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:
Mar. 21, 2000
Filed:
Jun. 19, 1997
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A receptacle-type optical module has a semiconductor laser device, and a glass rod arranged to be contacted tightly with an optical fiber ferrule to guide light emitted from the semiconductor laser device to an optical fiber. A marker is formed on the physical contact face of the glass rod to position the optical axis of the semiconductor laser device. The semiconductor laser device is caused to emit light, and at the same time, the marker image on the physical contact face and the image of the light emitted from the semiconductor laser device are picked up with an infrared camera and subjected to two-dimensional image processing by an image processing unit, thereby detecting the positional shift of the semiconductor laser device from the desired position. A fine adjustment stage is driven in the direction perpendicular to the optical axis of the semiconductor laser device on the basis of the information of the positional shift to position the semiconductor laser device.