, Mohka, JP;
Hiroyuki Nagatomo, Tochigi, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A collimator lens which makes it possible to limit the direction in which the optical axis of the light discharged from the collimator lens deviates to a specific direction and to accomplish alignment easily is to be provided. The collimator lens comprises a cylindrical glass tube, a columnar fiber chip which is fixed within the cylindrical glass tube and has a through-hole along its center axis, and one end of which is an elliptic surface tilted at a predetermined angle to the center axis, an optical fiber which is inserted from the other end of the fiber chip into its through-hole and whose tip is positioned on the elliptic surface, and a columnar lens which has at one end an elliptic surface opposite the elliptic surface of the fiber chip substantially in parallel and is fixed in the cylindrical glass tube, and has a reference plane parallel to a plane containing the major axis of the elliptic surface at one end of the columnar fiber chip and the center axis of the columnar lens, the reference plane serving as a reference when the collimator lens is to be aligned.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile