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. 19, 1999
Filed:
Oct. 02, 1997
NGK Insulators, Ltd., , JP;
Abstract
An outgoing light from a light source transmits a photo coupler, a single-fiber optical fiber array, an optical wave guide chip, a four-fiber optical fiber array and an optical fiber, and is reversed, and an outgoing light from another end of the photo coupler is received by a light receiving unit to roughly position the respective components. Thereafter, the four-fiber optical fiber array is positioned with respect to the optical wave guide chip in such a manner that the amount of light that reaches the light receiving unit becomes maximum. The adjustment of the optical axis is enabled with only a single light receiving unit without the use of plural expensive light receiving units, and the adjustment of the optical axis can be performed with ease in a short period of time.